From 3a91571bbcca4bb1d4e50392fdf0900492b04629 Mon Sep 17 00:00:00 2001
From: Artyom Zankevich <zankevich.artyom@gmail.com>
Date: Fri, 26 Jul 2019 10:45:51 +0300
Subject: [PATCH] [NEW-UI] Add task filter reducer (#587)

* Case sensitive renaming
* Update `cvat-js` lib.
* Add `.env` file
* Add basic redux capabilities
* Remove `setTimeout` as it was fixes in `cvat-js`
* Remove redundant state field
* Add header and footer styles
* Remove `Affix`
* Add basic styles to task cards
* Fix empty component
* Pagination fixes
* Add modal on task delete
* Rename reducers
* Add task reducer
* Add lib. to parse query strings
* Minor refactoring
* Update `cvatjs`
* Add tasks filter reducer
* Do not make request with the same input value
* Fix some linter errors
* Refactor `dashboard-content` component
* Router changes
Redirect added.
Page not found added.
---
 cvat-ui/package.json                          |   1 +
 cvat-ui/public/cvat.min.js                    |   8 +-
 cvat-ui/src/actions/auth.actions.ts           |  13 ++
 cvat-ui/src/actions/authentication-action.ts  |  13 --
 cvat-ui/src/actions/tasks-filter.actions.ts   |   6 +
 cvat-ui/src/actions/tasks.actions.ts          |  19 +++
 cvat-ui/src/components/app/app.tsx            |  33 ++--
 .../dashboard/content/dashboard-content.tsx   | 160 ++++++++----------
 .../src/components/dashboard/dashboard.tsx    |  98 +++++------
 .../dashboard/footer/dashboard-footer.tsx     |  39 +++--
 .../dashboard/header/dashboard-header.tsx     |  80 +++++----
 .../src/components/not-found/not-found.scss   |   6 +
 .../components/not-found/not-found.test.tsx   |   9 +
 .../src/components/not-found/not-found.tsx    |  19 +++
 ...uthenticate-reducer.ts => auth.reducer.ts} |   4 +-
 cvat-ui/src/reducers/root-reducer.ts          |   7 -
 cvat-ui/src/reducers/root.reducer.ts          |  11 ++
 cvat-ui/src/reducers/tasks-filter.reducer.ts  |  12 ++
 cvat-ui/src/reducers/tasks.reducer.ts         |  12 ++
 cvat-ui/src/store.ts                          |   2 +-
 20 files changed, 308 insertions(+), 244 deletions(-)
 create mode 100644 cvat-ui/src/actions/auth.actions.ts
 delete mode 100644 cvat-ui/src/actions/authentication-action.ts
 create mode 100644 cvat-ui/src/actions/tasks-filter.actions.ts
 create mode 100644 cvat-ui/src/actions/tasks.actions.ts
 create mode 100644 cvat-ui/src/components/not-found/not-found.scss
 create mode 100644 cvat-ui/src/components/not-found/not-found.test.tsx
 create mode 100644 cvat-ui/src/components/not-found/not-found.tsx
 rename cvat-ui/src/reducers/{authenticate-reducer.ts => auth.reducer.ts} (55%)
 delete mode 100644 cvat-ui/src/reducers/root-reducer.ts
 create mode 100644 cvat-ui/src/reducers/root.reducer.ts
 create mode 100644 cvat-ui/src/reducers/tasks-filter.reducer.ts
 create mode 100644 cvat-ui/src/reducers/tasks.reducer.ts

