// Copyright 2013 The Flutter Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// ignore_for_file: public_member_api_docs

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

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Path Provider',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const MyHomePage(title: 'Path Provider'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});
  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final PathProviderPlatform provider = PathProviderPlatform.instance;
  Future<String?>? _tempDirectory;
  Future<String?>? _appSupportDirectory;
  Future<String?>? _appDocumentsDirectory;
  Future<String?>? _appCacheDirectory;
  Future<String?>? _externalDocumentsDirectory;
  Future<String?>? _externalDownloadsDirectory;
  Future<List<String>?>? _externalStorageDirectories;
  Future<List<String>?>? _externalCacheDirectories;

  void _requestTempDirectory() {
    setState(() {
      _tempDirectory = provider.getTemporaryPath();
    });
  }

  Widget _buildDirectory(
    BuildContext context,
    AsyncSnapshot<String?> snapshot,
  ) {
    var text = const Text('');
    if (snapshot.connectionState == ConnectionState.done) {
      if (snapshot.hasError) {
        text = Text('Error: ${snapshot.error}');
      } else if (snapshot.hasData) {
        text = Text('path: ${snapshot.data}');
      } else {
        text = const Text('path unavailable');
      }
    }
    return Padding(padding: const EdgeInsets.all(16.0), child: text);
  }

  Widget _buildDirectories(
    BuildContext context,
    AsyncSnapshot<List<String>?> snapshot,
  ) {
    var text = const Text('');
    if (snapshot.connectionState == ConnectionState.done) {
      if (snapshot.hasError) {
        text = Text('Error: ${snapshot.error}');
      } else if (snapshot.hasData) {
        final String combined = snapshot.data!.join(', ');
        text = Text('paths: $combined');
      } else {
        text = const Text('path unavailable');
      }
    }
    return Padding(padding: const EdgeInsets.all(16.0), child: text);
  }

  void _requestAppDocumentsDirectory() {
    setState(() {
      _appDocumentsDirectory = provider.getApplicationDocumentsPath();
    });
  }

  void _requestAppSupportDirectory() {
    setState(() {
      _appSupportDirectory = provider.getApplicationSupportPath();
    });
  }

  void _requestAppCacheDirectory() {
    setState(() {
      _appCacheDirectory = provider.getApplicationCachePath();
    });
  }

  void _requestExternalStorageDirectory() {
    setState(() {
      _externalDocumentsDirectory = provider.getExternalStoragePath();
    });
  }

  void _requestExternalStorageDirectories(StorageDirectory type) {
    setState(() {
      _externalStorageDirectories = provider.getExternalStoragePaths(
        type: type,
      );
    });
  }

  void _requestExternalCacheDirectories() {
    setState(() {
      _externalCacheDirectories = provider.getExternalCachePaths();
    });
  }

  void _requestDownloadsDirectory() {
    setState(() {
      _externalDownloadsDirectory = provider.getDownloadsPath();
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Center(
        child: ListView(
          children: <Widget>[
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: ElevatedButton(
                onPressed: _requestTempDirectory,
                child: const Text('Get Temporary Directory'),
              ),
            ),
            FutureBuilder<String?>(
              future: _tempDirectory,
              builder: _buildDirectory,
            ),
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: ElevatedButton(
                onPressed: _requestAppDocumentsDirectory,
                child: const Text('Get Application Documents Directory'),
              ),
            ),
            FutureBuilder<String?>(
              future: _appDocumentsDirectory,
              builder: _buildDirectory,
            ),
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: ElevatedButton(
                onPressed: _requestAppSupportDirectory,
                child: const Text('Get Application Support Directory'),
              ),
            ),
            FutureBuilder<String?>(
              future: _appSupportDirectory,
              builder: _buildDirectory,
            ),
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: ElevatedButton(
                onPressed: _requestAppCacheDirectory,
                child: const Text('Get Application Cache Directory'),
              ),
            ),
            FutureBuilder<String?>(
              future: _appCacheDirectory,
              builder: _buildDirectory,
            ),
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: ElevatedButton(
                onPressed: _requestExternalStorageDirectory,
                child: const Text('Get External Storage Directory'),
              ),
            ),
            FutureBuilder<String?>(
              future: _externalDocumentsDirectory,
              builder: _buildDirectory,
            ),
            Column(
              children: <Widget>[
                Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: ElevatedButton(
                    child: const Text('Get External Storage Directories'),
                    onPressed: () {
                      _requestExternalStorageDirectories(
                        StorageDirectory.music,
                      );
                    },
                  ),
                ),
              ],
            ),
            FutureBuilder<List<String>?>(
              future: _externalStorageDirectories,
              builder: _buildDirectories,
            ),
            Column(
              children: <Widget>[
                Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: ElevatedButton(
                    onPressed: _requestExternalCacheDirectories,
                    child: const Text('Get External Cache Directories'),
                  ),
                ),
              ],
            ),
            FutureBuilder<List<String>?>(
              future: _externalCacheDirectories,
              builder: _buildDirectories,
            ),
            Padding(
              padding: const EdgeInsets.all(16.0),
              child: ElevatedButton(
                onPressed: _requestDownloadsDirectory,
                child: const Text('Get Downloads Directory'),
              ),
            ),
            FutureBuilder<String?>(
              future: _externalDownloadsDirectory,
              builder: _buildDirectory,
            ),
          ],
        ),
      ),
    );
  }
}