// Patch the freshly-generated Capacitor iOS AppDelegate for call audio. Run on Codemagic (macOS) from
// ios-patch.sh:   node mobile/scripts/inject-audio.js mobile/ios/App/App/AppDelegate.swift
// It does two things, both TOLERANT (exits 0 and no-ops if the template doesn't match, so it can NEVER
// fail the build):
//   1. At launch, set the AVAudioSession so calls DEFAULT to the loudspeaker (iOS uses the quiet earpiece).
//   2. Append an AudioRoute Capacitor plugin (Capacitor 7 auto-registers any CAPBridgedPlugin in the app
//      target) so the web can switch earpiece<->speaker at runtime via
//      window.Capacitor.Plugins.AudioRoute.setSpeaker({ on: true|false }).
// If the plugin fails to register for any reason, the web call simply no-ops — it cannot crash the app.
const fs = require('fs');
const p = process.argv[2];
if (!p || !fs.existsSync(p)) { console.log('  (AppDelegate.swift not found — audio patch skipped)'); process.exit(0); }
try {
  let s = fs.readFileSync(p, 'utf8');
  if (s.includes('AudioRoutePlugin')) { console.log('  audio already patched'); process.exit(0); }
  const orig = s;

  // ---- imports ----
  if (!s.includes('import AVFoundation')) {
    if (s.includes('import Capacitor')) s = s.replace('import Capacitor', 'import Capacitor\nimport AVFoundation');
    else if (s.includes('import UIKit')) s = s.replace('import UIKit', 'import UIKit\nimport AVFoundation');
  }
  if (!s.includes('import Capacitor')) {
    if (s.includes('import UIKit')) s = s.replace('import UIKit', 'import UIKit\nimport Capacitor');
  }

  // ---- 1) launch: default call audio to the loudspeaker ----
  const launch = [
    '        // Default call audio to the loudspeaker (iOS uses the quiet earpiece otherwise).',
    '        do {',
    '            let audioSession = AVAudioSession.sharedInstance()',
    '            try audioSession.setCategory(.playAndRecord, mode: .voiceChat, options: [.defaultToSpeaker, .allowBluetooth, .allowBluetoothA2DP])',
    '            try audioSession.setActive(true)',
    '        } catch { }',
    '',
  ].join('\n');
  const m = s.match(/func\s+application\([^)]*didFinishLaunchingWithOptions[^)]*\)\s*->\s*Bool\s*\{[^\n]*\n/);
  if (m && !s.includes('.defaultToSpeaker')) { const idx = m.index + m[0].length; s = s.slice(0, idx) + launch + s.slice(idx); }

  // ---- 2) append the AudioRoute plugin (earpiece/speaker toggle) ----
  const plugin = [
    '',
    '// Earpiece <-> speaker toggle for calls. Capacitor 7 auto-registers any CAPBridgedPlugin in the app',
    '// target, so the web calls window.Capacitor.Plugins.AudioRoute.setSpeaker({ on: true|false }).',
    '@objc(AudioRoutePlugin)',
    'public class AudioRoutePlugin: CAPPlugin, CAPBridgedPlugin {',
    '    public let identifier = "AudioRoutePlugin"',
    '    public let jsName = "AudioRoute"',
    '    public let pluginMethods: [CAPPluginMethod] = [',
    '        CAPPluginMethod(name: "setSpeaker", returnType: CAPPluginReturnPromise)',
    '    ]',
    '    @objc func setSpeaker(_ call: CAPPluginCall) {',
    '        let on = call.getBool("on") ?? true',
    '        let session = AVAudioSession.sharedInstance()',
    '        do {',
    '            try session.setCategory(.playAndRecord, mode: .voiceChat, options: [.allowBluetooth, .allowBluetoothA2DP])',
    '            try session.setActive(true)',
    '            try session.overrideOutputAudioPort(on ? .speaker : .none)',
    '            call.resolve(["route": on ? "speaker" : "earpiece"])',
    '        } catch {',
    '            call.reject(error.localizedDescription)',
    '        }',
    '    }',
    '}',
    '',
  ].join('\n');
  s = s + plugin;

  if (s !== orig) { fs.writeFileSync(p, s); console.log('  AVAudioSession default-to-speaker + AudioRoute plugin injected'); }
  else { console.log('  (AppDelegate pattern not matched — audio patch skipped)'); }
} catch (e) {
  console.log('  (audio patch error, skipped: ' + (e && e.message) + ')');
}
process.exit(0);