diff --git a/cvat-ui/package.json b/cvat-ui/package.json
index c5277b39..482e32d3 100644
--- a/cvat-ui/package.json
+++ b/cvat-ui/package.json
@@ -16,6 +16,7 @@
     "less": "^3.9.0",
     "less-loader": "^5.0.0",
     "node-sass": "^4.12.0",
+    "query-string": "^6.8.1",
     "react": "^16.8.6",
     "react-app-rewired": "^2.1.3",
     "react-dom": "^16.8.6",
diff --git a/cvat-ui/public/cvat.min.js b/cvat-ui/public/cvat.min.js
index 7ec541e7..86d2d35b 100644
--- a/cvat-ui/public/cvat.min.js
+++ b/cvat-ui/public/cvat.min.js
@@ -1,22 +1,22 @@
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r={labels:this.labels};function f(e,s){const{type:a}=e,c=p[s%p.length];let u=null;switch(a){case"rectangle":u=new t(e,s,c,r);break;case"polygon":u=new n(e,s,c,r);break;case"polyline":u=new o(e,s,c,r);break;case"points":u=new i(e,s,c,r);break;default:throw new window.cvat.exceptions.DataError(`An unexpected type of shape "${a}"`)}return u}function h(e,t){if(e.shapes.length){const{type:n}=e.shapes[0],o=p[t%p.length];let i=null;switch(n){case"rectangle":i=new s(e,t,o,r);break;case"polygon":i=new a(e,t,o,r);break;case"polyline":i=new c(e,t,o,r);break;case"points":i=new u(e,t,o,r);break;default:throw new window.cvat.exceptions.DataError(`An unexpected type of track "${n}"`)}return i}return console.warn("The track without any shapes had been found. It was ignored."),null}for(const t of e.tags){const e=++this.count,n=new l(t,e,r);this.tags[n.frame]=this.tags[n.frame]||[],this.tags[n.frame].push(n),this.objects[e]=n}for(const t of e.shapes){const e=++this.count,r=f(t,e);this.shapes[r.frame]=this.shapes[r.frame]||[],this.shapes[r.frame].push(r),this.objects[e]=r}for(const t of e.tracks){const e=++this.count,r=h(t,e);r&&(this.tracks.push(r),this.objects[e]=r)}}export(){return{tracks:Object.values(this.tracks).reduce((e,t)=>(e.push(...t),e),[]).map(e=>e.toJSON()),shapes:this.shapes.map(e=>e.toJSON()),tags:this.shapes.map(e=>e.toJSON())}}empty(){this.shapes={},this.tags={},this.tracks=[],this.objects={},this.count=0}get(e){const{tracks:t}=this,r=this.shapes[e]||[],n=this.tags[e]||[],o=t.concat(r).concat(n).filter(e=>!e.removed),i=[];for(const t of o){const r=f.call(t,e,t.get(e));i.push(r)}return i}}})()},function(e,t,r){r(6),r(148),r(11),(()=>{const t=r(76);function n(e,r){const n=new t(r);return n.updateInCollection=this.save.bind(this,e,n),n.deleteFromCollection=this.delete.bind(this),n}function o(e,t,r,n){if(r){if(typeof t!==r){if("integer"===r&&Number.isInteger(t))return;if(void 0!==t)throw new window.cvat.exceptions.ArgumentError(`Got ${typeof t} value for ${e}. `+`Expected ${r}`);throw new window.cvat.exceptions.ArgumentError(`Got undefined value for ${e}. `+`Expected ${r}`)}}else if(n&&!(t instanceof n)){if(void 0!==t)throw new window.cvat.exceptions.ArgumentError(`Got ${t.constructor.name} value for ${e}. `+`Expected instance of ${n.name}`);throw new window.cvat.exceptions.ArgumentError(`Got undefined value for ${e}. `+`Expected instance of ${n.name}`)}}class i{constructor(e,t,r){this.taskLabels=r.labels,this.clientID=t,this.serverID=e.id,this.group=e.group,this.label=this.taskLabels[e.label_id],this.frame=e.frame,this.removed=!1,this.lock=!1,this.attributes=e.attributes.reduce((e,t)=>(e[t.spec_id]=t.value,e),{}),this.appendDefaultAttributes(this.label)}appendDefaultAttributes(e){const t=e.attributes;for(const e of t)e.id in this.attributes||(this.attributes[e.id]=e.defaultValue)}delete(e){return this.lock&&!e||(this.removed=!0),!0}}class s extends i{constructor(e,t,r,n){super(e,t,n),this.points=e.points,this.occluded=e.occluded,this.zOrder=e.z_order,this.color=r,this.shape=null}toJSON(){return{occluded:this.occluded,z_order:this.zOrder,points:[...this.points],attributes:Object.keys(this.attributes).reduce((e,t)=>(e.push({spec_id:t,value:this.attributes[t]}),e),[]),id:this.serverID,frame:this.frame,label_id:this.label.id,group:this.group}}get(e){if(e!==this.frame)throw new window.cvat.exceptions.ScriptingError("Got frame is not equal to the frame of the shape");return{type:window.cvat.enums.ObjectType.SHAPE,shape:this.shape,clientID:this.clientID,occluded:this.occluded,lock:this.lock,zOrder:this.zOrder,points:[...this.points],attributes:Object.assign({},this.attributes),label:this.label,group:this.group,color:this.color}}save(e,t){if(e!==this.frame)throw new window.cvat.exceptions.ScriptingError("Got frame is not equal to the frame of the shape");if(this.lock&&t.lock)return n.call(this,e,this.get(e));const r=this.get(e),i=t.updateFlags;if(i.label&&(o("label",t.label,null,window.cvat.classes.Label),r.label=t.label,r.attributes={},this.appendDefaultAttributes.call(r,r.label)),i.attributes){const e=r.label.attributes.map(e=>`${e.id}`);for(const n of Object.keys(t.attributes))e.includes(n)&&(r.attributes[n]=t.attributes[n])}if(i.points){o("points",t.points,null,Array),r.points=[];for(const e of t.points)o("coordinate",e,"number",null),r.points.push(e)}if(i.occluded&&(o("occluded",t.occluded,"boolean",null),r.occluded=t.occluded),i.group&&(o("group",t.group,"integer",null),r.group=t.group),i.zOrder&&(o("zOrder",t.zOrder,"integer",null),r.zOrder=t.zOrder),i.lock&&(o("lock",t.lock,"boolean",null),r.lock=t.lock),i.color){if(o("color",t.color,"string",null),/^#[0-9A-F]{6}$/i.test(t.color))throw new window.cvat.exceptions.ArgumentError(`Got invalid color value: "${t.color}"`);r.color=t.color}i.reset();for(const e of Object.keys(r))e in this&&(this[e]=r[e]);return n.call(this,e,this.get(e))}}class a extends i{constructor(e,t,r,n){super(e,t,n),this.shapes=e.shapes.reduce((e,t)=>(e[t.frame]={serverID:t.id,occluded:t.occluded,zOrder:t.z_order,points:t.points,frame:t.frame,outside:t.outside,attributes:t.attributes.reduce((e,t)=>(e[t.spec_id]=t.value,e),{})},e),{}),this.attributes=e.attributes.reduce((e,t)=>(e[t.spec_id]=t.value,e),{}),this.cache={},this.color=r,this.shape=null}toJSON(){return{occluded:this.occluded,z_order:this.zOrder,points:[...this.points],attributes:Object.keys(this.attributes).reduce((e,t)=>(e.push({spec_id:t,value:this.attributes[t]}),e),[]),id:this.serverID,frame:this.frame,label_id:this.label.id,group:this.group,shapes:Object.keys(this.shapes).reduce((e,t)=>(e.push({type:this.type,occluded:this.shapes[t].occluded,z_order:this.shapes[t].zOrder,points:[...this.shapes[t].points],outside:[...this.shapes[t].outside],attributes:Object.keys(...this.shapes[t].attributes).reduce((e,r)=>(e.push({spec_id:r,value:this.shapes[t].attributes[r]}),e),[]),id:this.shapes[t].serverID,frame:+t}),e),[])}}get(e){if(!(e in this.cache)){const t=Object.assign({},this.getPosition(e),{attributes:this.getAttributes(e),label:this.label,group:this.group,type:window.cvat.enums.ObjectType.TRACK,shape:this.shape,clientID:this.clientID,lock:this.lock,color:this.color});this.cache[e]=t}return JSON.parse(JSON.stringify(this.cache[e]))}neighborsFrames(e){const t=Object.keys(this.shapes).map(e=>+e);let r=Number.MAX_SAFE_INTEGER,n=Number.MAX_SAFE_INTEGER;for(const o of t){const t=Math.abs(e-o);o<=e&&t<r?r=t:t<n&&(n=t)}return{leftFrame:r===Number.MAX_SAFE_INTEGER?null:e-r,rightFrame:n===Number.MAX_SAFE_INTEGER?null:e+n}}getAttributes(e){const t={};for(const e in this.attributes)Object.prototype.hasOwnProperty.call(this.attributes,e)&&(t[e]=this.attributes[e]);const r=Object.keys(this.shapes).sort((e,t)=>+e-+t);for(const n of r)if(n<=e){const{attributes:e}=this.shapes[n];for(const r in e)Object.prototype.hasOwnProperty.call(e,r)&&(t[r]=e[r])}return t}save(e,t){if(this.lock||t.lock)return this.lock=t.lock,n.call(this,e,this.get(e));const r=Object.assign(this.get(e));r.attributes=Object.assign(r.attributes),r.points=[...r.points];const i=t.updateFlags;let s=!1;if(i.label&&(o("label",t.label,null,window.cvat.classes.Label),r.label=t.label,r.attributes={},this.appendDefaultAttributes.call(r,r.label)),i.attributes){const e=r.label.attributes.reduce((e,t)=>(e[t.id]=t,e),{});for(const n of Object.keys(t.attributes))n in e&&(r.attributes[n]=t.attributes[n],e[n].mutable?s=!0:this.attributes[n]=t.attributes[n])}if(i.points){o("points",t.points,null,Array),r.points=[];for(const e of t.points)o("coordinate",e,"number",null),r.points.push(e);s=!0}if(i.occluded&&(o("occluded",t.occluded,"boolean",null),r.occluded=t.occluded,s=!0),i.outside&&(o("outside",t.outside,"boolean",null),r.outside=t.outside,s=!0),i.group&&(o("group",t.group,"integer",null),r.group=t.group),i.zOrder&&(o("zOrder",t.zOrder,"integer",null),r.zOrder=t.zOrder,s=!0),i.lock&&(o("lock",t.lock,"boolean",null),r.lock=t.lock),i.color){if(o("color",t.color,"string",null),/^#[0-9A-F]{6}$/i.test(t.color))throw new window.cvat.exceptions.ArgumentError(`Got invalid color value: "${t.color}"`);r.color=t.color}for(const t of Object.keys(r))t in this&&(this[t]=r[t]),this.cache[e][t]=r[t];if(i.label)for(const e of this.shapes)e.attributes={};if(i.keyframe&&!t.keyframe){for(const t in this.cache)+t>e&&delete this.cache[e];return this.cache[e].keyframe=!1,delete this.shapes[e],i.reset(),n.call(this,e,this.get(e))}if(s||i.keyframe&&t.keyframe){for(const t in this.cache)+t>e&&delete this.cache[e];if(this.cache[e].keyframe=!0,t.keyframe=!0,this.shapes[e]={frame:e,zOrder:r.zOrder,points:r.points,outside:r.outside,occluded:r.occluded,attributes:{}},i.attributes){const r=this.label.attributes.reduce((e,t)=>(e[t.id]=t,e),{});for(const n of Object.keys(t.attributes))n in r&&r[n].mutable&&(this.shapes[e].attributes[n]=t.attributes[n],this.shapes[e].attributes[n]=t.attributes[n])}}return i.reset(),n.call(this,e,this.get(e))}getPosition(e){const{leftFrame:t,rightFrame:r}=this.neighborsFrames(e),n=Number.isInteger(r)?this.shapes[r]:null,o=Number.isInteger(t)?this.shapes[t]:null;if(o&&t===e)return{points:[...o.points],occluded:o.occluded,outside:o.outside,zOrder:o.zOrder,keyframe:!0};if(n&&o)return Object.assign({},this.interpolatePosition(o,n,e),{keyframe:!1});if(n)return{points:[...n.points],occluded:n.occluded,outside:!0,zOrder:0,keyframe:!1};if(o)return{points:[...o.points],occluded:o.occluded,outside:o.outside,zOrder:0,keyframe:!1};throw new window.cvat.exceptions.ScriptingError(`No one neightbour frame found for the track with client ID: "${this.id}"`)}}class c extends s{constructor(e,t,r,n){super(e,t,r,n)}}class u extends a{constructor(e,t,r,n){super(e,t,r,n)}interpolatePosition(e,t,r){function n(e){let t=Number.MAX_SAFE_INTEGER,r=Number.MAX_SAFE_INTEGER,n=Number.MIN_SAFE_INTEGER,o=Number.MIN_SAFE_INTEGER;for(let i=0;i<e.length;i+=2)e[i]<t&&(t=e[i]),e[i+1]<r&&(r=e[i+1]),e[i]>n&&(n=e[i]),e[i+1]>o&&(o=e[i+1]);return{xmin:t,ymin:r,xmax:n,ymax:o}}function o(e,t){const r=[],n=t.xmax-t.xmin,o=t.ymax-t.ymin;for(let i=0;i<e.length;i+=2)r.push((e[i]-t.xmin)/n,(e[i+1]-t.ymin)/o);return r}function i(e,t){const r=[],n=t.xmax-t.xmin,o=t.ymax-t.ymin;for(let i=0;i<e.length;i+=2)r.push(e[i]*n+t.xmin,e[i+1]*o+t.ymin);return r}function s(e){const t=[];for(let r=0;r<e.length;r+=2)t.push({x:e[r],y:e[r+1]});return t}function a(e){const t=[];for(const r of e)t.push(r.x,r.y);return t}function c(e,t){function r(e){let t=0;for(let 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It was ignored."),null}t.exports=class{constructor(t){this.startFrame=t.startFrame,this.stopFrame=t.stopFrame,this.frameMeta=t.frameMeta,this.labels=t.labels.reduce((t,e)=>(t[e.id]=e,t),{}),this.shapes={},this.tags={},this.tracks=[],this.objects={},this.count=0,this.flush=!1,this.collectionZ={},this.groups={max:0},this.injection={labels:this.labels,collectionZ:this.collectionZ,groups:this.groups,frameMeta:this.frameMeta}}import(t){for(const e of t.tags){const t=++this.count,n=new f(e,t,this.injection);this.tags[n.frame]=this.tags[n.frame]||[],this.tags[n.frame].push(n),this.objects[t]=n}for(const e of t.shapes){const t=++this.count,n=m(e,t,this.injection);this.shapes[n.frame]=this.shapes[n.frame]||[],this.shapes[n.frame].push(n),this.objects[t]=n}for(const e of t.tracks){const t=++this.count,n=v(e,t,this.injection);n&&(this.tracks.push(n),this.objects[t]=n)}return this}export(){return{tracks:this.tracks.filter(t=>!t.removed).map(t=>t.toJSON()),shapes:Object.values(this.shapes).reduce((t,e)=>(t.push(...e),t),[]).filter(t=>!t.removed).map(t=>t.toJSON()),tags:Object.values(this.tags).reduce((t,e)=>(t.push(...e),t),[]).filter(t=>!t.removed).map(t=>t.toJSON())}}get(t){const{tracks:e}=this,n=this.shapes[t]||[],r=this.tags[t]||[],o=e.concat(n).concat(r).filter(t=>!t.removed),i=[];for(const e of o){const n=e.get(t);if(n.outside&&!n.keyframe)continue;const r=h.call(e,t,n);i.push(r)}return i}merge(t){if(d("shapes for merge",t,null,Array),!t.length)return;const e=t.map(t=>{d("object state",t,null,window.cvat.classes.ObjectState);const e=this.objects[t.clientID];if(void 0===e)throw new window.cvat.exceptions.ArgumentError("The object has not been saved yet. Call ObjectState.put([state]) before you can merge it");return e}),n={},{label:r,shapeType:o}=t[0];if(!