Rewrite task queue and action queue

src/Action/UpgradeBuildingAction.ts

@@ -1,9 +1,11 @@
 import Action from './Action';
+import { Args } from '../Common';
+import { TryLaterError } from '../Errors';
 
 export default class UpgradeBuildingAction extends Action {
     static NAME = 'upgrade_building';
 
-    async run(args): Promise<any> {
+    async run(args: Args): Promise<any> {
         const btn = jQuery(
             '.upgradeButtonsContainer .section1 button.green.build'
         );
@@ -11,6 +13,7 @@ export default class UpgradeBuildingAction extends Action {
             btn.trigger('click');
         } else {
             console.log('NO UPGRADE BUTTON');
+            throw new TryLaterError(60);
         }
         return null;
     }

src/Common.ts

@@ -0,0 +1,13 @@
+export interface Args {
+    [name: string]: any;
+}
+
+export class Command {
+    readonly name: string;
+    readonly args: Args;
+
+    constructor(name: string, args: Args) {
+        this.name = name;
+        this.args = args;
+    }
+}

src/Dashboard.ts

@@ -1,9 +1,9 @@
 import * as URLParse from 'url-parse';
 import { markPage, sleepShort } from './utils';
 import { v4 as uuid } from 'uuid';
-import { QueueItem } from './Queue';
 import Scheduler from './Scheduler';
 import UpgradeBuildingTask from './Task/UpgradeBuildingTask';
+import { Command } from './Common';
 
 export default class Dashboard {
     private scheduler: Scheduler;
@@ -27,7 +27,7 @@ export default class Dashboard {
                 `<div style="padding: 8px"><a id="${id}" href="#">В очередь</a></div>`
             );
             jQuery(`#${id}`).on('click', () => {
-                const queueItem = new QueueItem(UpgradeBuildingTask.NAME, {
+                const queueItem = new Command(UpgradeBuildingTask.NAME, {
                     id: p.query['id'],
                 });
                 this.scheduler.pushTask(queueItem);

src/Errors.ts

@@ -0,0 +1,7 @@
+export class TryLaterError extends Error {
+    readonly seconds: number;
+    constructor(s: number) {
+        super();
+        this.seconds = s;
+    }
+}

src/Queue.ts

@@ -1,52 +0,0 @@
-export class QueueItem {
-    readonly name: string;
-
-    readonly args;
-
-    constructor(name: string, args: { [name: string]: any }) {
-        this.name = name;
-        this.args = args;
-    }
-}
-
-export class Queue {
-    private readonly name;
-
-    constructor(name: string) {
-        this.name = name;
-    }
-
-    pop() {
-        const serialized = localStorage.getItem(this.name);
-        if (serialized === null) {
-            return null;
-        }
-        const items = JSON.parse(serialized) as Array<QueueItem>;
-        if (items.length === 0) {
-            return null;
-        }
-        const first = items.shift();
-
-        this.flush(items);
-
-        if (first === undefined) {
-            return null;
-        }
-
-        return new QueueItem(first.name || '', first.args || {});
-    }
-
-    push(item: QueueItem): void {
-        const serialized = localStorage.getItem(this.name);
-        const items = serialized
-            ? (JSON.parse(serialized) as Array<QueueItem>)
-            : [];
-        items.push(item);
-        this.flush(items);
-    }
-
-    private flush(items) {
-        console.log('SET NEW QUEUE', this.name, items);
-        localStorage.setItem(this.name, JSON.stringify(items));
-    }
-}

src/Scheduler.ts

@@ -1,19 +1,19 @@
 import { markPage, sleepLong, sleepShort } from './utils';
-import { Queue, QueueItem } from './Queue';
 import UpgradeBuildingTask from './Task/UpgradeBuildingTask';
 import GoToBuildingAction from './Action/GoToBuildingAction';
 import UpgradeBuildingAction from './Action/UpgradeBuildingAction';
-
-const ACTION_QUEUE = 'action_queue';
-const TASK_QUEUE = 'task_queue';
+import { TryLaterError } from './Errors';
+import TaskQueue from './Storage/TaskQueue';
+import ActionQueue from './Storage/ActionQueue';
+import { Args, Command } from './Common';
 
