// マスター編集用汎用ウィジェット（簡易実装）+ 電話帳連携対応
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:contacts_service/contacts_service.dart';

/// テキスト入力フィールド（マスター用）+ 電話帳取得ボタン付き
class MasterTextField extends StatefulWidget {
  final String label;
  final TextEditingController controller;
  final TextInputType? keyboardType;
  final bool readOnly;
  final int? maxLines;
  final String? hintText;
  final String? initialValueText;
  final String? phoneField; // 電話番号フィールド（電話帳取得用）

  const MasterTextField({
    super.key,
    required this.label,
    required this.controller,
    this.keyboardType,
    this.readOnly = false,
    this.maxLines,
    this.hintText,
    this.initialValueText,
    this.phoneField,
  });

  @override
  State<MasterTextField> createState() => _MasterTextFieldState();
}

class _MasterTextFieldState extends State<MasterTextField> {
  bool _isSearchingPhone = false;
  String? _tempPhoneNumber;

  Future<void> _searchContactsForPhone() async {
    if (widget.readOnly) return;
    
    // UI に待機表示を表示
    setState(() {
      _isSearchingPhone = true;
    });

    try {
      final contacts = await ContactsService.getContacts(limit: 10);
      final selectedContact = contacts.firstWhere(
        (contact) => contact.phones.any((phone) => 
          phone.number.replaceAll(' ', '').replaceAll('-', '').replaceAll('/', '') == 
          widget.controller.text.replaceAll(' ', '').replaceAll('-', '').replaceAll('/', '')),
        orElse: () => null,
      );

      if (selectedContact != null && selectedContact.phones.isNotEmpty) {
        // 番号を一致するものを選択
        final matchingPhone = selectedContact.phones.firstWhere(
          (phone) => phone.number.replaceAll(' ', '').replaceAll('-', '').replaceAll('/', '') == 
                     widget.controller.text.replaceAll(' ', '').replaceAll('-', '').replaceAll('/', ''),
          orElse: () => selectedContact.phones.first,
        );

        setState(() {
          _tempPhoneNumber = matchingPhone.number;
        });
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(content: Text('連絡先検索に失敗しました：$e'), backgroundColor: Colors.orange),
        );
      }
    } finally {
      if (mounted) {
        setState(() {
          _isSearchingPhone = false;
        });
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Expanded(child: Text(widget.label, style: const TextStyle(fontWeight: FontWeight.bold))),
              if (!widget.readOnly && widget.phoneField != null)
                _buildPhoneSearchButton(),
            ],
          ),
          SizedBox(height: 4),
          Container(
            constraints: BoxConstraints(maxHeight: 50), // セリ上がり病対策：最大高制限
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                TextField(
                  controller: widget.controller,
                  decoration: InputDecoration(
                    hintText: widget.hintText ?? (widget.initialValueText != null ? widget.initialValueText : null),
                    border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                    enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                    focusedBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(8),
                      borderSide: BorderSide(color: Theme.of(context).primaryColor, width: 2),
                    ),
                    contentPadding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 16.0),
                  ),
                  keyboardType: widget.keyboardType,
                  readOnly: widget.readOnly,
                  maxLines: widget.maxLines ?? (widget.phoneField == null ? 1 : 2), // 電話番号時は最大 2 行
                ),
                if (_isSearchingPhone && _tempPhoneNumber != null)
                  Padding(
                    padding: const EdgeInsets.only(top: 4.0),
                    child: Row(
                      children: [
                        Icon(Icons.hourglass_empty, size: 16, color: Colors.orange),
                        SizedBox(width: 8),
                        Text('電話帳から取得中...', style: TextStyle(color: Colors.orange[700])),
                      ],
                    ),
                  ),
                if (_tempPhoneNumber != null)
                  Padding(
                    padding: const EdgeInsets.only(top: 4.0),
                    child: Row(
                      children: [
                        Icon(Icons.check_circle, size: 16, color: Colors.green),
                        SizedBox(width: 8),
                        Text('見つかりました：$_tempPhoneNumber', style: TextStyle(color: Colors.green[700])),
                        IconButton(
                          icon: const Icon(Icons.close, size: 16),
                          onPressed: () {
                            setState(() {
                              _tempPhoneNumber = null;
                            });
                          },
                        ),
                      ],
                    ),
                  ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildPhoneSearchButton() {
    return IconButton(
      icon: const Icon(Icons.person_search),
      tooltip: '電話帳から取得',
      onPressed: _searchContactsForPhone,
    );
  }
}