(r.id in this.labels))throw new window.cvat.exceptions.ArgumentError(`Unknown label for the task: ${r.id}`);if(!Object.values(window.cvat.enums.ObjectShape).includes(o))throw new window.cvat.exceptions.ArgumentError(`Got unknown shapeType "${o}"`);const i=r.attributes.reduce((t,e)=>(t[e.id]=e,t),{});for(let s=0;s<e.length;s++){const a=e[s],c=t[s];if(c.label.id!==r.id)throw new window.cvat.exceptions.ArgumentError(`All shape labels are expected to be ${r.name}, but got ${c.label.name}`);if(c.shapeType!==o)throw new window.cvat.exceptions.ArgumentError(`All shapes are expected to be ${o}, but got ${c.shapeType}`);if(a instanceof p){if(a.frame in n&&!n[a.frame].outside)throw new window.cvat.exceptions.ArgumentError("Expected only one visible shape per frame");n[a.frame]={type:o,frame:a.frame,points:[...a.points],occluded:a.occluded,zOrder:a.zOrder,outside:!1,attributes:Object.keys(a.attributes).reduce((t,e)=>(e in i&&i[e].mutable&&t.push({spec_id:+e,value:a.attributes[e]}),t),[])},a.frame+1 in n||(n[a.frame+1]=JSON.parse(JSON.stringify(n[a.frame])),n[a.frame+1].outside=!0,n[a.frame+1].frame++)}else{if(!(a instanceof l))throw new window.cvat.exceptions.ArgumentError(`Trying to merge unknown object type: ${a.constructor.name}. `+"Only shapes and tracks are expected.");{const t={};for(const e of Object.keys(a.shapes)){const r=a.shapes[e];if(e in n&&!n[e].outside){if(r.outside)continue;throw new window.cvat.exceptions.ArgumentError("Expected only one visible shape per frame")}let i=!1;for(const e in r.attributes)e in t&&t[e]===r.attributes[e]||(i=!0,t[e]=r.attributes[e]);n[e]={type:o,frame:+e,points:[...r.points],occluded:r.occluded,outside:r.outside,zOrder:r.zOrder,attributes:i?Object.keys(t).reduce((e,n)=>(e.push({spec_id:+n,value:t[n]}),e),[]):[]}}}}}let s=!1;for(const t of Object.keys(n).sort((t,e)=>+t-+e)){if((s=s||n[t].outside)||!n[t].outside)break;delete n[t]}const a=++this.count,c=v({frame:Math.min.apply(null,Object.keys(n).map(t=>+t)),shapes:Object.values(n),group:0,label_id:r.id,attributes:Object.keys(t[0].attributes).reduce((e,n)=>(i[n].mutable||e.push({spec_id:+n,value:t[0].attributes[n]}),e),[])},a,this.injection);this.tracks.push(c),this.objects[a]=c;for(const t of e)t.removed=!0,"function"==typeof t.resetCache&&t.resetCache()}split(t,e){d("object state",t,null,window.cvat.classes.ObjectState),d("frame",e,"integer",null);const n=this.objects[t.clientID];if(void 0===n)throw new window.cvat.exceptions.ArgumentError("The object has not been saved yet. Call annotations.put([state]) before");if(t.objectType!==window.cvat.enums.ObjectType.TRACK)return;const r=Object.keys(n.shapes).sort((t,e)=>+t-+e);if(e<=+r[0]||e>r[r.length-1])return;const o=n.label.attributes.reduce((t,e)=>(t[e.id]=e,t),{}),i=n.toJSON(),s={type:t.shapeType,points:[...t.points],occluded:t.occluded,outside:t.outside,zOrder:0,attributes:Object.keys(t.attributes).reduce((e,n)=>(o[n].mutable||e.push({spec_id:+n,value:t.attributes[n]}),e),[]),frame:e},a={frame:i.frame,group:0,label_id:i.label_id,attributes:i.attributes,shapes:[]},c=JSON.parse(JSON.stringify(a));c.frame=e,c.shapes.push(JSON.parse(JSON.stringify(s))),i.shapes.map(t=>(delete t.id,t.frame<e?a.shapes.push(JSON.parse(JSON.stringify(t))):t.frame>e&&c.shapes.push(JSON.parse(JSON.stringify(t))),t)),a.shapes.push(s),a.shapes[a.shapes.length-1].outside=!0;let u=++this.count;const l=v(a,u,this.injection);this.tracks.push(l),this.objects[u]=l,u=++this.count;const p=v(c,u,this.injection);this.tracks.push(p),this.objects[u]=p,n.removed=!0,n.resetCache()}group(t,e){d("shapes for group",t,null,Array);const n=t.map(t=>{d("object state",t,null,window.cvat.classes.ObjectState);const e=this.objects[t.clientID];if(void 0===e)throw new window.cvat.exceptions.ArgumentError("The object has not been saved yet. Call annotations.put([state]) before");return e}),r=e?0:++this.groups.max;for(const t of n)t.group=r,"function"==typeof t.resetCache&&t.resetCache();return r}clear(){this.shapes={},this.tags={},this.tracks=[],this.objects={},this.count=0,this.flush=!0}statistics(){const t={},e={rectangle:{shape:0,track:0},polygon:{shape:0,track:0},polyline:{shape:0,track:0},points:{shape:0,track:0},tags:0,manually:0,interpolated:0,total:0},n=JSON.parse(JSON.stringify(e));for(const n of Object.values(this.labels)){const{name:r}=n;t[r]=JSON.parse(JSON.stringify(e))}for(const e of Object.values(this.objects)){let n=null;if(e instanceof p)n="shape";else if(e instanceof l)n="track";else{if(!(e instanceof f))throw new window.cvat.exceptions.ScriptingError(`Unexpected object type: "${n}"`);n="tag"}const r=e.label.name;if("tag"===n)t[r].tags++,t[r].manually++,t[r].total++;else{const{shapeType:o}=e;if(t[r][o][n]++,"track"===n){const n=Object.keys(e.shapes).sort((t,e)=>+t-+e).map(t=>+t);let o=n[0],i=!1;for(const s of n){if(i){const e=s-o-1;t[r].interpolated+=e,t[r].total+=e}i=!e.shapes[s].outside,o=s,i&&(t[r].manually++,t[r].total++)}const s=n[n.length-1];if(s!==this.stopFrame&&!e.shapes[s].outside){const e=this.stopFrame-s;t[r].interpolated+=e,t[r].total+=e}}else t[r].manually++,t[r].total++}}for(const e of Object.keys(t))for(const r of Object.keys(t[e]))if("object"==typeof t[e][r])for(const o of Object.keys(t[e][r]))n[r][o]+=t[e][r][o];else n[r]+=t[e][r];return new b(t,n)}put(t){d("shapes for put",t,null,Array);const e={shapes:[],tracks:[],tags:[]};function n(t,e){const n=+e,r=this.attributes[e];return d("attribute id",n,"integer",null),d("attribute value",r,"string",null),t.push({spec_id:n,value:r}),t}for(const r of t){d("object state",r,null,window.cvat.classes.ObjectState),d("state client ID",r.clientID,"undefined",null),d("state frame",r.frame,"integer",null),d("state attributes",r.attributes,null,Object),d("state label",r.label,null,window.cvat.classes.Label);const t=Object.keys(r.attributes).reduce(n.bind(r),[]),o=r.label.attributes.reduce((t,e)=>(t[e.id]=e,t),{});if("tag"===r.objectType)e.tags.push({attributes:t,frame:r.frame,label_id:r.label.id,group:0});else{d("state occluded",r.occluded,"boolean",null),d("state points",r.points,null,Array);for(const t of r.points)d("point coordinate",t,"number",null);if(!Object.values(window.cvat.enums.ObjectShape).includes(r.shapeType))throw new window.cvat.exceptions.ArgumentError("Object shape must be one of: "+`${JSON.stringify(Object.values(window.cvat.enums.ObjectShape))}`);if("shape"===r.objectType)e.shapes.push({attributes:t,frame:r.frame,group:0,label_id:r.label.id,occluded:r.occluded||!1,points:[...r.points],type:r.shapeType,z_order:0});else{if("track"!==r.objectType)throw new window.cvat.exceptions.ArgumentError("Object type must be one of: "+`${JSON.stringify(Object.values(window.cvat.enums.ObjectType))}`);e.tracks.push({attributes:t.filter(t=>!o[t.spec_id].mutable),frame:r.frame,group:0,label_id:r.label.id,shapes:[{attributes:t.filter(t=>o[t.spec_id].mutable),frame:r.frame,occluded:r.occluded||!1,outside:!1,points:[...r.points],type:r.shapeType,z_order:0}]})}}}this.import(e)}select(t,e,n){d("shapes for select",t,null,Array),d("x coordinate",e,"number",null),d("y coordinate",n,"number",null);let r=null,o=null;for(const i of t){if(d("object state",i,null,window.cvat.classes.ObjectState),i.outside)continue;const t=this.objects[i.clientID];if(void 0===t)throw new window.cvat.exceptions.ArgumentError("The object has not been saved yet. Call annotations.put([state]) before");const s=t.constructor.distance(i.points,e,n);null!==s&&(null===r||s<r)&&(r=s,o=i)}return{state:o,distance:r}}}})()},function(t,e,n){"use strict";var r=n(2);t.exports=function(t,e){var n=[][t];return!n||!r(function(){n.call(null,e||function(){throw 1},1)})}},function(t,e,n){n(4),n(82),n(7),(()=>{const e=n(77),{checkObjectType:r}=n(33);function o(t,n){const r=new e(n);return r.hidden={save:this.save.bind(this,t,r),delete:this.delete.bind(this),up:this.up.bind(this,t,r),down:this.down.bind(this,t,r)},r}function i(t,e){if(t===window.cvat.enums.ObjectShape.RECTANGLE){if(e.length/2!=2)throw new window.cvat.exceptions.DataError(`Rectangle must have 2 points, but got ${e.length/2}`)}else if(t===window.cvat.enums.ObjectShape.POLYGON){if(e.length/2<3)throw new window.cvat.exceptions.DataError(`Polygon must have at least 3 points, but got ${e.length/2}`)}else if(t===window.cvat.enums.ObjectShape.POLYLINE){if(e.length/2<2)throw new window.cvat.exceptions.DataError(`Polyline must have at least 2 points, but got ${e.length/2}`)}else{if(t!==window.cvat.enums.ObjectShape.POINTS)throw new window.cvat.exceptions.ArgumentError(`Unknown value of shapeType has been recieved ${t}`);if(e.length/2<1)throw new window.cvat.exceptions.DataError(`Points must have at least 1 points, but got ${e.length/2}`)}}function s(t,e){if(t===window.cvat.enums.ObjectShape.POINTS)return!0;let n=Number.MAX_SAFE_INTEGER,r=Number.MIN_SAFE_INTEGER,o=Number.MAX_SAFE_INTEGER,i=Number.MIN_SAFE_INTEGER;for(let t=0;t<e.length-1;t+=2)n=Math.min(n,e[t]),r=Math.max(r,e[t]),o=Math.min(o,e[t+1]),i=Math.max(i,e[t+1]);if(t===window.cvat.enums.ObjectShape.POLYLINE){return Math.max(r-n,i-o)>=3}return(r-n)*(i-o)>=9}function a(t,e){const{values:n}=e,r=e.inputType;if("string"!=typeof t)throw new window.cvat.exceptions.ArgumentError(`Attribute value is expected to be string, but got ${typeof t}`);return r===window.cvat.enums.AttributeType.NUMBER?+t>=+n[0]&&+t<=+n[1]&&!((+t-+n[0])%+n[2]):r===window.cvat.enums.AttributeType.CHECKBOX?["true","false"].includes(t.toLowerCase()):n.includes(t)}class c{constructor(t,e,n){this.taskLabels=n.labels,this.clientID=e,this.serverID=t.id,this.group=t.group,this.label=this.taskLabels[t.label_id],this.frame=t.frame,this.removed=!1,this.lock=!1,this.attributes=t.attributes.reduce((t,e)=>(t[e.spec_id]=e.value,t),{}),this.appendDefaultAttributes(this.label),n.groups.max=Math.max(n.groups.max,this.group)}appendDefaultAttributes(t){const e=t.attributes;for(const t of e)t.id in this.attributes||(this.attributes[t.id]=t.defaultValue)}delete(t){return this.lock&&!t||(this.removed=!0),!0}}class u extends c{constructor(t,e,n,r){super(t,e,r),this.frameMeta=r.frameMeta,this.collectionZ=r.collectionZ,this.color=n,this.shapeType=null}_getZ(t){return this.collectionZ[t]=this.collectionZ[t]||{max:0,min:0},this.collectionZ[t]}save(){throw new window.cvat.exceptions.ScriptingError("Is not implemented")}get(){throw new window.cvat.exceptions.ScriptingError("Is not implemented")}toJSON(){throw new window.cvat.exceptions.ScriptingError("Is not implemented")}up(t,e){const n=this._getZ(t);n.max++,e.zOrder=n.max}down(t,e){const n=this._getZ(t);n.min--,e.zOrder=n.min}}class l extends u{constructor(t,e,n,r){super(t,e,n,r),this.points=t.points,this.occluded=t.occluded,this.zOrder=t.z_order;const o=this._getZ(this.frame);o.max=Math.max(o.max,this.zOrder||0),o.min=Math.min(o.min,this.zOrder||0)}toJSON(){return{type:this.shapeType,clientID:this.clientID,occluded:this.occluded,z_order:this.zOrder,points:[...this.points],attributes:Object.keys(this.attributes).reduce((t,e)=>(t.push({spec_id:e,value:this.attributes[e]}),t),[]),id:this.serverID,frame:this.frame,label_id:this.label.id,group:this.group}}get(t){if(t!