From ba41c8dae5e82bd1f39fb9a6cd8518e25dcdb894 Mon Sep 17 00:00:00 2001
From: 4gray <4gray@users.noreply.github.com>
Date: Tue, 28 Feb 2023 22:16:14 +0100
Subject: [PATCH] feat: draggable channels in favorites list

---
 .../channel-list-container.component.html     | 36 +++++++++----------
 .../channel-list-container.component.ts       | 21 ++++++++---
 .../channel-list-item.component.scss          |  5 +++
 .../channel-list-item.component.ts            | 11 ++++++
 src/app/services/playlists.service.ts         | 11 ++++++
 src/app/shared/shared.module.ts               |  1 +
 src/app/state/actions.ts                      |  5 +++
 src/app/state/effects.ts                      | 18 ++++++++++
 src/app/state/reducers.ts                     | 16 +++++++++
 9 files changed, 101 insertions(+), 23 deletions(-)

diff --git a/src/app/player/components/channel-list-container/channel-list-container.component.html b/src/app/player/components/channel-list-container/channel-list-container.component.html
index cae62441d..ed17752f3 100644
--- a/src/app/player/components/channel-list-container/channel-list-container.component.html
+++ b/src/app/player/components/channel-list-container/channel-list-container.component.html
@@ -98,28 +98,28 @@
             </div>
         </ng-template>
         <mat-nav-list
+            cdkDropList
             *ngIf="favorites$ | async as favorites"
+            (cdkDropListDropped)="drop($event, favorites)"
             id="favorites-list"
         >
             <ng-container *ngIf="favorites.length > 0; else noFavorites">
-                <ng-container *ngFor="let channel of favorites; index as i">
-                    <app-channel-list-item
-                        [name]="
-                            i +
-                            1 +
-                            '. ' +
-                            (channel?.name || 'CHANNELS.UNNAMED_CHANNEL'
-                                | translate)
-                        "
-                        [logo]="channel?.tvg?.logo"
-                        (clicked)="selectChannel(channel)"
-                        [selected]="selected?.id === channel.id"
-                        [showFavoriteButton]="true"
-                        (favoriteToggled)="
-                            toggleFavoriteChannel(channel, $event)
-                        "
-                    ></app-channel-list-item>
-                </ng-container>
+                <app-channel-list-item
+                    *ngFor="let channel of favorites; index as i"
+                    [name]="
+                        i +
+                        1 +
+                        '. ' +
+                        (channel?.name || 'CHANNELS.UNNAMED_CHANNEL'
+                            | translate)
+                    "
+                    [isDraggable]="true"
+                    [logo]="channel?.tvg?.logo"
+                    (clicked)="selectChannel(channel)"
+                    [selected]="selected?.id === channel.id"
+                    [showFavoriteButton]="true"
+                    (favoriteToggled)="toggleFavoriteChannel(channel, $event)"
+                ></app-channel-list-item>
             </ng-container>
             <ng-template #noFavorites>
                 <mat-list-item
diff --git a/src/app/player/components/channel-list-container/channel-list-container.component.ts b/src/app/player/components/channel-list-container/channel-list-container.component.ts
index f63255943..c34450c1a 100644
--- a/src/app/player/components/channel-list-container/channel-list-container.component.ts
+++ b/src/app/player/components/channel-list-container/channel-list-container.component.ts
@@ -1,3 +1,4 @@
+import { CdkDragDrop, moveItemInArray } from '@angular/cdk/drag-drop';
 import {
     Component,
     ElementRef,
@@ -11,7 +12,6 @@ import { TranslateService } from '@ngx-translate/core';
 import * as _ from 'lodash';
 import { map, skipWhile } from 'rxjs';
 import { Channel } from '../../../../../shared/channel.interface';
-import { PlaylistsService } from '../../../services/playlists.service';
 import * as PlaylistActions from '../../../state/actions';
 import {
     selectActivePlaylistId,
@@ -73,15 +73,16 @@ export class ChannelListContainerComponent {
     favorites$ = this.store
         .select(selectFavorites)
         .pipe(
-            map((favorites) =>
-                this.channelList.filter((channel) =>
-                    favorites.includes(channel.id)
+            map((favoriteChannelIds) =>
+                favoriteChannelIds.map((favoriteChannelId) =>
+                    this.channelList.find(
+                        (channel) => channel.id === favoriteChannelId
+                    )
                 )
             )
         );
 