/// 数値入力フィールド（マスター用）
class MasterNumberField extends StatelessWidget {
  final String label;
  final TextEditingController controller;
  final String? hintText;
  final bool readOnly;
  final String? initialValueText;

  const MasterNumberField({
    super.key,
    required this.label,
    required this.controller,
    this.hintText,
    this.readOnly = false,
    this.initialValueText,
  });

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(label, style: const TextStyle(fontWeight: FontWeight.bold)),
          SizedBox(height: 4),
          Container(
            constraints: BoxConstraints(maxHeight: 50), // セリ上がり病対策
            child: TextField(
              controller: controller,
              decoration: InputDecoration(
                hintText: hintText ?? (initialValueText != null ? initialValueText : '1-5 の範囲（例：3）'),
                border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                focusedBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(8),
                  borderSide: BorderSide(color: Theme.of(context).primaryColor, width: 2),
                ),
                contentPadding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 16.0),
              ),
              keyboardType: TextInputType.number,
              readOnly: readOnly,
            ),
          ),
        ],
      ),
    );
  }
}

/// 日付入力フィールド（マスター用）
class MasterDateField extends StatelessWidget {
  final String label;
  final TextEditingController controller;
  final DateTime? picked;

  const MasterDateField({
    super.key,
    required this.label,
    required this.controller,
    this.picked,
  });

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Row(
        children: [
          Expanded(child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Text(label, style: const TextStyle(fontWeight: FontWeight.bold)),
              SizedBox(height: 4),
              Container(
                constraints: BoxConstraints(maxHeight: 50), // セリ上がり病対策
                child: TextField(
                  controller: controller,
                  decoration: InputDecoration(
                    border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                    enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                    focusedBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(8),
                      borderSide: BorderSide(color: Theme.of(context).primaryColor, width: 2),
                    ),
                    contentPadding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 16.0),
                  ),
                  readOnly: true,
                ),
              ),
            ],
          )),
          const SizedBox(width: 8),
          IconButton(
            icon: const Icon(Icons.calendar_today),
            onPressed: () async {
              final picked = await showDatePicker(
                context: context,
                initialDate: DateTime.now(),
                firstDate: DateTime(2020),
                lastDate: DateTime(2030),
              );
              if (picked != null) {
                controller.text = DateFormat('yyyy/MM/dd').format(picked);
              }
            },
          ),
        ],
      ),
    );
  }
}

/// テキストフィールド用カスタムフォーカスノード（QR コード生成対応）
class MasterTextFieldNode extends FocusNode {
  final GlobalKey key;
  final String? value;
  final bool isEditable;

  MasterTextFieldNode({Key? key, this.value, this.isEditable = true}) : key = GlobalKey();

  @override
  FocusableState get state => key.currentState as FocusableState;
}

/// テキストフィールド用カスタムフォーカスノード（QR コード生成対応）
class MasterNumberFieldNode extends FocusNode {
  final GlobalKey key;
  final String? value;
  final bool isEditable;

  MasterNumberFieldNode({Key? key, this.value, this.isEditable = true}) : key = GlobalKey();

  @override
  FocusableState get state => key.currentState as FocusableState;
}

/// リッチマスターテキストフィールド（汎用性高く、他のマスタ参照可）
class RichMasterTextField extends StatelessWidget {
  final String label;
  final TextEditingController controller;
  final TextInputType? keyboardType;
  final bool readOnly;
  final int? maxLines;
  final String? hintText;
  final String? initialValueText;

  const RichMasterTextField({
    super.key,
    required this.label,
    required this.controller,
    this.keyboardType,
    this.readOnly = false,
    this.maxLines,
    this.hintText,
    this.initialValueText,
  });