==this.frame)throw new window.cvat.exceptions.ScriptingError("Got frame is not equal to the frame of the shape");return{objectType:window.cvat.enums.ObjectType.SHAPE,shapeType:this.shapeType,clientID:this.clientID,serverID:this.serverID,occluded:this.occluded,lock:this.lock,zOrder:this.zOrder,points:[...this.points],attributes:Object.assign({},this.attributes),label:this.label,group:this.group,color:this.color}}save(t,e){if(t!==this.frame)throw new window.cvat.exceptions.ScriptingError("Got frame is not equal to the frame of the shape");if(this.lock&&e.lock)return o.call(this,t,this.get(t));const n=this.get(t),c=e.updateFlags;if(c.label&&(r("label",e.label,null,window.cvat.classes.Label),n.label=e.label,n.attributes={},this.appendDefaultAttributes.call(n,n.label)),c.attributes){const t=n.label.attributes.reduce((t,e)=>(t[e.id]=e,t),{});for(const r of Object.keys(e.attributes)){const o=e.attributes[r];if(!(r in t&&a(o,t[r])))throw new window.cvat.exceptions.ArgumentError(`Trying to save unknown attribute with id ${r} and value ${o}`);n.attributes[r]=o}}if(c.points){r("points",e.points,null,Array),i(this.shapeType,e.points);const{width:o,height:a}=this.frameMeta[t],c=[];for(let t=0;t<e.points.length-1;t+=2){const n=e.points[t],i=e.points[t+1];r("coordinate",n,"number",null),r("coordinate",i,"number",null),c.push(Math.clamp(n,0,o),Math.clamp(i,0,a))}s(this.shapeType,c)&&(n.points=c)}if(c.occluded&&(r("occluded",e.occluded,"boolean",null),n.occluded=e.occluded),c.group&&(r("group",e.group,"integer",null),n.group=e.group),c.zOrder&&(r("zOrder",e.zOrder,"integer",null),n.zOrder=e.zOrder),c.lock&&(r("lock",e.lock,"boolean",null),n.lock=e.lock),c.color){if(r("color",e.color,"string",null),/^#[0-9A-F]{6}$/i.test(e.color))throw new window.cvat.exceptions.ArgumentError(`Got invalid color value: "${e.color}"`);n.color=e.color}c.reset();for(const t of Object.keys(n))t in this&&(this[t]=n[t]);return o.call(this,t,this.get(t))}}class p extends u{constructor(t,e,n,r){super(t,e,n,r),this.shapes=t.shapes.reduce((t,e)=>{t[e.frame]={serverID:e.id,occluded:e.occluded,zOrder:e.z_order,points:e.points,outside:e.outside,attributes:e.attributes.reduce((t,e)=>(t[e.spec_id]=e.value,t),{})};const n=this._getZ(e.frame);return n.max=Math.max(n.max,e.z_order),n.min=Math.min(n.min,e.z_order),t},{}),this.cache={}}toJSON(){const t=this.label.attributes.reduce((t,e)=>(t[e.id]=e,t),{});return{clientID:this.clientID,id:this.serverID,frame:this.frame,label_id:this.label.id,group:this.group,attributes:Object.keys(this.attributes).reduce((e,n)=>(t[n].mutable||e.push({spec_id:n,value:this.attributes[n]}),e),[]),shapes:Object.keys(this.shapes).reduce((e,n)=>(e.push({type:this.shapeType,occluded:this.shapes[n].occluded,z_order:this.shapes[n].zOrder,points:[...this.shapes[n].points],outside:this.shapes[n].outside,attributes:Object.keys(this.shapes[n].attributes).reduce((e,r)=>(t[r].mutable&&e.push({spec_id:r,value:this.shapes[n].attributes[r]}),e),[]),id:this.shapes[n].serverID,frame:+n}),e),[])}}get(t){if(!(t in this.cache)){const e=Object.assign({},this.getPosition(t),{attributes:this.getAttributes(t),group:this.group,objectType:window.cvat.enums.ObjectType.TRACK,shapeType:this.shapeType,clientID:this.clientID,serverID:this.serverID,lock:this.lock,color:this.color});this.cache[t]=e}const e=JSON.parse(JSON.stringify(this.cache[t]));return e.label=this.label,e}neighborsFrames(t){const e=Object.keys(this.shapes).map(t=>+t);let n=Number.MAX_SAFE_INTEGER,r=Number.MAX_SAFE_INTEGER;for(const o of e){const e=Math.abs(t-o);o<=t&&e<n?n=e:e<r&&(r=e)}return{leftFrame:n===Number.MAX_SAFE_INTEGER?null:t-n,rightFrame:r===Number.MAX_SAFE_INTEGER?null:t+r}}getAttributes(t){const e={};for(const t in this.attributes)Object.prototype.hasOwnProperty.call(this.attributes,t)&&(e[t]=this.attributes[t]);const n=Object.keys(this.shapes).sort((t,e)=>+t-+e);for(const r of n)if(r<=t){const{attributes:t}=this.shapes[r];for(const n in t)Object.prototype.hasOwnProperty.call(t,n)&&(e[n]=t[n])}return e}save(t,e){if(this.lock&&e.lock)return o.call(this,t,this.get(t));const n=Object.assign(this.get(t));n.attributes=Object.assign(n.attributes),n.points=[...n.points];const c=e.updateFlags;let u=!1;c.label&&(r("label",e.label,null,window.cvat.classes.Label),n.label=e.label,n.attributes={},this.appendDefaultAttributes.call(n,n.label));const l=n.label.attributes.reduce((t,e)=>(t[e.id]=e,t),{});if(c.attributes)for(const t of Object.keys(e.attributes)){const r=e.attributes[t];if(!(t in l&&a(r,l[t])))throw new window.cvat.exceptions.ArgumentError(`Trying to save unknown attribute with id ${t} and value ${r}`);n.attributes[t]=r}if(c.points){r("points",e.points,null,Array),i(this.shapeType,e.points);const{width:o,height:a}=this.frameMeta[t],c=[];for(let t=0;t<e.points.length-1;t+=2){const n=e.points[t],i=e.points[t+1];r("coordinate",n,"number",null),r("coordinate",i,"number",null),c.push(Math.clamp(n,0,o),Math.clamp(i,0,a))}s(this.shapeType,c)&&(n.points=c,u=!0)}if(c.occluded&&(r("occluded",e.occluded,"boolean",null),n.occluded=e.occluded,u=!0),c.outside&&(r("outside",e.outside,"boolean",null),n.outside=e.outside,u=!0),c.group&&(r("group",e.group,"integer",null),n.group=e.group),c.zOrder&&(r("zOrder",e.zOrder,"integer",null),n.zOrder=e.zOrder,u=!0),c.lock&&(r("lock",e.lock,"boolean",null),n.lock=e.lock),c.color){if(r("color",e.color,"string",null),/^#[0-9A-F]{6}$/i.test(e.color))throw new window.cvat.exceptions.ArgumentError(`Got invalid color value: "${e.color}"`);n.color=e.color}c.keyframe&&r("keyframe",e.keyframe,"boolean",null);for(const e of Object.keys(n))e in this&&(this[e]=n[e]),this.cache[t][e]=n[e];if(c.attributes)for(const r of Object.keys(n.attributes))l[r].mutable||(this.shapes[t].attributes[r]=e.attributes[r],this.shapes[t].attributes[r]=e.attributes[r]);if(c.label)for(const t of Object.values(this.shapes))t.attributes={};if(c.keyframe&&!e.keyframe){for(const e in this.cache)+e>t&&delete this.cache[e];return this.cache[t].keyframe=!1,delete this.shapes[t],c.reset(),o.call(this,t,this.get(t))}if(u||c.keyframe&&e.keyframe){for(const e in this.cache)+e>t&&delete this.cache[e];if(this.cache[t].keyframe=!0,e.keyframe=!0,this.shapes[t]={frame:t,zOrder:n.zOrder,points:n.points,outside:n.outside,occluded:n.occluded,attributes:{}},c.attributes)for(const r of Object.keys(n.attributes))l[r].mutable&&(this.shapes[t].attributes[r]=e.attributes[r],this.shapes[t].attributes[r]=e.attributes[r])}return c.reset(),o.call(this,t,this.get(t))}getPosition(t){const{leftFrame:e,rightFrame:n}=this.neighborsFrames(t),r=Number.isInteger(n)?this.shapes[n]:null,o=Number.isInteger(e)?this.shapes[e]:null;if(o&&e===t)return{points:[...o.points],occluded:o.occluded,outside:o.outside,zOrder:o.zOrder,keyframe:!0};if(r&&o)return Object.assign({},this.interpolatePosition(o,r,t),{keyframe:!1});if(r)return{points:[...r.points],occluded:r.occluded,outside:!0,zOrder:0,keyframe:!1};if(o)return{points:[...o.points],occluded:o.occluded,outside:o.outside,zOrder:0,keyframe:!1};throw new window.cvat.exceptions.ScriptingError(`No one neightbour frame found for the track with client ID: "${this.id}"`)}delete(t){return this.lock&&!t||(this.removed=!0,this.resetCache()),!0}resetCache(){this.cache={}}}class f extends l{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.RECTANGLE,i(this.shapeType,this.points)}static distance(t,e,n){const[r,o,i,s]=t;return e>=r&&e<=i&&n>=o&&n<=s?Math.min.apply(null,[e-r,n-o,i-e,s-n]):null}}class h extends l{constructor(t,e,n,r){super(t,e,n,r)}}class d extends h{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.POLYGON,i(this.shapeType,this.points)}static distance(t,e,n){function r(t,r,o,i){return(o-t)*(n-r)-(e-t)*(i-r)}let o=0;const i=[];for(let s=0,a=t.length-2;s<t.length-1;a=s,s+=2){const c=t[a],u=t[a+1],l=t[s],p=t[s+1];u<=n?p>n&&r(c,u,l,p)>0&&o++:p<=n&&r(c,u,l,p)<0&&o--;const f=e-(u-p),h=n-(l-c);(f-c)*(l-f)>=0&&(h-u)*(p-h)>=0?i.push(Math.sqrt(Math.pow(e-f,2)+Math.pow(n-h,2))):i.push(Math.min(Math.sqrt(Math.pow(c-e,2)+Math.pow(u-n,2)),Math.sqrt(Math.pow(l-e,2)+Math.pow(p-n,2))))}return 0!==o?Math.min.apply(null,i):null}}class b extends h{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.POLYLINE,i(this.shapeType,this.points)}static distance(t,e,n){const r=[];for(let o=0;o<t.length-2;o+=2){const i=t[o],s=t[o+1],a=t[o+2],c=t[o+3];(e-i)*(a-e)>=0&&(n-s)*(c-n)>=0?r.push(Math.abs((c-s)*e-(a-i)*n+a*s-c*i)/Math.sqrt(Math.pow(c-s,2)+Math.pow(a-i,2))):r.push(Math.min(Math.sqrt(Math.pow(i-e,2)+Math.pow(s-n,2)),Math.sqrt(Math.pow(a-e,2)+Math.pow(c-n,2))))}return Math.min.apply(null,r)}}class g extends h{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.POINTS,i(this.shapeType,this.points)}static distance(t,e,n){const r=[];for(let o=0;o<t.length;o+=2){const i=t[o],s=t[o+1];r.push(Math.sqrt(Math.pow(i-e,2)+Math.pow(s-n,2)))}return Math.min.apply(null,r)}}class m extends p{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.RECTANGLE;for(const t of Object.values(this.shapes))i(this.shapeType,t.points)}interpolatePosition(t,e,n){const r=(n-t.frame)/(e.frame-t.frame),o=[e.points[0]-t.points[0],e.points[1]-t.points[1],e.points[2]-t.points[2],e.points[3]-t.points[3]];return{points:[t.points[0]+o[0]*r,t.points[1]+o[1]*r,t.points[2]+o[2]*r,t.points[3]+o[3]*r],occluded:t.occluded,outside:t.outside,zOrder:t.zOrder}}}class v extends p{constructor(t,e,n,r){super(t,e,n,r)}interpolatePosition(t,e,n){function r(t){let e=Number.MAX_SAFE_INTEGER,n=Number.MAX_SAFE_INTEGER,r=Number.MIN_SAFE_INTEGER,o=Number.MIN_SAFE_INTEGER;for(let i=0;i<t.length;i+=2)t[i]<e&&(e=t[i]),t[i+1]<n&&(n=t[i+1]),t[i]>r&&(r=t[i]),t[i+1]>o&&(o=t[i+1]);return{xmin:e,ymin:n,xmax:r,ymax:o}}function o(t,e){const n=[],r=e.xmax-e.xmin,o=e.ymax-e.ymin;for(let i=0;i<t.length;i+=2)n.push((t[i]-e.xmin)/r,(t[i+1]-e.ymin)/o);return n}function i(t,e){const n=[],r=e.xmax-e.xmin,o=e.ymax-e.ymin;for(let i=0;i<t.length;i+=2)n.push(t[i]*r+e.xmin,t[i+1]*o+e.ymin);return n}function s(t){const e=[];for(let n=0;n<t.length;n+=2)e.push({x:t[n],y:t[n+1]});return e}function 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Object.keys(o))a[o[t].value]={value:t,distance:o[t].distance};return a}(Array.from(t.keys()),Array.from(e.keys()),s),c=(n(e)+n(t))/(e.length+t.length);!function(t,e){for(const n of Object.keys(t))t[n].distance>e&&delete t[n]}(a,c+3*Math.sqrt((r(t,c)+r(e,c))/(t.length+e.length)));for(const t of Object.keys(a))a[t]=a[t].value;const u=this.appendMapping(a,t,e);for(const n of u)o.push(t[n]),i.push(e[a[n]]);return[o,i]}let u=r(t.points),l=r(e.points);(u.xmax-u.xmin<1||l.ymax-l.ymin<1)&&(l=u={xmin:0,xmax:1024,ymin:0,ymax:768});const p=s(o(t.points,u)),f=s(o(e.points,l));let h=[],d=[];if(p.length>f.length){const[t,e]=c.call(this,f,p);h=e,d=t}else{const[t,e]=c.call(this,p,f);h=t,d=e}const b=i(a(h),u),g=i(a(d),l),m=(n-t.frame)/(e.frame-t.frame),v=[];for(let t=0;t<b.length;t++)v.push(b[t]+(g[t]-b[t])*m);return{points:v,occluded:t.occluded,outside:t.outside,zOrder:t.zOrder}}appendMapping(t,e,n){const r=Object.values(t).map(t=>+t),o=Object.keys(t).map(t=>+t),i=[];function s(t){let e=t,o=t;if(!r.length)throw new window.cvat.exceptions.ScriptingError("Interpolation mapping is empty");for(;!r.includes(e);)--e<0&&(e=n.length-1);for(;!r.includes(o);)++o>=n.length&&(o=0);return[e,o]}function a(t,e,r){const o=[];for(;e!