import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:dialer/services/obfuscate_service.dart';
import 'package:dialer/widgets/username_color_generator.dart';

class CallPage extends StatefulWidget {
  final String displayName;
  final Uint8List? thumbnail;

  const CallPage({super.key, required this.displayName, this.thumbnail});

  @override
  _CallPageState createState() => _CallPageState();
}

class _CallPageState extends State<CallPage> {
  final ObfuscateService _obfuscateService = ObfuscateService();
  bool isMuted = false;
  bool isSpeakerOn = false;
  bool isKeypadVisible = false;
  bool icingProtocolOk = true;

  void _toggleMute() {
    setState(() {
      isMuted = !isMuted;
    });
  }

  void _toggleSpeaker() {
    setState(() {
      isSpeakerOn = !isSpeakerOn;
    });
  }

  void _toggleKeypad() {
    setState(() {
      isKeypadVisible = !isKeypadVisible;
    });
  }

  void _toggleIcingProtocol() {
    setState(() {
      icingProtocolOk = !icingProtocolOk;
    });
  }

  void _hangUp() {
    Navigator.pop(context);
  }

  @override
  Widget build(BuildContext context) {
    final double avatarRadius = isKeypadVisible ? 30.0 : 60.0;
    final double nameFontSize = isKeypadVisible ? 20.0 : 32.0;
    final double statusFontSize = isKeypadVisible ? 16.0 : 20.0;

    return Scaffold(
      body: Container(
        color: Colors.black,
        child: SafeArea(
          child: Column(
            children: [
              // Fixed size header area
              Column(
                mainAxisSize: MainAxisSize.min,
                children: [
                  const SizedBox(height: 20),
                  ObfuscatedAvatar(
                    imageBytes: widget.thumbnail,
                    radius: avatarRadius,
                    backgroundColor: generateColorFromName(widget.displayName),
                    fallbackInitial: widget.displayName,
                  ),
                  const SizedBox(height: 10),
                  Text(
                    _obfuscateService.obfuscateData(widget.displayName),
                    style: TextStyle(
                      fontSize: nameFontSize,
                      color: Colors.white,
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                  const SizedBox(height: 5),
                  Text(
                    'Calling...',
                    style: TextStyle(fontSize: statusFontSize, color: Colors.white70),
                  ),
                  const SizedBox(height: 10),
                ],
              ),

              // Scrollable middle section
              Expanded(
                child: SingleChildScrollView(
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    children: [
                      // Keypad if visible
                      if (isKeypadVisible)
                        Container(
                          margin: const EdgeInsets.symmetric(horizontal: 40),
                          padding: const EdgeInsets.all(10),
                          decoration: BoxDecoration(
                            color: Colors.black45,
                            borderRadius: BorderRadius.circular(10),
                          ),
                          child: GridView.count(
                            shrinkWrap: true,
                            physics: const NeverScrollableScrollPhysics(),
                            crossAxisCount: 3,
                            mainAxisSpacing: 10,
                            crossAxisSpacing: 10,
                            children: List.generate(12, (index) {
                              String label;
                              if (index < 9) {
                                label = '${index + 1}';
                              } else if (index == 9) {
                                label = '*';
                              } else if (index == 10) {
                                label = '0';
                              } else {
                                label = '#';
                              }
                              return Center(
                                child: Text(
                                  label,
                                  style: const TextStyle(
                                      fontSize: 24, color: Colors.white),
                                ),
                              );
                            }),
                          ),
                        ),

                      // Icing protocol status
                      GestureDetector(
                        onTap: _toggleIcingProtocol,
                        child: Padding(
                          padding: const EdgeInsets.symmetric(vertical: 8.0),
                          child: Row(
                            mainAxisAlignment: MainAxisAlignment.center,
                            children: [
                              Icon(
                                icingProtocolOk ? Icons.lock : Icons.lock_open,
                                color: icingProtocolOk ? Colors.green : Colors.red,
                              ),
                              const SizedBox(width: 8),
                              Text(
                                'Icing protocol: ${icingProtocolOk ? "ok" : "ko"}',
                                style: TextStyle(
                                  color: icingProtocolOk ? Colors.green : Colors.red,
                                  fontSize: 16,
                                  fontWeight: FontWeight.bold,
                                ),
                              ),
                            ],
                          ),
                        ),
                      ),

                      // Control buttons
                      Padding(
                        padding: const EdgeInsets.symmetric(horizontal: 32.0),
                        child: Row(
                          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                          children: [
                            IconButton(
                              onPressed: _toggleMute,
                              icon: Icon(
                                isMuted ? Icons.mic_off : Icons.mic,
                                color: Colors.white,
                                size: 32,
                              ),
                            ),
                            IconButton(
                              onPressed: _toggleKeypad,
                              icon: Icon(
                                Icons.dialpad,
                                color: isKeypadVisible ? Colors.amber : Colors.white,
                                size: 32,
                              ),
                            ),
                            IconButton(
                              onPressed: _toggleSpeaker,
                              icon: Icon(
                                isSpeakerOn ? Icons.volume_up : Icons.volume_off,
                                color: isSpeakerOn ? Colors.amber : Colors.white,
                                size: 32,
                              ),
                            ),
                          ],
                        ),
                      ),
                    ],
                  ),
                ),
              ),

              // Fixed size footer with hang up button
              Padding(
                padding: const EdgeInsets.symmetric(vertical: 16.0),
                child: IconButton(
                  onPressed: _hangUp,
                  icon: const Icon(
                    Icons.call_end,
                    color: Colors.red,
                    size: 48,
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}