import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:supplier_new/common/settings.dart';
import 'package:supplier_new/resources/tankers_model.dart';
import 'fleet.dart';
import 'resources_drivers.dart';
import 'resources_sources.dart';

import 'package:supplier_new/resources/resources_drivers.dart';


import 'package:supplier_new/resources/resources_sources.dart';

import 'fleet.dart';void main() => runApp(const MaterialApp(home: ResourcesFleetScreen()));

class ResourcesFleetScreen extends StatefulWidget {
  const ResourcesFleetScreen({super.key});

  @override
  State<ResourcesFleetScreen> createState() => _ResourcesFleetScreenState();
}

class _ResourcesFleetScreenState extends State<ResourcesFleetScreen> {
  final _formKey = GlobalKey<FormState>();

  // Controllers
  final _nameCtrl = TextEditingController();
  final _capacityCtrl = TextEditingController(); // hint-like
  final _plateCtrl = TextEditingController();
  final _mfgYearCtrl = TextEditingController();
  final _insExpiryCtrl = TextEditingController();

  String? _required(String? v, {String field = "This field"}) {
    if (v == null || v.trim().isEmpty) return "$field is required";
    return null;
  }

  int selectedTab = 0;
  String search = '';
  bool  isLoading = false;
  List<TankersModel> tankersList = [];

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    _fetchTankers();
  }

  Future<void> _fetchTankers() async {
    setState(() => isLoading = true);

    try {
      final response = await AppSettings.getTankers();
      final data = (jsonDecode(response)['data'] as List)
          .map((e) => TankersModel.fromJson(e))
          .toList();
      if (!mounted) return;
      setState(() {
        tankersList = data;
        isLoading = false;
      });
    } catch (e) {
      debugPrint("⚠️ Error fetching orders: $e");
      setState(() => isLoading = false);
    }
  }

  final List<Map<String, dynamic>> items = [
    {
      'title': 'Tanker Name',
      'subtitle': 'Drinking water - 10,000 L',
      'status': ['filled', 'available'],
      'code': 'TS 07 J 3492',
      'owner': 'Ramesh Krishna'
    },
    {
      'title': 'Drinking Water - 15,000L',
      'subtitle': 'Drinking water - 15,000 L',
      'status': ['empty', 'available'],
      'code': 'TS 07 J 3492',
      'owner': 'Ramesh Krishna'
    },
    {
      'title': 'Tanker Name',
      'subtitle': 'Drinking water - 10,000 L',
      'status': ['filled', 'in-use'],
      'code': 'TS 07 J 3492',
      'owner': 'Ramesh Krishna'
    },
    {
      'title': 'Drinking Water - 15,000L',
      'subtitle': 'Drinking water - 15,000 L',
      'status': ['empty', 'in-use'],
      'code': 'TS 07 J 3492',
      'owner': 'Ramesh Krishna'
    },
    {
      'title': 'Tanker Name',
      'subtitle': 'Drinking water - 10,000 L',
      'status': ['filled', 'maintenance'],
      'code': 'TS 07 J 3492',
      'owner': 'Ramesh Krishna'
    },
  ];

  void openTankerSimpleSheet(BuildContext context) {
    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.white,
      shape: const RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
      ),
      builder: (context) {
        return Padding(
          padding: EdgeInsets.only(
            left: 20,
            right: 20,
            top: 16,
            bottom: MediaQuery.of(context).viewInsets.bottom + 20,
          ),
          child: Form(
            key: _formKey,
            child: ListView(
              shrinkWrap: true,
              children: [
                // Tanker Name
                Text("Tanker Name *",
                    style: fontTextStyle(14, const Color(0xFF646566), FontWeight.w600)),
                const SizedBox(height: 6),
                TextFormField(
                  controller: _nameCtrl,
                  validator: (v) => _required(v, field: "Tanker Name"),
                  decoration: const InputDecoration(
                    hintText: "Enter Tanker Name",
                    border: OutlineInputBorder(),
                    isDense: true,
                  ),
                  textInputAction: TextInputAction.next,
                ),
                const SizedBox(height: 14),

                // Capacity
                Text("Tanker Capacity (in L) *",
                    style: fontTextStyle(14, const Color(0xFF646566), FontWeight.w600)),
                const SizedBox(height: 6),
                TextFormField(
                  controller: _capacityCtrl,
                  validator: (v) => _required(v, field: "Tanker Capacity"),
                  decoration: InputDecoration(
                    hintText: "10,000 L",
                    hintStyle: fontTextStyle(14, const Color(0xFF939495), FontWeight.w400),
                    border: const OutlineInputBorder(),
                    isDense: true,
                  ),
                  keyboardType: TextInputType.number,
                  inputFormatters: [
                    FilteringTextInputFormatter.allow(RegExp(r'[0-9,]')),
                  ],
                  textInputAction: TextInputAction.next,
                ),
                const SizedBox(height: 14),

