feat(displays): add display detection and management (sway) with daemon APIs and UI controls

ecoos_daemon/ts/daemon/process-manager.ts

@@ -5,6 +5,7 @@
  */
 
 import { runCommand } from '../utils/command.ts';
+import type { DisplayInfo } from './system-info.ts';
 
 export interface SwayConfig {
   runtimeDir: string;
@@ -306,6 +307,95 @@ for_window [app_id="chromium-browser"] fullscreen enable
     }
   }
 
+  /**
+   * Get connected displays via swaymsg
+   */
+  async getDisplays(config: { runtimeDir: string; waylandDisplay: string }): Promise<DisplayInfo[]> {
+    const env: Record<string, string> = {
+      XDG_RUNTIME_DIR: config.runtimeDir,
+      WAYLAND_DISPLAY: config.waylandDisplay,
+    };
+
+    const envString = Object.entries(env)
+      .map(([k, v]) => `${k}=${v}`)
+      .join(' ');
+
+    const cmd = new Deno.Command('runuser', {
+      args: ['-u', this.user, '--', 'sh', '-c', `${envString} swaymsg -t get_outputs`],
+      stdout: 'piped',
+      stderr: 'piped',
+    });
+
+    try {
+      const result = await cmd.output();
+      if (!result.success) {
+        console.error('[displays] Failed to get outputs');
+        return [];
+      }
+
+      const outputs = JSON.parse(new TextDecoder().decode(result.stdout));
+      return outputs.map((output: {
+        name: string;
+        make: string;
+        model: string;
+        serial: string;
+        active: boolean;
+        current_mode?: { width: number; height: number; refresh: number };
+        focused: boolean;
+      }) => ({
+        name: output.name,
+        make: output.make || 'Unknown',
+        model: output.model || 'Unknown',
+        serial: output.serial || '',
+        active: output.active,
+        width: output.current_mode?.width || 0,
+        height: output.current_mode?.height || 0,
+        refreshRate: Math.round((output.current_mode?.refresh || 0) / 1000),
+        isPrimary: output.focused,
+      }));
+    } catch (error) {
+      console.error(`[displays] Error: ${error}`);
+      return [];
+    }
+  }
+
+  /**
+   * Enable or disable a display
+   */
+  async setDisplayEnabled(
+    config: { runtimeDir: string; waylandDisplay: string },
+    name: string,
+    enabled: boolean
+  ): Promise<boolean> {
+    const command = `output ${name} ${enabled ? 'enable' : 'disable'}`;
+    console.log(`[displays] ${command}`);
+    return this.swaymsg(config, command);
+  }
+
+  /**
+   * Move the kiosk browser to a specific display
+   */
+  async setKioskDisplay(
+    config: { runtimeDir: string; waylandDisplay: string },
+    name: string
+  ): Promise<boolean> {
+    console.log(`[displays] Setting primary display to ${name}`);
+
+    // Focus the chromium window and move it to the target output
+    const commands = [
+      `[app_id="chromium-browser"] focus`,
+      `move container to output ${name}`,
+      `focus output ${name}`,
+      `[app_id="chromium-browser"] fullscreen enable`,
+    ];
+
+    for (const cmd of commands) {
+      await this.swaymsg(config, cmd);
+    }
+
+    return true;
+  }
+
   private async pipeOutput(
     process: Deno.ChildProcess,
     name: string