 export default class Scheduler {
-    taskQueue: Queue;
-    actionQueue: Queue;
+    taskQueue: TaskQueue;
+    actionQueue: ActionQueue;
 
     constructor() {
-        this.taskQueue = new Queue(TASK_QUEUE);
-        this.actionQueue = new Queue(ACTION_QUEUE);
+        this.taskQueue = new TaskQueue();
+        this.actionQueue = new ActionQueue();
     }
 
     async run() {
@@ -27,7 +27,7 @@ export default class Scheduler {
                 const action = this.createAction(actionItem);
                 this.log('POP ACTION', action);
                 if (action) {
-                    await action.run(actionItem.args);
+                    await this.runAction(action, actionItem.args);
                 }
             } else {
                 const taskItem = this.popTask();
@@ -43,25 +43,25 @@ export default class Scheduler {
         }
     }
 
-    pushTask(task: QueueItem): void {
+    pushTask(task: Command): void {
         this.log('PUSH TASK', task);
         this.taskQueue.push(task);
     }
 
-    pushAction(action: QueueItem): void {
+    pushAction(action: Command): void {
         this.log('PUSH ACTION', action);
         this.actionQueue.push(action);
     }
 
-    private popTask() {
-        const taskItem = this.taskQueue.pop();
-        if (taskItem === null) {
-            return null;
-        }
-        return taskItem;
+    scheduleActions(actions: Array<Command>): void {
+        this.actionQueue.assign(actions);
     }
 
-    private createTask(taskItem: QueueItem) {
+    private popTask(): Command | null {
+        return this.taskQueue.current() || this.taskQueue.next();
+    }
+
+    private createTask(taskItem: Command) {
         switch (taskItem.name) {
             case UpgradeBuildingTask.NAME:
                 return new UpgradeBuildingTask(this);
@@ -72,14 +72,14 @@ export default class Scheduler {
 
     private popAction() {
         const actionItem = this.actionQueue.pop();
-        if (actionItem === null) {
+        if (actionItem === undefined) {
             return null;
         }
         this.log('UNKNOWN ACTION', actionItem.name);
         return actionItem;
     }
 
-    private createAction(actionItem: QueueItem) {
+    private createAction(actionItem: Command) {
         if (actionItem.name === GoToBuildingAction.NAME) {
             return new GoToBuildingAction();
         }
@@ -89,7 +89,18 @@ export default class Scheduler {
         return null;
     }
 
+    private async runAction(action, args: Args) {
+        try {
+            await action.run(args);
+        } catch (e) {
+            console.warn('ACTION ERROR', e);
+            if (e instanceof TryLaterError) {
+                console.warn('TRY AFTER', e.seconds);
+            }
+        }
+    }
+
     private log(...args) {
-        console.log('SCHEDULER', ...args);
+        console.log('SCHEDULER:', ...args);
     }
 }

src/Storage/ActionQueue.ts

@@ -0,0 +1,57 @@
+import { Command } from '../Common';
+
+const QUEUE_NAME = 'action_queue:v2';
+
+class State {
+    items: Array<Command>;
+    constructor(items: Array<Command>) {
+        this.items = items;
+    }
+
+    pop(): Command | undefined {
+        return this.items.shift();
+    }
+
+    push(cmd: Command) {
+        this.items.push(cmd);
+    }
+}
+
+export default class ActionQueue {
+    pop(): Command | undefined {
+        const state = this.getState();
+        const first = state.pop();
+        this.flushState(state);
+        return first;
+    }
+
+    push(cmd: Command): void {
+        const state = this.getState();
+        state.push(cmd);
+        this.flushState(state);
+    }
+
+    assign(items: Array<Command>): void {
+        this.flushState(new State(items));
+    }
+
+    private getState(): State {
+        const serialized = localStorage.getItem(QUEUE_NAME);
+        if (serialized === null) {
+            return new State([]);
+        }
+
+        let parsed = JSON.parse(serialized) as State;
+        this.log('STATE', parsed);
+
+        return new State(parsed.items);
+    }
+
+    private flushState(state: State): void {
+        localStorage.setItem(QUEUE_NAME, JSON.stringify(state));
+    }
+
+    private log(...args) {
+        console.log('ACTION QUEUE:', ...args);
+    }
+}