==r;)o.push(n[e]),++e>=n.length&&(e=0);o.push(n[r]);let i=0,s=0,a=!1;for(let e=1;e<o.length;e++){const r=o[e],c=o[e-1],u=Math.sqrt(Math.pow(r.x-c.x,2)+Math.pow(r.y-c.y,2));a||(s+=u),i+=u,n[t]===o[e]&&(a=!0)}return i?s/i:0}for(let c=0;c<n.length;c++){const u=r.indexOf(c);if(-1===u){const[r,o]=s(c),u=a(c,r,o),l=n[r],p=n[o],f={x:l.x+(p.x-l.x)*u,y:l.y+(p.y-l.y)*u};e.push(f),t[e.length-1]=c,i.push(e.length-1)}else i.push(o[u])}return i}}class w extends v{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.POLYGON;for(const t of Object.values(this.shapes))i(this.shapeType,t.points)}}class y extends v{constructor(t,e,n,r){super(t,e,n,r),this.shapeType=window.cvat.enums.ObjectShape.POLYLINE;for(const t of 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e=n(17);t.exports=class{constructor(t,e,n){this.sessionType=n instanceof window.cvat.classes.Task?"task":"job",this.id=n.id,this.version=t,this.collection=e,this.initialObjects=[],this.hash=this._getHash();const r=this.collection.export();for(const t of r.shapes)this.initialObjects[t.id]=t;for(const t of r.tracks)this.initialObjects[t.id]=t;for(const t of r.tags)this.initialObjects[t.id]=t}_getHash(){const t=this.collection.export();return JSON.stringify(t)}async _request(t,n){return await e.annotations.updateAnnotations(this.sessionType,this.id,t,n)}async _put(t){return await this._request(t,"put")}async _create(t){return await this._request(t,"create")}async _update(t){return await this._request(t,"update")}async _delete(t){return await this._request(t,"delete")}_split(t){const e={created:{shapes:[],tracks:[],tags:[]},updated:{shapes:[],tracks:[],tags:[]},deleted:{shapes:[],tracks:[],tags:[]}};for(const n of Object.keys(t))for(const r of t[n])if(r.id in this.initialObjects)JSON.stringify(r)!==JSON.stringify(this.initialObjects[r.id])&&e.updated[n].push(r);else{if(void 0!==r.id)throw new window.cvat.exceptions.ScriptingError(`Id of object is defined "${r.id}"`+"but it absents in initial state");e.created[n].push(r)}const n=t.tracks.concat(t.shapes).concat(t.tags).map(t=>t.id);for(const t of Object.keys(this.initialObjects))if(!n.includes(+t)){const n=this.initialObjects[t];let r=null;r="shapes"in n?"tracks":"points"in n?"shapes":"tags",e.deleted[r].push(n)}return e}_updateCreatedObjects(t,e){const n=t.tracks.length+t.shapes.length+t.tags.length,r=e.tracks.length+e.shapes.length+e.tags.length;if(r!==n)throw new window.cvat.exception.ScriptingError("Number of indexes is differed by number of saved objects"+`${r} vs ${n}`);for(const n of Object.keys(e))for(let r=0;r<e[n].length;r++){const o=e[n][r];this.collection.objects[o].serverID=t[n][r].id,"tracks"===n&&this.collection.objects[o].resetCache()}}_receiveIndexes(t){const e={tracks:t.tracks.map(t=>t.clientID),shapes:t.shapes.map(t=>t.clientID),tags:t.tags.map(t=>t.clientID)};return t.tracks.concat(t.shapes).concat(t.tags).map(t=>(delete t.clientID,t)),e}async save(t){"function"!=typeof t&&(t=t=>{console.log(t)});try{const e=this.collection.export(),{flush:n}=this.collection;if(n){t("New objects are being saved..");const n=this._receiveIndexes(e),r=await this._put(Object.assign({},e,{version:this.version}));this.version=r.version,this.collection.flush=!1,t("Saved objects are being updated in the client"),this._updateCreatedObjects(r,n),t("Initial state is being updated");for(const t of r.shapes.concat(r.tracks).concat(r.tags))this.initialObjects[t.id]=t}else{const{created:n,updated:r,deleted:o}=this._split(e);t("New objects are being saved..");const i=this._receiveIndexes(n),s=await this._create(Object.assign({},n,{version:this.version}));this.version=s.version,t("Saved objects are being updated in the client"),this._updateCreatedObjects(s,i),t("Initial state is being updated");for(const t of s.shapes.concat(s.tracks).concat(s.tags))this.initialObjects[t.id]=t;t("Changed objects are being saved.."),this._receiveIndexes(r);const a=await this._update(Object.assign({},r,{version:this.version}));this.version=s.version,t("Initial state is being updated");for(const t of a.shapes.concat(a.tracks).concat(a.tags))this.initialObjects[t.id]=t;t("Changed objects are being saved.."),this._receiveIndexes(o);const c=await this._delete(Object.assign({},o,{version:this.version}));this._version=c.version,t("Initial state is being updated");for(const t of c.shapes.concat(c.tracks).concat(c.tags))delete this.initialObjects[t.id]}this.hash=this._getHash(),t("Saving is done")}catch(e){throw t(`Can not save annotations: ${e.message}`),e}}hasUnsavedChanges(){return this._getHash()!==this.hash}}})()},function(t,e,n){n(4),n(7),n(45),(()=>{t.exports={Attribute:class{constructor(t){const e={id:void 0,default_value:void 0,input_type:void 0,mutable:void 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e)Object.prototype.hasOwnProperty.call(e,n)&&Object.prototype.hasOwnProperty.call(t,n)&&(e[n]=t[n]);if(e.attributes=[],Object.prototype.hasOwnProperty.call(t,"attributes")&&Array.isArray(t.attributes))for(const n of t.attributes)e.attributes.push(new window.cvat.classes.Attribute(n));Object.defineProperties(this,Object.freeze({id:{get:()=>e.id},name:{get:()=>e.name},attributes:{get:()=>[...e.attributes]}}))}toJSON(){const t={name:this.name,attributes:[...this.attributes.map(t=>t.toJSON())]};return void 0!==this.id&&(t.id=this.id),t}}}})()},function(t,e){(()=>{const e=Object.freeze({DIR:"DIR",REG:"REG"}),n=Object.freeze({ANNOTATION:"annotation",VALIDATION:"validation",COMPLETED:"completed"}),r=Object.freeze({ANNOTATION:"annotation",INTERPOLATION:"interpolation"}),o=Object.freeze({CHECKBOX:"checkbox",RADIO:"radio",SELECT:"select",NUMBER:"number",TEXT:"text"}),i=Object.freeze({TAG:"tag",SHAPE:"shape",TRACK:"track"}),s=Object.freeze({RECTANGLE:"rectangle",POLYGON:"polygon",POLYLINE:"polyline",POINTS:"points"}),a=Object.freeze({frameDownloaded:0});t.exports={ShareFileType:e,TaskStatus:n,TaskMode:r,AttributeType:o,ObjectType:i,ObjectShape:s,LogType:{pasteObject:0,changeAttribute:1,dragObject:2,deleteObject:3,pressShortcut:4,resizeObject:5,sendLogs:6,saveJob:7,jumpFrame:8,drawObject:9,changeLabel:10,sendTaskInfo:11,loadJob:12,moveImage:13,zoomImage:14,lockObject:15,mergeObjects:16,copyObject:17,propagateObject:18,undoAction:19,redoAction:20,sendUserActivity:21,sendException:22,changeFrame:23,debugInfo:24,fitImage:25,rotateImage:26},EventType:a}})()},function(t){t.exports={name:"cvat.js",version:"1.0.0",description:"Part 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t.plugins.list.implementation=e.list,t.plugins.register.implementation=e.register,t.server.about.implementation=async()=>await r.server.about(),t.server.share.implementation=async t=>await r.server.share(t),t.server.login.implementation=async(t,e)=>{await r.server.login(t,e)},t.server.logout.implementation=async()=>{await r.server.logout()},t.users.get.implementation=async t=>{c(t,{self:o});let e=null;return e=(e="self"in t&&t.self?[e=await r.users.getSelf()]:await r.users.getUsers()).map(t=>new window.cvat.classes.User(t))},t.jobs.get.implementation=async t=>{if(c(t,{taskID:i,jobID:i}),"taskID"in t&&"jobID"in t)throw new window.cvat.exceptions.ArgumentError('Only one of fields "taskID" and "jobID" allowed simultaneously');if(!Object.keys(t).length)throw new window.cvat.exceptions.ArgumentError("Job filter must not be empty");let e=null;if("taskID"in t)e=await r.tasks.getTasks(`id=${t.taskID}`);else{const n=await r.jobs.getJob(t.jobID);void 0!==n.task_id&&(e=await r.tasks.getTasks(`id=${n.task_id}`))}if(null!==e&&e.length){const n=new window.cvat.classes.Task(e[0]);return t.jobID?n.jobs.filter(e=>e.id===t.jobID):n.jobs}return[]},t.tasks.get.implementation=async t=>{if(c(t,{page:i,name:a,id:i,owner:a,assignee:a,search:a,status:s.bind(window.cvat.enums.TaskStatus),mode:s.bind(window.cvat.enums.TaskMode)}),"search"in t&&Object.keys(t).length>1&&!("page"in t&&2===Object.keys(t).length))throw new window.cvat.exceptions.ArgumentError('Do not use the filter field "search" with others');if("id"in t&&Object.keys(t).length>1&&!("page"in t&&2===Object.keys(t).length))throw new window.cvat.exceptions.ArgumentError('Do not use the filter field "id" with others');const e=new URLSearchParams;for(const n of["name","owner","assignee","search","status","mode","id","page"])Object.prototype.hasOwnProperty.call(t,n)&&e.set(n,t[n]);const n=await r.tasks.getTasks(e.toString()),o=n.map(t=>new window.cvat.classes.Task(t));return o.count=n.count,o},t}})()}]);
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\ No newline at end of file
diff --git a/cvat-ui/src/actions/auth.actions.ts b/cvat-ui/src/actions/auth.actions.ts
new file mode 100644
index 00000000..35d9aeb2
--- /dev/null
+++ b/cvat-ui/src/actions/auth.actions.ts
@@ -0,0 +1,13 @@
+export const login = (isAuthenticated: boolean) => (dispatch: any) => {
+  dispatch({
+    type: 'LOGIN',
+    payload: isAuthenticated,
+  });
+}
+
+export const logout = (isAuthenticated: boolean) => (dispatch: any) => {
+  dispatch({
+    type: 'LOGOUT',
+    payload: isAuthenticated,
+  });
+}
diff --git a/cvat-ui/src/actions/authentication-action.ts b/cvat-ui/src/actions/authentication-action.ts
deleted file mode 100644
index b444a6cd..00000000
--- a/cvat-ui/src/actions/authentication-action.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-export const loginAction = () => (dispatch: any) => {
-  dispatch({
-    type: 'LOGIN',
-    payload: true,
-  })
-}
-
-export const logoutAction = () => (dispatch: any) => {
-  dispatch({
-    type: 'LOGOUT',
-    payload: false,
-  })
-}
diff --git a/cvat-ui/src/actions/tasks-filter.actions.ts b/cvat-ui/src/actions/tasks-filter.actions.ts
new file mode 100644
index 00000000..c676a42b
--- /dev/null
+++ b/cvat-ui/src/actions/tasks-filter.actions.ts
@@ -0,0 +1,6 @@
+export const filterTasks = (queryParams: { search?: string, page?: number }) => (dispatch: any) => {
+  dispatch({
+    type: 'FILTER_TASKS',
+    payload: queryParams,
+  });
+}
diff --git a/cvat-ui/src/actions/tasks.actions.ts b/cvat-ui/src/actions/tasks.actions.ts
new file mode 100644
index 00000000..bca38134
--- /dev/null
+++ b/cvat-ui/src/actions/tasks.actions.ts
@@ -0,0 +1,19 @@
+export const getTasks = (tasks: []) => (dispatch: any) => {
+  dispatch({
+    type: 'GET_TASKS',
+    payload: tasks,
+  });
+}
+
+export const getTasksAsync = (queryObject = {}) => {
+  return (dispatch: any) => {
+    return (window as any).cvat.tasks.get(queryObject).then(
+      (tasks: any) => {
+        dispatch(getTasks(tasks));
+      },
+      (error: any) => {
+        console.log(error);
+      },
+    );
+  };
+}
diff --git a/cvat-ui/src/components/app/app.tsx b/cvat-ui/src/components/app/app.tsx
index bd82febc..31db2996 100644
--- a/cvat-ui/src/components/app/app.tsx
+++ b/cvat-ui/src/components/app/app.tsx
@@ -1,32 +1,24 @@
 import React, { PureComponent } from 'react';
-import { BrowserRouter as Router, Route, Redirect } from 'react-router-dom';
+import { BrowserRouter as Router, Route, Switch, Redirect } from 'react-router-dom';
+
 import { connect } from 'react-redux';
+import { login, logout } from '../../actions/auth.actions';
 
