import 'dart:convert';
import 'package:http/http.dart' as http;
import 'package:flutter/material.dart';
import 'package:openstore/get_app_link.dart';
import 'package:url_launcher/url_launcher.dart';

class AppPage extends StatefulWidget {
  const AppPage({super.key, required this.packageName});
  final String packageName;
  @override
  State<AppPage> createState() => _AppPageState();
}

class _AppPageState extends State<AppPage> {
  Map? _appInfo;
  @override
  void initState() {
    super.initState();
    _loadAppInfo();
  }
  void _loadAppInfo() async {
    var rq = await http.get(
      Uri.https(
        "backapi.rustore.ru",
        "/applicationData/overallInfo/${widget.packageName}",
      )
    );
    if (rq.statusCode != 200) {
      showDialog(
        context: context,
        builder: (context) => AlertDialog(
          title: const Text("Что то пошло не так"),
          content: Text("RuStore вернул код ${rq.statusCode}"),
          actions: [
            FilledButton(
              onPressed: () {
                Navigator.of(context)
                ..pop()
                ..pop();
              },
              child: const Text("ок"),
            )
          ],
        )
      );
    }
    setState(() {
      _appInfo = json.decode(utf8.decode(rq.bodyBytes))["body"];
    }); 
  }
  @override
  Widget build(BuildContext context) {
    return _appInfo != null ? ListView(
        padding: const EdgeInsets.fromLTRB(15, 0, 15, 15),
        children: [
          Row(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              ClipRRect(
                borderRadius: BorderRadius.circular(25),
                child: Image.network(
                  _appInfo?["iconUrl"],
                  width: 120,
                ),
              ),
              const SizedBox(width: 15,),
              Expanded(
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                      Text(
                        _appInfo?["appName"],
                        //overflow: TextOverflow.ellipsis,
                        style: const TextStyle(
                          fontSize: 21,
                          fontWeight: FontWeight.bold,
                        ),
                      ),
                      const SizedBox(height: 10,),
                      Text(
                        _appInfo?["companyName"],
                        overflow: TextOverflow.ellipsis,
                        softWrap: false,
                      ),
                  ],
                )
              ),
            ],
          ),
          const SizedBox(height: 20,),
          FilledButton.icon(
            style: FilledButton.styleFrom(
              minimumSize: const Size.fromHeight(40),
            ),
            onPressed: () async {
              launchUrl(await getAppLink(_appInfo?["appId"], context));
            },
            label: const Text("Скачать APK"),
          ),
          const SizedBox(height: 15),
          SizedBox(
            height: 84,
            child: ListView(
              scrollDirection: Axis.horizontal,
              children: [
                _InfoCard(
                  topText: "${(_appInfo?["fileSize"]/1024/1024).toStringAsFixed(1)} MB",
                  bottomText: "Размер",
                ),
                _InfoCard(
                  topText: _appInfo?["versionName"],
                  bottomText: "Версия",
                ),
                _InfoCard(
                  topText: _appInfo?["minSdkVersion"].toString() ?? "",
                  bottomText: "minSdkVersion",
                ),
                _InfoCard(
                  topText: _appInfo?["ageRestriction"]["category"] ?? "?",
                  bottomText: "Возраст",
                ),
                _InfoCard(
                  topText: _appInfo?["categories"][0] ?? "?",
                  bottomText: "Категория",
                )
              ],
            ),
          ),
          const SizedBox(height: 15),
          SizedBox(
            height: 250,
            child: ListView.builder(
              scrollDirection: Axis.horizontal,
              itemCount: _appInfo?["fileUrls"].length,
              itemBuilder: (context, i) {
                var file = _appInfo?["fileUrls"][i];
                if (file["type"] != "SCREENSHOT" && file["orientation"] != "PORTRAIT") {
                  return const SizedBox();
                }
                //return Text("data${i}");
                return Padding(
                  padding: const EdgeInsets.all(5),
                  child: ClipRRect(
                    borderRadius: BorderRadius.circular(15),
                    child: Image.network(
                      file["fileUrl"],
                    ),
                  ),
                );
              }
            ),
          ),
          const SizedBox(height: 15),
          const Text("Что нового?", style: TextStyle(fontSize: 21, fontWeight: FontWeight.bold),),
          Text(_appInfo?["whatsNew"]),
          const SizedBox(height: 15),
          const Text("Описание", style: TextStyle(fontSize: 21, fontWeight: FontWeight.bold),),
          Text(_appInfo?["fullDescription"]),
        ],
      ) : const LinearProgressIndicator();
  }
}

class _InfoCard extends StatelessWidget {
  const _InfoCard({super.key, required this.topText, required this.bottomText});
  final String topText;
  final String bottomText;

  @override
  Widget build(BuildContext context) {
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(15),
        child: Column(
          children: [
            Text(
              topText,
              style: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
            ),
            Text(bottomText),
          ],
        ),
      ),
    );
  }

}