     constructor(
-        private playlistService: PlaylistsService,
         private readonly store: Store,
         private snackBar: MatSnackBar,
         private translateService: TranslateService
@@ -119,4 +120,14 @@ export class ChannelListContainerComponent {
     trackByFn(index: number, channel: Channel): string {
         return channel.id;
     }
+
+    drop(event: CdkDragDrop<Channel[]>, favorites: Channel[]) {
+        moveItemInArray(favorites, event.previousIndex, event.currentIndex);
+        console.log(favorites);
+        this.store.dispatch(
+            PlaylistActions.setFavorites({
+                channelIds: favorites.map((item) => item.id),
+            })
+        );
+    }
 }
diff --git a/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.scss b/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.scss
index b4f916cc1..80e7e5204 100644
--- a/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.scss
+++ b/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.scss
@@ -24,3 +24,8 @@
         }
     }
 }
+
+.drag-icon {
+    cursor: move;
+    margin-left: -20px;
+}
diff --git a/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.ts b/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.ts
index 1682c97aa..ae2587088 100644
--- a/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.ts
+++ b/src/app/player/components/channel-list-container/channel-list-item/channel-list-item.component.ts
@@ -4,10 +4,20 @@ import { Component, EventEmitter, Input, Output } from '@angular/core';
     selector: 'app-channel-list-item',
     styleUrls: ['./channel-list-item.component.scss'],
     template: `<mat-list-item
+        cdkDrag
+        [cdkDragDisabled]="!isDraggable"
+        cdkDragPreviewContainer="parent"
         [class.active]="selected"
         (click)="clicked.emit()"
         data-test-id="channel-item"
     >
+        <mat-icon
+            *ngIf="isDraggable"
+            mat-list-icon
+            cdkDragHandle
+            class="drag-icon"
+            >drag_indicator</mat-icon
+        >
         <div class="channel-logo" *ngIf="logo">
             <img [src]="logo" width="48" onerror="this.style.display='none'" />
         </div>
@@ -27,6 +37,7 @@ import { Component, EventEmitter, Input, Output } from '@angular/core';
     ></mat-list-item>`,
 })
 export class ChannelListItemComponent {
+    @Input() isDraggable = false;
     @Input() logo!: string;
     @Input() name = '';
     @Input() showFavoriteButton = false;
diff --git a/src/app/services/playlists.service.ts b/src/app/services/playlists.service.ts
index ff14a543b..dddc92e1e 100644
--- a/src/app/services/playlists.service.ts
+++ b/src/app/services/playlists.service.ts
@@ -180,4 +180,15 @@ export class PlaylistsService {
             })
         );
     }
+
+    setFavorites(playlistId: string, favorites: string[]) {
+        return this.getPlaylistById(playlistId).pipe(
+            switchMap((playlist) =>
+                this.dbService.update(DbStores.Playlists, {
+                    ...playlist,
+                    favorites,
+                })
+            )
+        );
+    }
 }
diff --git a/src/app/shared/shared.module.ts b/src/app/shared/shared.module.ts
index fba8db075..0c1c4490e 100644
--- a/src/app/shared/shared.module.ts
+++ b/src/app/shared/shared.module.ts
@@ -34,6 +34,7 @@ import { MomentDatePipe } from './pipes/moment-date.pipe';
         }),
     ],
     exports: [
+        DragDropModule,
         FilterPipe,
         FormsModule,
         HeaderComponent,
diff --git a/src/app/state/actions.ts b/src/app/state/actions.ts
index dd5a62a10..b9c5e6b40 100644
--- a/src/app/state/actions.ts
+++ b/src/app/state/actions.ts
@@ -66,6 +66,11 @@ export const updateFavorites = createAction(
     props<{ channel: Channel }>()
 );
 
+export const setFavorites = createAction(
+    `${STORE_KEY} Set favorites`,
+    props<{ channelIds: string[] }>()
+);
+
 export const setActiveChannel = createAction(
     `${STORE_KEY} Set active channel`,
     props<{ channel: Channel }>()
diff --git a/src/app/state/effects.ts b/src/app/state/effects.ts
index 6e02750af..e4346b9b0 100644
--- a/src/app/state/effects.ts
+++ b/src/app/state/effects.ts
@@ -35,6 +35,24 @@ export class PlaylistEffects {
         { dispatch: false }
     );
 
+    setFavorites$ = createEffect(
+        () => {
+            return this.actions$.pipe(
+                ofType(PlaylistActions.setFavorites),
+                combineLatestWith(this.store.select(selectActivePlaylistId)),
+                switchMap(([action, playlistId]) =>
+                    this.playlistsService.setFavorites(
+                        playlistId,
+                        action.channelIds
+                    )
+                )
+            );
+        },
+        {
+            dispatch: false,
+        }
+    );
+
     setActiveChannel$ = createEffect(() => {
         return this.actions$.pipe(
             ofType(PlaylistActions.setActiveChannel),
diff --git a/src/app/state/reducers.ts b/src/app/state/reducers.ts
index b4c76a26f..cb99c3b4c 100644
--- a/src/app/state/reducers.ts
+++ b/src/app/state/reducers.ts
@@ -79,6 +79,22 @@ export const playlistReducer = createReducer(
             },
         };
     }),
+    on(PlaylistActions.setFavorites, (state, action): PlaylistState => {
+        const { channelIds } = action;
+        return {
+            ...state,
+            playlists: {
+                ...state.playlists,
+                entities: {
+                    ...state.playlists.entities,
+                    [state.playlists.selectedId]: {
+                        ...state.playlists.entities[state.playlists.selectedId],
+                        favorites: channelIds,
+                    },
+                },
+            },
+        };
+    }),
     on(PlaylistActions.loadPlaylistsSuccess, (state, action): PlaylistState => {
         return {
             ...state,