feat: basic keyboard manager

src/classes/KeyboardManager.ts

@@ -0,0 +1,76 @@
+import TV from './tv';
+
+export default class KeyboardManager {
+  row: number;
+  col: number;
+  tv: TV;
+  modifiers: string[];
+  keyboard = [
+    ['q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p'],
+    ['a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ','],
+    ['Shift', 'z', 'x', 'c', 'v', 'b', 'n', 'm', '.', 'Backspace'],
+    ['Special', 'Left', 'Right', ' ', ' ', ' ', '-', '_', 'Enter', 'Enter'],
+  ];
+
+  constructor(tv: TV) {
+    this.row = 0;
+    this.col = 0;
+    this.modifiers = [];
+    this.tv = tv;
+  }
+
+  async send(input: string): Promise<void> {
+    const characters = input.split('');
+    for (const char of characters) {
+      await this.sendKey(char);
+    }
+  }
+
+  reset(): void {
+    this.row = 0;
+    this.col = 0;
+    this.modifiers = [];
+  }
+
+  async sendKey(key: string): Promise<void> {
+    const [row, col] = this.keyToRowCol(key);
+    await this.setCol(col);
+    await this.setRow(row);
+    await this.tv.ok();
+  }
+
+  keyToRowCol(key: string): [number, number] {
+    let row = 0;
+    let col = 0;
+    for (let i = 0; i < this.keyboard.length; i++) {
+      const rowKeys = this.keyboard[i];
+      for (let j = 0; j < rowKeys.length; j++) {
+        if (rowKeys[j] === key) {
+          row = i;
+          col = j;
+          break;
+        }
+      }
+    }
+    return [row, col];
+  }
+  async setRow(row: number): Promise<void> {
+    const diff = row - this.row;
+    if (diff > 0) {
+      await this.tv.down(diff);
+    } else if (diff < 0) {
+      await this.tv.up(-diff);
+    }
+    this.row = row;
+  }
+
+  async setCol(col: number): Promise<void> {
+    const diff = col - this.col;
+    if (diff > 0) {
+      await this.tv.right(diff);
+    } else if (diff < 0) {
+      await this.tv.left(-diff);
+    }
+    this.col = col;
+  }
+}

src/classes/tv.ts

@@ -1,12 +1,16 @@
+import KeyboardManager from './KeyboardManager';
+
 require('isomorphic-fetch');
 
 export default class TV {
   ip: string;
   backendURL: string;
+  keyboard: KeyboardManager;
 
   constructor(ip: string) {
     this.ip = ip;
     this.backendURL = process.env.SONY_BACKEND_URL || 'http://localhost:3000';
+    this.keyboard = new KeyboardManager(this);
   }
 
   sendIRCC(command: string, times?: number): Promise<Response[]> {