                // License Plate
                Text("License Plate *",
                    style: fontTextStyle(14, const Color(0xFF646566), FontWeight.w600)),
                const SizedBox(height: 6),
                TextFormField(
                  controller: _plateCtrl,
                  validator: (v) => _required(v, field: "License Plate"),
                  decoration: InputDecoration(
                    hintText: "AB 05 H 4948",
                    hintStyle: fontTextStyle(14, const Color(0xFF939495), FontWeight.w400),
                    border: const OutlineInputBorder(),
                    isDense: true,
                  ),
                  textCapitalization: TextCapitalization.characters,
                  textInputAction: TextInputAction.next,
                ),
                const SizedBox(height: 14),

                // Manufacturing Year (optional)
                Text("Manufacturing Year (opt)",
                    style: fontTextStyle(14, const Color(0xFF646566), FontWeight.w600)),
                const SizedBox(height: 6),
                TextFormField(
                  controller: _mfgYearCtrl,
                  decoration: InputDecoration(
                    hintText: "YYYY",
                    hintStyle: fontTextStyle(14, const Color(0xFF939495), FontWeight.w400),
                    border: const OutlineInputBorder(),
                    isDense: true,
                  ),
                  keyboardType: TextInputType.number,
                  inputFormatters: [
                    FilteringTextInputFormatter.digitsOnly,
                    LengthLimitingTextInputFormatter(4),
                  ],
                  textInputAction: TextInputAction.next,
                ),
                const SizedBox(height: 14),

                // Insurance Expiry Date (optional)
                Text("Insurance Expiry Date (opt)",
                    style: fontTextStyle(14, const Color(0xFF646566), FontWeight.w600)),
                const SizedBox(height: 6),
                TextFormField(
                  controller: _insExpiryCtrl,
                  readOnly: true,
                  decoration: InputDecoration(
                    hintText: "DD-MM-YYYY",
                    hintStyle: fontTextStyle(14, const Color(0xFF939495), FontWeight.w400),
                    border: const OutlineInputBorder(),
                    isDense: true,
                    suffixIcon: const Icon(Icons.calendar_today_outlined, size: 18),
                  ),
                  onTap: () async {
                    final now = DateTime.now();
                    final picked = await showDatePicker(
                      context: context,
                      initialDate: now,
                      firstDate: DateTime(now.year - 30),
                      lastDate: DateTime(now.year + 30),
                    );
                    if (picked != null) {
                      final dd = picked.day.toString().padLeft(2, '0');
                      final mm = picked.month.toString().padLeft(2, '0');
                      final yyyy = picked.year.toString();
                      _insExpiryCtrl.text = "$dd-$mm-$yyyy";
                    }
                  },
                ),
                const SizedBox(height: 20),

                // Save button
                SizedBox(
                  width: double.infinity,
                  child: ElevatedButton(
                    style: ElevatedButton.styleFrom(
                      backgroundColor: const Color(0xFF8270DB),
                      foregroundColor: Colors.white,
                      padding: const EdgeInsets.symmetric(vertical: 14),
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(24),
                      ),
                    ),
                    onPressed: () async {
                      if (_formKey.currentState?.validate() != true) return;

                      // TODO: Replace with your save logic / API call
                      // Example:
                      // final ok = await saveTanker();
                      // if (ok) Navigator.pop(context, true);

                      Navigator.pop(context, true); // close sheet on success
                    },
                    child: Text(
                      "Save",
                      style: fontTextStyle(14, Colors.white, FontWeight.w600),
                    ),
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }



  @override
  Widget build(BuildContext context) {
    final filtered = tankersList.where((it) {
      final q = search.trim().toLowerCase();
      if (q.isEmpty) return true;
      return it.tanker_name.toLowerCase().contains(q);
    }).toList();

    return Scaffold(
      backgroundColor: Colors.white,
      body: Column(
        children: [
          Container(
            color: Colors.white,
            padding: const EdgeInsets.fromLTRB(16, 12, 16, 12),
            child: Column(
              children: [
                const SizedBox(height: 12),
                Container(
                  width: double.infinity,
                  padding: const EdgeInsets.all(14),
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.circular(12),
                    border: Border.all(color: Color(0xFF939495)),
                  ),
                  child: Row(
                    children: [
                      Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Container(
                            width: 40,
                            height: 40,
                            decoration: const BoxDecoration(
                              color: Color(0xFFF6F0FF),
                              borderRadius:
                                  BorderRadius.all(Radius.circular(8)),
                            ),
                            child: Padding(
                              padding: const EdgeInsets.all(8.0),
                              child: Image.asset(
                                'images/truck.png',
                                fit: BoxFit.contain,
                              ),
                            ),
                          ),
                          const SizedBox(height: 8),
                          Text('Total Tankers', style: fontTextStyle(12, Color(0xFF2D2E30), FontWeight.w500, // or w500 if you want slightly bolder
                            ),
                          ),

