import 'package:flutter/material.dart';
import 'package:get/get.dart';

import '../controllers/speech_test_controller.dart';
import '../../../data/services/speech_factory.dart';

class SpeechTestView extends GetView<SpeechTestController> {
  const SpeechTestView({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('语音测试'),
        actions: [
          IconButton(
            icon: const Icon(Icons.refresh),
            onPressed: () => controller.switchServiceType(controller.selectedServiceType.value),
            tooltip: '重新初始化',
          ),
        ],
      ),
      body: Obx(() {
        return controller.isInitialized.value
            ? _buildTestContent()
            : _buildLoadingView();
      }),
    );
  }

  Widget _buildLoadingView() {
    return const Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          CircularProgressIndicator(),
          SizedBox(height: 16),
          Text('初始化语音服务中...'),
        ],
      ),
    );
  }

  Widget _buildTestContent() {
    return SingleChildScrollView(
      padding: const EdgeInsets.all(16),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.stretch,
        children: [
          _buildServiceTypeSelector(),
          const SizedBox(height: 24),
          _buildTtsSection(),
          const SizedBox(height: 24),
          const Divider(),
          const SizedBox(height: 24),
          _buildAsrSection(),
        ],
      ),
    );
  }

  Widget _buildServiceTypeSelector() {
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const Text(
              '选择语音服务',
              style: TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.bold,
              ),
            ),
            const SizedBox(height: 16),
            Obx(() {
              return Wrap(
                spacing: 8,
                children: [
                  for (final type in SpeechServiceType.values)
                    ChoiceChip(
                      label: Text(_getServiceTypeName(type)),
                      selected: controller.selectedServiceType.value == type,
                      onSelected: (selected) {
                        if (selected) {
                          controller.switchServiceType(type);
                        }
                      },
                    ),
                ],
              );
            }),
          ],
        ),
      ),
    );
  }

  String _getServiceTypeName(SpeechServiceType type) {
    switch (type) {
      case SpeechServiceType.azure:
        return 'Azure语音';
      case SpeechServiceType.iflytek:
        return '讯飞语音';
      case SpeechServiceType.google:
        return 'Google语音';
      case SpeechServiceType.alibaba:
        return '阿里语音';
      case SpeechServiceType.volcano:
        return '豆包语音';
      case SpeechServiceType.flutter:
        return 'Flutter本地';
    }
  }

  Widget _buildTtsSection() {
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const Text(
              '语音合成测试',
              style: TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.bold,
              ),
            ),
            const SizedBox(height: 16),
            TextField(
              controller: controller.textController,
              decoration: const InputDecoration(
                labelText: '输入要合成的文本',
                border: OutlineInputBorder(),
              ),
              maxLines: 3,
            ),
            const SizedBox(height: 16),
            Obx(() {
              return Text(
                '状态: ${controller.ttsStatus}',
                style: TextStyle(
                  color: _getStatusColor(controller.ttsStatus.value),
                  fontWeight: FontWeight.bold,
                ),
              );
            }),
            const SizedBox(height: 16),
            Wrap(
              spacing: 8,
              runSpacing: 8,
              alignment: WrapAlignment.center,
              children: [
                Obx(() {
                  return ElevatedButton.icon(
                    icon: const Icon(Icons.play_arrow),
                    label: const Text('单次播放'),
                    onPressed: controller.isProcessing.value ||
                            controller.isSpeaking.value
                        ? null
                        : controller.speakOnce,
                  );
                }),
                Obx(() {
                  return ElevatedButton.icon(
                    icon: const Icon(Icons.playlist_play),
                    label: const Text('连续播放测试'),
                    onPressed: controller.isProcessing.value ||
                            controller.isSpeaking.value
                        ? null
                        : controller.speakContinuously,
                  );
                }),
                Obx(() {
                  return ElevatedButton.icon(
                    icon: const Icon(Icons.stop),
                    label: const Text('停止'),
                    onPressed: controller.isSpeaking.value
                        ? controller.stopSpeaking
                        : null,
                  );
                }),
              ],
            ),
            const SizedBox(height: 8),
            const Divider(),
            const SizedBox(height: 8),
            const Text(
              '连续播放测试会依次播放以下句子:',
              style: TextStyle(fontWeight: FontWeight.bold),
            ),
            const SizedBox(height: 8),
            for (int i = 0; i < controller.testSentences.length; i++)
              Padding(
                padding: const EdgeInsets.symmetric(vertical: 4),
                child: Text('${i + 1}. ${controller.testSentences[i]}'),
              ),
          ],
        ),
      ),
    );
  }