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(label, style: const TextStyle(fontWeight: FontWeight.bold)),
              if (initialValueText != null)
                IconButton(
                  icon: const Icon(Icons.copy),
                  onPressed: () => _copyToClipboard(initialValueText!),
                ),
            ],
          ),
          SizedBox(height: 4),
          Container(
            constraints: BoxConstraints(maxHeight: 50), // セリ上がり病対策
            child: TextField(
              controller: controller,
              decoration: InputDecoration(
                hintText: hintText ?? (initialValueText != null ? initialValueText : null),
                border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                focusedBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(8),
                  borderSide: BorderSide(color: Theme.of(context).primaryColor, width: 2),
                ),
                contentPadding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 16.0),
              ),
              keyboardType: keyboardType,
              readOnly: readOnly,
              maxLines: maxLines ?? 1,
            ),
          ),
        ],
      ),
    );
  }

  void _copyToClipboard(String text) async {
    try {
      await Clipboard.setData(ClipboardData(text: text));
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('コピーしました'), backgroundColor: Colors.green),
      );
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('コピーに失敗：$e'), backgroundColor: Colors.red),
      );
    }
  }
}

/// リッチマスター日付フィールド（汎用性高く、他のマスタ参照可）
class RichMasterDateField extends StatelessWidget {
  final String label;
  final TextEditingController controller;
  final DateTime? picked;

  const RichMasterDateField({
    super.key,
    required this.label,
    required this.controller,
    this.picked,
  });

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Row(
        children: [
          Expanded(child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(label, style: const TextStyle(fontWeight: FontWeight.bold)),
                  if (picked != null)
                    IconButton(
                      icon: const Icon(Icons.copy),
                      onPressed: () => _copyToDate(controller.text),
                    ),
                ],
              ),
              SizedBox(height: 4),
              Container(
                constraints: BoxConstraints(maxHeight: 50), // セリ上がり病対策
                child: TextField(
                  controller: controller,
                  decoration: InputDecoration(
                    border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                    enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                    focusedBorder: OutlineInputBorder(
                      borderRadius: BorderRadius.circular(8),
                      borderSide: BorderSide(color: Theme.of(context).primaryColor, width: 2),
                    ),
                    contentPadding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 16.0),
                  ),
                  readOnly: true,
                ),
              ),
            ],
          )),
          const SizedBox(width: 8),
          IconButton(
            icon: const Icon(Icons.calendar_today),
            onPressed: () async {
              final picked = await showDatePicker(
                context: context,
                initialDate: DateTime.now(),
                firstDate: DateTime(2020),
                lastDate: DateTime(2030),
              );
              if (picked != null) {
                controller.text = DateFormat('yyyy/MM/dd').format(picked);
              }
            },
          ),
        ],
      ),
    );
  }

  void _copyToDate(String dateStr) async {
    try {
      await Clipboard.setData(ClipboardData(text: dateStr));
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('日付をコピーしました'), backgroundColor: Colors.green),
      );
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('コピーに失敗：$e'), backgroundColor: Colors.red),
      );
    }
  }
}

/// リッチマスター数値フィールド（汎用性高く、他のマスタ参照可）
class RichMasterNumberField extends StatelessWidget {
  final String label;
  final TextEditingController controller;
  final String? hintText;
  final bool readOnly;
  final String? initialValueText;

  const RichMasterNumberField({
    super.key,
    required this.label,
    required this.controller,
    this.hintText,
    this.readOnly = false,
    this.initialValueText,
  });

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.only(bottom: 8.0),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Text(label, style: const TextStyle(fontWeight: FontWeight.bold)),
              if (initialValueText != null)
                IconButton(
                  icon: const Icon(Icons.copy),
                  onPressed: () => _copyToClipboard(initialValueText!),
                ),
            ],
          ),
          SizedBox(height: 4),
          Container(
            constraints: BoxConstraints(maxHeight: 50), // セリ上がり病対策
            child: TextField(
              controller: controller,
              decoration: InputDecoration(
                hintText: hintText ?? (initialValueText != null ? initialValueText : '1-5 の範囲（例：3）'),
                border: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                enabledBorder: OutlineInputBorder(borderRadius: BorderRadius.circular(8)),
                focusedBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.circular(8),
                  borderSide: BorderSide(color: Theme.of(context).primaryColor, width: 2),
                ),
                contentPadding: const EdgeInsets.symmetric(horizontal: 12.0, vertical: 16.0),
              ),
              keyboardType: TextInputType.number,
              readOnly: readOnly,
            ),
          ),
        ],
      ),
    );
  }

  void _copyToClipboard(String text) async {
    try {
      await Clipboard.setData(ClipboardData(text: text));
      ScaffoldMessenger.of(context).showSnackBar(
        const SnackBar(content: Text('コピーしました'), backgroundColor: Colors.green),
      );
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('コピーに失敗：$e'), backgroundColor: Colors.red),
      );
    }
  }
}