                        ],
                      ),
                      const Spacer(),
                      Column(
                        crossAxisAlignment: CrossAxisAlignment.end,
                        mainAxisSize: MainAxisSize.min,
                        children: [Text(tankersList.length.toString(), style: fontTextStyle(24, const Color(0xFF0D3771), FontWeight.w500,
                            ),
                          ),

                          SizedBox(height: 6),
                          Text('+2 since last month',
                              style: fontTextStyle(10, Color(0xFF646566), FontWeight.w400,)),
                        ],
                      ),
                    ],
                  ),
                ),

                const SizedBox(height: 12),

                IntrinsicHeight(
                  child: Row(
                    crossAxisAlignment: CrossAxisAlignment.stretch,
                    children: [
                      Expanded(
                          child: SmallMetricBox(title: 'Active', value: '2')),
                      const SizedBox(width: 8),
                      Expanded(
                          child: SmallMetricBox(title: 'Inactive', value: '3')),
                      const SizedBox(width: 8),
                      Expanded(
                          child: SmallMetricBox(
                              title: 'Under Maintenances', value: '1')),
                    ],
                  ),
                ),
              ],
            ),
          ),

          // -------- SECOND SECTION (gray background) ----------
          Expanded(
            child: Container(
              color: const Color(0xFFF5F5F5), // Gray background
              child: Padding(
                padding: const EdgeInsets.fromLTRB(16, 12, 16, 0),
                child: Column(
                  children: [
                    Row(
                      children: [
                        SizedBox(
                          width: 270,
                          child: Container(
                            padding: const EdgeInsets.symmetric(
                                horizontal: 12, vertical: 6),
                            decoration: BoxDecoration(
                              border: Border.all(
                                color: Color(0xFF939495), // 👈 border color
                                width: 0.5, // 👈 border width
                              ),
                              borderRadius: BorderRadius.circular(22),
                            ),
                            child: Row(
                              children: [
                                Container(
                                  width: 20,
                                  height: 20,
                                  decoration: const BoxDecoration(
                                    image: DecorationImage(
                                        image: AssetImage('images/search.png'),
                                        fit: BoxFit.contain),
                                  ),
                                ),
                                const SizedBox(width: 8),
                                Expanded(
                                  child: TextField(
                                    decoration: InputDecoration(
                                      hintText: 'Search',
                                      hintStyle: fontTextStyle(
                                          12,
                                          const Color(0xFF939495),
                                          FontWeight.w400),
                                      border: InputBorder.none,
                                      isDense: true,
                                    ),
                                    onChanged: (v) =>
                                        setState(() => search = v),
                                  ),
                                ),
                              ],
                            ),
                          ),
                        ),
                        const SizedBox(width: 16),
                        Container(
                          width: 24,
                          height: 24,
                          decoration: const BoxDecoration(
                            image: DecorationImage(
                                image: AssetImage('images/icon_tune.png'),
                                fit: BoxFit.contain),
                          ),
                        ),
                        const SizedBox(width: 16),
                        Container(
                          width: 24,
                          height: 24,
                          decoration: const BoxDecoration(
                            image: DecorationImage(
                                image: AssetImage('images/up_down arrow.png'),
                                fit: BoxFit.contain),
                          ),
                        ),
                      ],
                    ),

                    const SizedBox(height: 12),

                    // Cards List
                    Expanded(
                      child: ListView.separated(
                        itemCount: filtered.length,
                        separatorBuilder: (_, __) => const SizedBox(height: 10),
                        itemBuilder: (context, idx) {
                          final it = filtered[idx];
                          return TankCard(
                            title: it.tanker_name,
                            subtitle: it.type_of_water,
                            capacity: it.capacity,
                            code: it.license_plate,
                            owner: it.supplier_name,
                            status: List<String>.from(it.availability),
                          );
                        },
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
        ],
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () async{
          openTankerSimpleSheet(context);
          /*final result = await Navigator.push(
            context,
            MaterialPageRoute(
              builder: (context) => FleetStep1Page(),
            ),
          );