src/Storage/TaskQueue.ts

@@ -0,0 +1,85 @@
+import { Command } from '../Common';
+
+const QUEUE_NAME = 'task_queue:v2';
+
+class CommandWithTime {
+    readonly cmd: Command;
+    readonly ts: number;
+    constructor(cmd: Command, ts: number) {
+        this.cmd = cmd;
+        this.ts = ts;
+    }
+}
+
+class State {
+    current: CommandWithTime | null;
+    items: Array<CommandWithTime>;
+    constructor(
+        current: CommandWithTime | null,
+        items: Array<CommandWithTime>
+    ) {
+        items.sort((x: CommandWithTime, y: CommandWithTime) => x.ts - y.ts);
+        this.current = current;
+        this.items = items;
+    }
+
+    push(cmd: Command, ts: number): State {
+        const items = this.items.slice();
+        items.push(new CommandWithTime(cmd, ts));
+        return new State(this.current, items);
+    }
+
+    next(): State {
+        const items = this.items.slice();
+        const first = items.shift();
+        if (first === undefined) {
+            return new State(null, []);
+        }
+        return new State(first, items);
+    }
+}
+
+export default class TaskQueue {
+    push(cmd: Command, ts: number | null = null) {
+        this.log('PUSH TASK', cmd, ts);
+        const state = this.getState();
+        this.flushState(state.push(cmd, ts || this.defaultTs()));
+    }
+
+    current(): Command | null {
+        let current = this.getState().current;
+        return current ? current.cmd : null;
+    }
+
+    next(): Command | null {
+        let state = this.getState().next();
+        let current = state.current ? state.current.cmd : null;
+        this.flushState(state);
+        return current;
+    }
+
+    private defaultTs(): number {
+        return Math.floor(Date.now() / 1000);
+    }
+
+    private getState(): State {
+        const serialized = localStorage.getItem(QUEUE_NAME);
+        if (serialized === null) {
+            return new State(null, []);
+        }
+
+        const s = JSON.parse(serialized) as State;
+
+        this.log('STATE', s);
+
+        return new State(s.current, s.items);
+    }
+
+    private flushState(state: State): void {
+        localStorage.setItem(QUEUE_NAME, JSON.stringify(state));
+    }
+
+    private log(...args) {
+        console.log('TASK QUEUE:', ...args);
+    }
+}

src/Task/UpgradeBuildingTask.ts

@@ -1,7 +1,7 @@
 import Scheduler from '../Scheduler';
 import GoToBuildingAction from '../Action/GoToBuildingAction';
 import UpgradeBuildingAction from '../Action/UpgradeBuildingAction';
-import { QueueItem } from '../Queue';
+import { Args, Command } from '../Common';
 
 export default class UpgradeBuildingTask {
     static NAME = 'upgrade_building';
@@ -11,11 +11,11 @@ export default class UpgradeBuildingTask {
         this.scheduler = scheduler;
     }
 
-    run(args) {
+    run(args: Args) {
         console.log('RUN', UpgradeBuildingTask.NAME, 'with', args);
-        this.scheduler.pushAction(new QueueItem(GoToBuildingAction.NAME, args));
-        this.scheduler.pushAction(
-            new QueueItem(UpgradeBuildingAction.NAME, args)
-        );
+        this.scheduler.scheduleActions([
+            new Command(GoToBuildingAction.NAME, args),
+            new Command(UpgradeBuildingAction.NAME, args),
+        ]);
     }
 }