 import Dashboard from '../dashboard/dashboard';
-
-import { loginAction, logoutAction } from '../../actions/authentication-action';
+import NotFound from '../not-found/not-found';
 
 import './app.scss';
 
 declare const window: any;
 
-const mapDispatchToProps = (dispatch: any) => ({
-  login: () => { dispatch(loginAction()) },
-  logout: () => { dispatch(logoutAction()) },
-})
-
-const mapStateToProps = (state: any) => ({
-  ...state.authenticateReducer,
-})
-
 class App extends PureComponent<any, any> {
   componentDidMount() {
     window.cvat.server.login(process.env.REACT_APP_LOGIN, process.env.REACT_APP_PASSWORD).then(
       (_response: any) => {
-        this.props.login();
+        this.props.dispatch(login(true));
       },
       (_error: any) => {
-        this.props.logout();
+        this.props.dispatch(logout(false));
       }
     );
   }
@@ -34,13 +26,18 @@ class App extends PureComponent<any, any> {
   render() {
     return(
       <Router>
-        <div>
-          <Redirect from="/" to="dashboard" />
+        <Switch>
+          <Redirect path="/" exact to="/dashboard" />
           <Route path="/dashboard" component={ Dashboard } />
-        </div>
+          <Route component={ NotFound } />
+        </Switch>
       </Router>
     );
   }
 }
 