  Widget _buildAsrSection() {
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const Text(
              '语音识别测试',
              style: TextStyle(
                fontSize: 18,
                fontWeight: FontWeight.bold,
              ),
            ),
            const SizedBox(height: 16),
            Obx(() {
              return Text(
                '状态: ${controller.recognitionStatus}',
                style: TextStyle(
                  color: _getStatusColor(controller.recognitionStatus.value),
                  fontWeight: FontWeight.bold,
                ),
              );
            }),
            const SizedBox(height: 8),
            Obx(() {
              final hasLanguage = controller.detectedLanguage.value.isNotEmpty;
              return Visibility(
                visible: hasLanguage,
                child: Padding(
                  padding: const EdgeInsets.only(bottom: 8),
                  child: Text(
                    '检测语言: ${controller.detectedLanguage.value}',
                    style: const TextStyle(
                      fontStyle: FontStyle.italic,
                      color: Colors.blue,
                    ),
                  ),
                ),
              );
            }),
            const SizedBox(height: 8),
            Container(
              padding: const EdgeInsets.all(16),
              decoration: BoxDecoration(
                border: Border.all(color: Colors.grey),
                borderRadius: BorderRadius.circular(8),
              ),
              constraints: const BoxConstraints(minHeight: 100),
              width: double.infinity,
              child: Obx(() {
                final displayText = controller.getDisplayResult();
                return RichText(
                  text: TextSpan(
                    style: const TextStyle(fontSize: 16, color: Colors.black),
                    children: [
                      if (displayText.isEmpty)
                        const TextSpan(
                          text: '识别结果将显示在这里',
                          style: TextStyle(color: Colors.grey, fontStyle: FontStyle.italic),
                        )
                      else if (displayText.contains('正在识别:'))
                        TextSpan(
                          text: displayText.split('正在识别:')[0],
                          children: [
                            const TextSpan(
                              text: '\n\n正在识别: ',
                              style: TextStyle(
                                color: Colors.blue,
                                fontWeight: FontWeight.bold,
                                fontStyle: FontStyle.italic,
                              ),
                            ),
                            TextSpan(
                              text: displayText.split('正在识别:')[1].trim(),
                              style: const TextStyle(
                                color: Colors.blue,
                                fontStyle: FontStyle.italic,
                              ),
                            ),
                          ],
                        )
                      else
                        TextSpan(text: displayText),
                    ],
                  ),
                );
              }),
            ),
            const SizedBox(height: 16),
            Wrap(
              spacing: 8,
              runSpacing: 8,
              alignment: WrapAlignment.center,
              children: [
                Obx(() {
                  return ElevatedButton.icon(
                    icon: const Icon(Icons.mic),
                    label: const Text('一次性识别'),
                    onPressed: controller.isProcessing.value ||
                            controller.isListening.value ||
                            controller.isSpeaking.value
                        ? null
                        : controller.recognizeOnce,
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Colors.green,
                    ),
                  );
                }),
                Obx(() {
                  return ElevatedButton.icon(
                    icon: Icon(
                      controller.isListening.value
                          ? Icons.mic_off
                          : Icons.mic_none,
                    ),
                    label: Text(
                      controller.isListening.value ? '停止连续识别' : '开始连续识别',
                    ),
                    onPressed: controller.isProcessing.value ||
                            controller.isSpeaking.value
                        ? null
                        : controller.isListening.value
                            ? controller.stopContinuousRecognition
                            : controller.startContinuousRecognition,
                    style: ElevatedButton.styleFrom(
                      backgroundColor: controller.isListening.value
                          ? Colors.red
                          : Colors.blue,
                    ),
                  );
                }),
              ],
            ),
          ],
        ),
      ),
    );
  }

  Color _getStatusColor(String status) {
    if (status.contains('错误') || status.contains('失败')) {
      return Colors.red;
    } else if (status.contains('完成') || status.contains('就绪')) {
      return Colors.green;
    } else if (status.contains('正在')) {
      return Colors.blue;
    } else {
      return Colors.black;
    }
  }
}