csai_sdk 0.2.0

Client-Side Ad Insertion (CSAI) SDK for Flutter with VAST 4.0 support, HLS/MPEG-DASH streaming, and seamless ad insertion.

example/lib/main.dart

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

void main() {
  runApp(const CsaiSdkExampleApp());
}

class CsaiSdkExampleApp extends StatelessWidget {
  const CsaiSdkExampleApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'CSAI SDK Example',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const CsaiSdkExampleHome(),
    );
  }
}

class CsaiSdkExampleHome extends StatefulWidget {
  const CsaiSdkExampleHome({Key? key}) : super(key: key);

  @override
  State<CsaiSdkExampleHome> createState() => _CsaiSdkExampleHomeState();
}

class _CsaiSdkExampleHomeState extends State<CsaiSdkExampleHome> {
  String _adRequestResult = 'Tap button to generate Ad Request';
  String _vastResponseResult = 'Tap button to get VAST Response';
  bool _isLoading = false;

  @override
  void initState() {
    super.initState();
    _setupListeners();
  }

  /// Setup SCTE-35 and Ad Event listeners
  void _setupListeners() {
    // Listen to SCTE-35 cues
    CsaiSdk.setScte35Listener((cue) {
      _showSnackBar(
          'SCTE-35 Cue: eventId=${cue.eventId}, duration=${cue.duration}ms');
    });

    // Listen to Ad events
    CsaiSdk.setAdEventListener((event) {
      _showSnackBar('Ad Event: ${event.eventType} - ${event.adTitle}');
    });
  }

  /// Generate Ad Request
  Future<void> _generateAdRequest() async {
    setState(() => _isLoading = true);

    try {
      final response = await CsaiSdk.generateAdRequest({
        'deviceId': 'device_12345',
        'operatorId': 'operator_001',
        'channelId': 'ch_001',
        'channelName': 'Channel 1',
        'channelGenre': 'news',
        'adBlockDuration': '60',
      });

      setState(() {
        _adRequestResult = 'Ad Request Generated:\n'
            'Device: ${response['deviceId']}\n'
            'Operator: ${response['operatorId']}\n'
            'Channel: ${response['channelId']}\n'
            'Timestamp: ${response['timestamp']}';
      });

      _showSnackBar('Ad Request generated successfully');
    } catch (e) {
      setState(() => _adRequestResult = 'Error: $e');
      _showSnackBar('Error: $e');
    } finally {
      setState(() => _isLoading = false);
    }
  }

  /// Get VAST Response
  Future<void> _getVastResponse() async {
    setState(() => _isLoading = true);

    try {
      // Create Ad Request
      final adRequest = AdRequest(
        deviceId: 'device_12345',
        operatorId: 'operator_001',
        channelId: 'ch_001',
        channelName: 'Channel 1',
        channelGenre: 'news',
        adBlockDuration: 60,
      );

      // Get VAST Response
      final vastUrl = await CsaiSdk.getVastResponse(adRequest.toJsonString());

      setState(() {
        _vastResponseResult = 'VAST Response:\n'
            'URL: $vastUrl';
      });

      _showSnackBar('VAST Response received');
    } catch (e) {
      setState(() => _vastResponseResult = 'Error: $e');
      _showSnackBar('Error: $e');
    } finally {
      setState(() => _isLoading = false);
    }
  }

  /// Send Ad Report
  Future<void> _sendReport() async {
    setState(() => _isLoading = true);

    try {
      // Create Ad Report
      final report = AdReport(
        adBlockId: 'adblock_001',
        duration: 60,
        status: AdPlaybackStatus.completed,
        playbackInfo: [
          AdPlaybackInfo(
            adId: 'ad_001',
            title: 'Sample Ad',
            playbackDuration: 10.5,
            status: AdPlaybackStatus.completed,
          ),
        ],
      );

      // Send Report
      final success = await CsaiSdk.sendReport(report.toJsonString());

      if (success) {
        _showSnackBar('Report sent successfully');
      } else {
        _showSnackBar('Failed to send report');
      }
    } catch (e) {
      _showSnackBar('Error: $e');
    } finally {
      setState(() => _isLoading = false);
    }
  }

  void _showSnackBar(String message) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(content: Text(message), duration: const Duration(seconds: 2)),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('CSAI SDK Example')),
      body: _isLoading
          ? const Center(child: CircularProgressIndicator())
          : SingleChildScrollView(
              padding: const EdgeInsets.all(16.0),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.stretch,
                children: [
                  // Ad Request Section
                  Card(
                    child: Padding(
                      padding: const EdgeInsets.all(16.0),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          const Text(
                            'Ad Request',
                            style: TextStyle(
                              fontSize: 18,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                          const SizedBox(height: 16),
                          Text(_adRequestResult),
                          const SizedBox(height: 16),
                          ElevatedButton.icon(
                            onPressed: _generateAdRequest,
                            icon: const Icon(Icons.send),
                            label: const Text('Generate Ad Request'),
                          ),
                        ],
                      ),
                    ),
                  ),
                  const SizedBox(height: 16),

                  // VAST Response Section
                  Card(
                    child: Padding(
                      padding: const EdgeInsets.all(16.0),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          const Text(
                            'VAST Response',
                            style: TextStyle(
                              fontSize: 18,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                          const SizedBox(height: 16),
                          Text(_vastResponseResult),
                          const SizedBox(height: 16),
                          ElevatedButton.icon(
                            onPressed: _getVastResponse,
                            icon: const Icon(Icons.cloud_download),
                            label: const Text('Get VAST Response'),
                          ),
                        ],
                      ),
                    ),
                  ),
                  const SizedBox(height: 16),

                  // Send Report Section
                  Card(
                    child: Padding(
                      padding: const EdgeInsets.all(16.0),
                      child: Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          const Text(
                            'Ad Report',
                            style: TextStyle(
                              fontSize: 18,
                              fontWeight: FontWeight.bold,
                            ),
                          ),
                          const SizedBox(height: 16),
                          const Text('Send playback report to CSAI Platform'),
                          const SizedBox(height: 16),
                          ElevatedButton.icon(
                            onPressed: _sendReport,
                            icon: const Icon(Icons.upload),
                            label: const Text('Send Report'),
                          ),
                        ],
                      ),
                    ),
                  ),
                ],
              ),
            ),
    );
  }
}