-export default connect(mapStateToProps, mapDispatchToProps)(App);
+const mapStateToProps = (state: any) => {
+  return state.authContext;
+};
+
+export default connect(mapStateToProps)(App);
diff --git a/cvat-ui/src/components/dashboard/content/dashboard-content.tsx b/cvat-ui/src/components/dashboard/content/dashboard-content.tsx
index 87afb81d..e1675496 100644
--- a/cvat-ui/src/components/dashboard/content/dashboard-content.tsx
+++ b/cvat-ui/src/components/dashboard/content/dashboard-content.tsx
@@ -1,5 +1,8 @@
 import React, { Component } from 'react';
 
+import { connect } from 'react-redux';
+import { getTasksAsync } from '../../../actions/tasks.actions';
+
 import { Layout, Empty, Button, Modal, Col, Row } from 'antd';
 import Title from 'antd/lib/typography/Title';
 
@@ -8,16 +11,9 @@ import './dashboard-content.scss';
 const { Content } = Layout;
 const { confirm } = Modal;
 
-interface DashboardContentAction {
-  id: number,
-  name: string,
-  trigger: Function,
-}
-
 class DashboardContent extends Component<any, any> {
   hostUrl: string | undefined;
   apiUrl: string | undefined;
-  actions: DashboardContentAction[];
 
   constructor(props: any) {
     super(props);
@@ -25,37 +21,6 @@ class DashboardContent extends Component<any, any> {
     this.state = {};
     this.hostUrl = process.env.REACT_APP_API_HOST_URL;
     this.apiUrl = process.env.REACT_APP_API_FULL_URL;
-
-    this.actions = [
-      {
-        id: 1,
-        name: 'Dump annotation',
-        trigger: () => {
-          this.onDumpAnnotation();
-        },
-      },
-      {
-        id: 2,
-        name: 'Upload annotation',
-        trigger: () => {
-          this.onUploadAnnotation();
-        },
-      },
-      {
-        id: 3,
-        name: 'Update task',
-        trigger: (task: any) => {
-          this.onUpdateTask(task);
-        },
-      },
-      {
-        id: 4,
-        name: 'Delete task',
-        trigger: (task: any) => {
-          this.onDeleteTask(task);
-        },
-      },
-    ];
   }
 
   render() {
@@ -66,48 +31,11 @@ class DashboardContent extends Component<any, any> {
     );
   }
 
-  private onDumpAnnotation() {
-    console.log('Dump');
-  }
-
-  private onUploadAnnotation() {
-    console.log('Upload');
-  }
-
-  private onUpdateTask(task: any) {
-    console.log('Update');
-  }
-
-  private onDeleteTask(task: any) {
-    const props = this.props;
-
-    confirm({
-      title: 'Do you want to delete this task?',
-      okText: 'Yes',
-      okType: 'danger',
-      centered: true,
-      onOk() {
-        return props.deleteTask(task);
-      },
-      cancelText: 'No',
-      onCancel() {
-        return;
-      },
-    });
-  }
-
   private renderPlaceholder() {
     return (
-      <Empty
-        className="empty"
-        description={
-          <span>
-            No tasks found...
-          </span>
-        }
-      >
-        <Button type="primary">
-          Create a new task
+      <Empty className="empty" description="No tasks found...">
+        <Button type="primary" onClick={ this.createTask }>
+          Create task
         </Button>
       </Empty>
     )
@@ -132,17 +60,26 @@ class DashboardContent extends Component<any, any> {
                   </Col>
 
                   <Col className="card-actions" span={8}>
-                    {
-                      this.actions.map(
-                        (action: DashboardContentAction) => (
-                          <Row type="flex" key={ action.id }>
-                            <Button type="primary" onClick={ () => action.trigger(task) }>
-                              { action.name }
-                            </Button>
-                          </Row>
-                        )
-                      )
-                    }
+                    <Row type="flex">
+                      <Button type="primary" onClick={ this.onDumpAnnotation }>
+                        Dump annotation
+                      </Button>
+                    </Row>
+                    <Row type="flex">
+                      <Button type="primary" onClick={ this.onUploadAnnotation }>
+                        Upload annotation
+                      </Button>
+                    </Row>
+                    <Row type="flex">
+                      <Button type="primary" onClick={ this.onUpdateTask }>
+                        Update task
+                      </Button>
+                    </Row>
+                    <Row type="flex">
+                      <Button type="primary" onClick={ () => this.onDeleteTask(task) }>
+                        Delete task
+                      </Button>
+                    </Row>
                   </Col>
 
                   <Col className="сard-jobs" span={8}>
@@ -165,6 +102,49 @@ class DashboardContent extends Component<any, any> {
       </Content>
     );
   }
+
+  private createTask = () => {
+    console.log('Create task');
+  }
+
+  private onUpdateTask = (task: any) => {
+    console.log('Update task');
+  }
+
+  private onDeleteTask = (task: any) => {
+    const self = this;
+
+    confirm({
+      title: 'Do you want to delete this task?',
+      okText: 'Yes',
+      okType: 'danger',
+      centered: true,
+      onOk(closeFunction: Function) {
+        return task.delete().then(
+          () => {
+            self.props.dispatch(getTasksAsync());
+            closeFunction();
+          },
+        );
+      },
+      cancelText: 'No',
+      onCancel() {
+        return;
+      },
+    });
+  }
+
+  private onDumpAnnotation = () => {
+    console.log('Dump annotatio');
+  }
+
+  private onUploadAnnotation = () => {
+    console.log('Upload annotation');
+  }
 }
 
-export default DashboardContent;
+const mapStateToProps = (state: any) => {
+  return state.tasks;
+};
+
+export default connect(mapStateToProps)(DashboardContent);
diff --git a/cvat-ui/src/components/dashboard/dashboard.tsx b/cvat-ui/src/components/dashboard/dashboard.tsx
index 99a47edb..d7a28adf 100644
--- a/cvat-ui/src/components/dashboard/dashboard.tsx
+++ b/cvat-ui/src/components/dashboard/dashboard.tsx
@@ -1,4 +1,11 @@
-import React, { Component } from 'react';
+import React, { PureComponent } from 'react';
+import { Location, Action } from 'history';
+
+import * as queryString from 'query-string';
+
+import { connect } from 'react-redux';
+import { getTasksAsync } from '../../actions/tasks.actions';
+import { filterTasks } from '../../actions/tasks-filter.actions';
 
 import { Layout } from 'antd';
 
@@ -8,77 +15,50 @@ import DashboardFooter from './footer/dashboard-footer';
 
 import './dashboard.scss';
 
-interface DashboardState {
-  tasks: [];
-}
-
-class Dashboard extends Component<any, DashboardState> {
-  constructor(props: any) {
-    super(props);
-
-    this.state = { tasks: [] };
-  }
-
+class Dashboard extends PureComponent<any, any> {
   componentDidMount() {
-    this.getTasks();
+    this.loadTasks(this.props.location.search);
+
+    this.props.history.listen((location: Location, action: Action) => {
+      this.loadTasks(location.search);
+    })
   }
 
   render() {
     return (
       <Layout className="layout">
-        <DashboardHeader
-          onSearch={ this.getTasks }>
-        </DashboardHeader>
-
-        <DashboardContent
-          tasks={ this.state.tasks }
-          deleteTask={ this.deleteTask }>
-        </DashboardContent>
-
-        <DashboardFooter
-          tasksCount={ (this.state.tasks as any)['count'] }
-          onPageChange={ this.onPageChange }>
-        </DashboardFooter>
+        <DashboardHeader />
+        <DashboardContent />
+        <DashboardFooter />
       </Layout>
     );
   }
 
-  private getTasks = (query?: string) => {
-    const queryObject = {
-      search: query
-    };
-
-    (window as any).cvat.tasks.get(query ? queryObject : {}).then(
-      (tasks: any) => {
-        this.setState({ tasks });
-      },
-      (error: any) => {
-        console.log(error);
-      }
-    );
-  }
+  private loadTasks = (params: any) => {
+    const query = queryString.parse(params);
+    const queryObject = this.setQueryObject(query);
 
-  private onPageChange = (page: number) => {
-    (window as any).cvat.tasks.get({ page }).then(
-      (tasks: any) => {
-        this.setState({ tasks });
-      },
-      (error: any) => {
-        console.log(error);
-      }
-    );
+    this.props.dispatch(filterTasks(queryObject));
+    this.props.dispatch(getTasksAsync(queryObject));
   }
 
-  private deleteTask = (task: any) => {
-    task.delete().then(
-      (_deleted: any) => {
-        this.getTasks();
-      },
-      (error: any) => {
-        console.log(error);
-      }
-    );
+  private setQueryObject = (params: { search?: string, page?: string }): { search?: string, page?: number } => {
+    const queryObject: { search?: string, page?: number } = {};
+
+    if (params['search']) {
+      queryObject.search = params.search.toString();
+    }
+
+    if (params['page']) {
+      queryObject.page = parseInt(params.page);
+    }
+
+    return queryObject;
   }
 }
 
-export default Dashboard;
+const mapStateToProps = (state: any) => {
+  return { ...state.tasks, ...state.tasksFilter };
+};
+
+export default connect(mapStateToProps)(Dashboard);
diff --git a/cvat-ui/src/components/dashboard/footer/dashboard-footer.tsx b/cvat-ui/src/components/dashboard/footer/dashboard-footer.tsx
index 12ceaeda..f5860ab0 100644
--- a/cvat-ui/src/components/dashboard/footer/dashboard-footer.tsx
+++ b/cvat-ui/src/components/dashboard/footer/dashboard-footer.tsx
@@ -1,5 +1,11 @@
 import React, { PureComponent } from 'react';
 