          // If result indicates API reload
          if (result == true) {
            _fetchTankers();
          }*/

        },
        backgroundColor: const Color(0xFF000000),
        shape: const CircleBorder(), // ✅ ensures circle
        child: const Icon(Icons.add,color: Colors.white,),
      ),
    );
  }
}

// ====== SmallMetricBox ======
class SmallMetricBox extends StatelessWidget {
  final String title;
  final String value;

  const SmallMetricBox({super.key, required this.title, required this.value});

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 10),
      decoration: BoxDecoration(
        borderRadius: BorderRadius.circular(12),
        border: Border.all(color: Color(0xFF939495)),

        color: Colors.white,
      ),
      child: Column(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(title,
              maxLines: 2,
              overflow: TextOverflow.ellipsis,
              style:
                  fontTextStyle(12, const Color(0xFF2D2E30), FontWeight.w500)),
          Text(value,
              style:
                  fontTextStyle(24, const Color(0xFF0D3771), FontWeight.w500)),
        ],
      ),
    );
  }
}

// ====== TankCard ======
class TankCard extends StatelessWidget {
  final String title;
  final String subtitle;
  final String capacity;
  final String code;
  final String owner;
  final List<String> status;

  const TankCard({
    super.key,
    required this.title,
    required this.subtitle,
    required this.capacity,
    required this.code,
    required this.owner,
    required this.status,
  });

  Color _chipColor(String s) {
    switch (s) {
      case 'filled':
        return const Color(0xFFFFFFFF);
      case 'available':
        return const Color(0xFFE8F0FF);
      case 'empty':
        return const Color(0xFFFFEEEE);
      case 'in-use':
        return const Color(0xFFFFF0E6);
      case 'maintenance':
        return const Color(0xFFFFF4E6);
      default:
        return const Color(0xFFECECEC);
    }
  }

  Color _chipTextColor(String s) {
    switch (s) {
      case 'filled':
        return const Color(0xFF1D7AFC);
      case 'available':
        return const Color(0xFF0A9E04);
      case 'empty':
        return const Color(0xFFE2483D);
      case 'in-use':
        return const Color(0xFFEA843B);
      case 'maintenance':
        return const Color(0xFFD0AE3C);
      default:
        return Colors.black87;
    }
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: const EdgeInsets.all(12),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(12),
        border: Border.all(color: Colors.grey.shade200),
      ),
      child: Row(
        children: [
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Row(
                  children: status.map((s) {
                    final chipTextColor = _chipTextColor(s);
                    return Container(
                      margin: const EdgeInsets.only(right: 6),
                      padding: const EdgeInsets.symmetric(
                          horizontal: 8, vertical: 4),
                      decoration: BoxDecoration(
                        color: _chipColor(s),
                        borderRadius: BorderRadius.circular(8),
                        border: Border.all(color: chipTextColor, width: 1),
                      ),
                      child: Text(
                        s, style:
                            fontTextStyle(10, chipTextColor, FontWeight.w400),
                      ),
                    );
                  }).toList(),
                ),
                const SizedBox(height: 8),
                Text  (title,
                    style: fontTextStyle(
                        14, const Color(0xFF343637), FontWeight.w600)),
                const SizedBox(height: 6),
                Text(subtitle+' - '+capacity+' L',
                    style: fontTextStyle(
                        10, const Color(0xFF343637), FontWeight.w600)),
                const SizedBox(height: 10),
                Row(
                  children: [
                    ClipOval(
                      child: Container(
                        height: 12,
                        width: 12,
                        decoration: BoxDecoration(
                          shape: BoxShape.circle,
                          image: DecorationImage(
                              image: (AppSettings.profilePictureUrl != '' &&
                                      AppSettings.profilePictureUrl != 'null')
                                  ? NetworkImage(AppSettings.profilePictureUrl)
                                      as ImageProvider
                                  : const AssetImage("images/profile_pic.png"),
                              fit: BoxFit.cover),
                        ),
                      ),
                    ),
                    const SizedBox(width: 6),
                    Expanded(
                      child: Text(owner,
                          style: fontTextStyle(
                              8, const Color(0xFF646566), FontWeight.w400)),
                    ),
                  ],
                ),
              ],
            ),
          ),
          Column(
            crossAxisAlignment: CrossAxisAlignment.end,
            children: [
              Text(code,
                  style: fontTextStyle(
                      10, const Color(0xFF515253), FontWeight.w400)),
              const SizedBox(height: 28),
            ],
          ),
        ],
      ),
    );
  }
}