import 'package:flutter/material.dart';

import '../api/oa_client.dart';
import '../labels.dart';
import '../widgets/common.dart';
import 'record_detail_page.dart';

class RestShell {
  const RestShell(this.path, {this.query});
  final String path;
  final Map<String, String>? query;
}

RestShell? shellFor(String code, String? path) {
  final p = path ?? '';
  final c = code.toLowerCase();
  if (c.startsWith('bid') || p.startsWith('/bid')) return const RestShell('/bid-cases');
  if (c.startsWith('contract:hr') || p.startsWith('/contract/hr') || p.contains('labor-contract')) {
    return const RestShell('/labor-contracts');
  }
  if (c.startsWith('contract') || p.startsWith('/contract')) return const RestShell('/contracts');
  if (p.startsWith('/party/entities') || c == 'party:entities') return const RestShell('/legal-entities');
  if (p.startsWith('/party/contacts') || c == 'party:contacts') return const RestShell('/contacts');
  if (c.startsWith('party') || p.startsWith('/party')) return const RestShell('/parties');
  if (c == 'seal:borrows' || p.contains('borrow')) return const RestShell('/credential-borrows');
  if (c == 'seal:requests' || p.contains('seal-apply') || p.contains('/seal/requests')) {
    return const RestShell('/seal-requests');
  }
  if (c == 'seal:registry' || p.contains('/seal/registry')) return const RestShell('/seals');
  if (c.startsWith('seal') || p.startsWith('/seal')) return const RestShell('/qualifications');
  if (c.startsWith('asset') || p.startsWith('/asset') || p.contains('registered-asset')) {
    return const RestShell('/registered-assets');
  }
  if (p.contains('asset-purchase')) return const RestShell('/asset-purchases');
  if (p.contains('purchase') || c.contains('purchase')) return const RestShell('/purchase-requests');
  if (p.contains('/assets') && !p.contains('registered')) return const RestShell('/assets');
  if (c.contains('timesheet') || p.contains('timesheet')) return const RestShell('/timesheets');
  if (c.contains('task') || p.contains('task')) return const RestShell('/project-tasks');
  if (p.contains('project-change')) return const RestShell('/project-changes');
  if (p.contains('resource-board')) return const RestShell('/resource-board');
  if (c.startsWith('project') || p.startsWith('/project')) return const RestShell('/projects');
  if (p.contains('loan') || c.contains('loan')) return const RestShell('/loans');
  if (p.contains('bond')) return const RestShell('/bonds');
  if (p.contains('invoice')) return const RestShell('/invoices');
  if (p.contains('payment')) return const RestShell('/payments');
  if (p.contains('expense') || c.contains('expense')) return const RestShell('/expenses');
  if (p.contains('my-expense')) return const RestShell('/office/my-expenses');
  if (p.contains('payroll') || c.contains('payroll')) return const RestShell('/payroll');
  if (p.contains('leave') || c.contains('leave')) return const RestShell('/leave-requests');
  if (p.contains('employment')) return const RestShell('/employment-events');
  if (p.contains('departments') || c.contains('dept')) return const RestShell('/departments');
  if (p.contains('applies') || c.contains('apply')) return const RestShell('/office/applies');
  if (p.contains('work-assign')) return const RestShell('/office/work-assignments');
  if (p.contains('cost-target')) return const RestShell('/cost-targets');
  if (p.contains('attendance/punch')) return const RestShell('/attendance/punches');
  if (c.contains('attendance') || p.contains('attendance')) return const RestShell('/attendance');
  if (p.contains('employee') || c.contains('employee') || p.startsWith('/hr')) {
    return const RestShell('/employees', query: {'page': '1', 'pageSize': '100'});
  }
  if (c.startsWith('report') || p.startsWith('/reports') || p.startsWith('/office/reports')) {
    return const RestShell('/office/reports');
  }
  if (c.startsWith('legal') || p.startsWith('/legal')) return null;
  return null;
}

class ModuleListPage extends StatefulWidget {
  const ModuleListPage({super.key, required this.api, required this.title, required this.shell});
  final OaClient api;
  final String title;
  final RestShell shell;

  @override
  State<ModuleListPage> createState() => _ModuleListPageState();
}

class _ModuleListPageState extends State<ModuleListPage> {
  List<Map<String, dynamic>> _items = [];
  String _err = '';
  bool _loading = true;

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

  Future<void> _load() async {
    setState(() {
      _loading = true;
      _err = '';
    });
    try {
      final data = await widget.api.get(
        widget.shell.path,
        query: {
          'page': '1',
          'pageSize': '100',
          ...?widget.shell.query,
        },
      );
      if (!mounted) return;
      setState(() {
        _items = asMaps(data);
        _loading = false;
      });
    } catch (e) {
      if (!mounted) return;
      setState(() {
        _err = '$e';
        _loading = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: _loading
          ? const Center(child: CircularProgressIndicator())
          : _err.isNotEmpty
              ? EmptyHint(_err)
              : _items.isEmpty
                  ? EmptyHint('暂无${widget.title}')
                  : RefreshIndicator(
                      onRefresh: _load,
                      child: ListView(
                        children: [
                          for (final r in _items)
                            KvTile(
                              title: pickTitle(r),
                              subtitle: zh(pickSub(r)),
                              status: r['status'],
                              onTap: () {
                                final seed = Map<String, dynamic>.from(r);
                                if ('${r['id']}'.length >= 8) seed['_fetch'] = '${widget.shell.path}/${r['id']}';
                                openRecord(context, widget.api, seed, title: pickTitle(r));
                              },
                            ),
                        ],
                      ),
                    ),
    );
  }
}