+import * as queryString from 'query-string';
+
+import { withRouter } from 'react-router-dom'
+
+import { connect } from 'react-redux';
+
 import { Layout, Pagination, Row, Col } from 'antd';
 
 import './dashboard-footer.scss';
@@ -8,25 +14,32 @@ const { Footer } = Layout;
 
 class DashboardFooter extends PureComponent<any, any> {
   render() {
-    const pagination = (
-      <Col span={24}>
-        <Pagination
-          className="dashboard-footer__pagination"
-          hideOnSinglePage
-          onChange={ this.props.onPageChange }
-          total={ this.props.tasksCount }>
-        </Pagination>
-      </Col>
-    );
-
     return(
       <Footer className="dashboard-footer">
         <Row type="flex" gutter={16}>
-          { this.props.tasksCount ? pagination : '' }
+          <Col span={24}>
+            <Pagination
+              className="dashboard-footer__pagination"
+              current={ this.props.currentPage || 1 }
+              hideOnSinglePage
+              onChange={ this.onPageChange }
+              total={ this.props.tasksCount }>
+            </Pagination>
+          </Col>
         </Row>
       </Footer>
     );
   }
+
+  private onPageChange = (page: number, pageSize?: number) => {
+    const params = { search: this.props.searchQuery, page }
+
+    this.props.history.push({ search: queryString.stringify(params) });
+  }
 }
 
-export default DashboardFooter;
+const mapStateToProps = (state: any) => {
+  return { ...state.tasks, ...state.tasksFilter };
+};
+
+export default withRouter(connect(mapStateToProps)(DashboardFooter) as any);
diff --git a/cvat-ui/src/components/dashboard/header/dashboard-header.tsx b/cvat-ui/src/components/dashboard/header/dashboard-header.tsx
index d3b987fc..4473bacc 100644
--- a/cvat-ui/src/components/dashboard/header/dashboard-header.tsx
+++ b/cvat-ui/src/components/dashboard/header/dashboard-header.tsx
@@ -1,5 +1,9 @@
 import React, { Component } from 'react';
 
+import { withRouter } from 'react-router-dom';
+
+import { connect } from 'react-redux';
+
 import { Layout, Row, Col, Button, Input } from 'antd';
 import Title from 'antd/lib/typography/Title';
 
@@ -8,35 +12,21 @@ import './dashboard-header.scss';
 const { Header } = Layout;
 const { Search } = Input;
 
-interface DashboardHeaderAction {
-  id: number,
-  name: string,
-  trigger: Function,
-}
-
 class DashboardHeader extends Component<any, any> {
-  actions: DashboardHeaderAction[];
   hostUrl: string | undefined;
 
   constructor(props: any) {
     super(props);
 
-    this.state = {};
+    this.state = { searchQuery: this.props.searchQuery };
 
     this.hostUrl = process.env.REACT_APP_API_HOST_URL;
+  }
 
-    this.actions = [
-      {
-        id: 1,
-        name: 'Create task',
-        trigger: () => {},
-      },
-      {
-        id: 2,
-        name: 'User guide',
-        trigger: this.openUserGuide,
-      },
-    ];
+  componentDidUpdate(prevProps: any) {
+    if (this.props.searchQuery !== prevProps.searchQuery) {
+      this.setState({ searchQuery: this.props.searchQuery });
+    }
   }
 
   render() {
@@ -50,33 +40,49 @@ class DashboardHeader extends Component<any, any> {
             <Search
               className="search"
               placeholder="Search for tasks"
-              onSearch={ query => this.props.onSearch(query) }
+              value={ this.state.searchQuery }
+              onChange={ this.onValueChange }
+              onSearch={ query => this.onSearch(query) }
               enterButton>
             </Search>
           </Col>
           <Col className="dashboard-header__actions" span={8}>
-            {
-              this.actions.map(
-                (action: DashboardHeaderAction) => (
-                  <Button
-                    className="action"
-                    type="primary"
-                    key={ action.id }
-                    onClick={ () => action.trigger() }>
-                    { action.name }
-                  </Button>
-                )
-              )
-            }
+            <Button
+              className="action"
+              type="primary"
+              onClick={ this.createTask }>
+              Create task
+            </Button>
+            <Button
+              className="action"
+              type="primary"
+              href={ `${this.hostUrl}/documentation/user_guide.html` }
+              target="blank">
+              User guide
+            </Button>
           </Col>
         </Row>
       </Header>
     );
   }
 
-  private openUserGuide = () => {
-    window.open(`${this.hostUrl}/documentation/user_guide.html`, '_blank')
+  private createTask = () => {
+    console.log('Create task');
+  }
+
+  private onValueChange = (event: any) => {
+    this.setState({ searchQuery: event.target.value });
+  }
+
+  private onSearch = (query: string) => {
+    if (query !== this.props.searchQuery) {
+      query ? this.props.history.push(`?search=${query}`) : this.props.history.push(this.props.location.pathname);
+    }
   }
 }
 
-export default DashboardHeader;
+const mapStateToProps = (state: any) => {
+  return { ...state.tasks, ...state.tasksFilter };
+};
+
+export default withRouter(connect(mapStateToProps)(DashboardHeader) as any);
diff --git a/cvat-ui/src/components/not-found/not-found.scss b/cvat-ui/src/components/not-found/not-found.scss
new file mode 100644
index 00000000..df7c9408
--- /dev/null
+++ b/cvat-ui/src/components/not-found/not-found.scss
@@ -0,0 +1,6 @@
+.not-found {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  height: 100vh;
+}
diff --git a/cvat-ui/src/components/not-found/not-found.test.tsx b/cvat-ui/src/components/not-found/not-found.test.tsx
new file mode 100644
index 00000000..8dbc7a01
--- /dev/null
+++ b/cvat-ui/src/components/not-found/not-found.test.tsx
@@ -0,0 +1,9 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import NotFound from './not-found';
+
+it('renders without crashing', () => {
+  const div = document.createElement('div');
+  ReactDOM.render(<NotFound />, div);
+  ReactDOM.unmountComponentAtNode(div);
+});
diff --git a/cvat-ui/src/components/not-found/not-found.tsx b/cvat-ui/src/components/not-found/not-found.tsx
new file mode 100644
index 00000000..9e23b429
--- /dev/null
+++ b/cvat-ui/src/components/not-found/not-found.tsx
@@ -0,0 +1,19 @@
+import React, { PureComponent } from 'react';
+
+import { Empty, Button } from 'antd';
+
+import './not-found.scss';
+
+class NotFound extends PureComponent<any, any> {
+  render() {
+    return(
+      <Empty className="not-found" description="Page not found...">
+        <Button type="primary" href="/dashboard">
+          Go back to dashboard
+        </Button>
+      </Empty>
+    );
+  }
+}
+
+export default NotFound;
diff --git a/cvat-ui/src/reducers/authenticate-reducer.ts b/cvat-ui/src/reducers/auth.reducer.ts
similarity index 55%
rename from cvat-ui/src/reducers/authenticate-reducer.ts
rename to cvat-ui/src/reducers/auth.reducer.ts
index 207dc50a..751df369 100644
--- a/cvat-ui/src/reducers/authenticate-reducer.ts
+++ b/cvat-ui/src/reducers/auth.reducer.ts
@@ -1,9 +1,9 @@
 export default (state = {}, action: any) => {
   switch (action.type) {
     case 'LOGIN':
-      return { ...state, isLoggedIn: action.payload };
+      return { ...state, isAuthenticated: action.payload };
     case 'LOGOUT':
-      return { ...state, isLoggedIn: action.payload };
+      return { ...state, isAuthenticated: action.payload };
     default:
       return state;
   }
diff --git a/cvat-ui/src/reducers/root-reducer.ts b/cvat-ui/src/reducers/root-reducer.ts
deleted file mode 100644
index 45bb8199..00000000
--- a/cvat-ui/src/reducers/root-reducer.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-import { combineReducers } from 'redux';
-
-import authenticationReducer from './authenticate-reducer';
-
-export default combineReducers({
-  authenticationReducer,
-});
diff --git a/cvat-ui/src/reducers/root.reducer.ts b/cvat-ui/src/reducers/root.reducer.ts
new file mode 100644
index 00000000..538118b9
--- /dev/null
+++ b/cvat-ui/src/reducers/root.reducer.ts
@@ -0,0 +1,11 @@
+import { combineReducers } from 'redux';
+
+import authContext from './auth.reducer';
+import tasks from './tasks.reducer';
+import tasksFilter from './tasks-filter.reducer';
+
+export default combineReducers({
+  authContext,
+  tasks,
+  tasksFilter,
+});
diff --git a/cvat-ui/src/reducers/tasks-filter.reducer.ts b/cvat-ui/src/reducers/tasks-filter.reducer.ts
new file mode 100644
index 00000000..648f3814
--- /dev/null
+++ b/cvat-ui/src/reducers/tasks-filter.reducer.ts
@@ -0,0 +1,12 @@
+export default (state = { searchQuery: '', currentPage: 1 }, action: any) => {
+  switch (action.type) {
+    case 'FILTER_TASKS':
+      return {
+        ...state,
+        searchQuery: action.payload.search,
+        currentPage: action.payload.page,
+      };
+    default:
+      return state;
+  }
+}
diff --git a/cvat-ui/src/reducers/tasks.reducer.ts b/cvat-ui/src/reducers/tasks.reducer.ts
new file mode 100644
index 00000000..574c6afb
--- /dev/null
+++ b/cvat-ui/src/reducers/tasks.reducer.ts
@@ -0,0 +1,12 @@
+export default (state: any = { tasks: [], tasksCount: 0 }, action: any) => {
+  switch (action.type) {
+    case 'GET_TASKS':
+      return {
+        ...state,
+        tasks: Array.from(action.payload.values()),
+        tasksCount: action.payload.count,
+      };
+    default:
+      return state;
+  }
+}
diff --git a/cvat-ui/src/store.ts b/cvat-ui/src/store.ts
index 0bf56c23..244f5187 100644
--- a/cvat-ui/src/store.ts
+++ b/cvat-ui/src/store.ts
@@ -1,7 +1,7 @@
 import { createStore, applyMiddleware, compose } from 'redux';
 import thunk from 'redux-thunk';
 
-import rootReducer from './reducers/root-reducer';
+import rootReducer from './reducers/root.reducer';
 
 export default function configureStore(initialState = {}) {
   return createStore(