flutterApp/lib/features/pv_control/presentation/widgets/pv_task_dialog.dart

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';

import 'package:maibu_satabot_v2/core/di/injection.dart';
import 'package:maibu_satabot_v2/features/devices/domain/entities/device_task_entity.dart';
import 'package:maibu_satabot_v2/features/devices/presentation/bloc/device_task_cubit.dart';
import 'package:maibu_satabot_v2/features/devices/presentation/bloc/device_task_state.dart';
import 'package:maibu_satabot_v2/core/localization/app_localizations.dart';

import '../theme/pv_colors.dart';

/// 「当前任务」弹窗：展示路径规划模块正在执行的任务。
///
/// 入口为遥控 HUD 顶栏右上第一项「任务」。数据源与路径规划作业面板同源——
/// 全局单例 [DeviceTaskCubit] 的 currentTask（用 BlocBuilder 实时订阅，
/// 任务状态变化自动刷新）；接口没给的字段统一显示「无」。
class PvTaskDialog {
  const PvTaskDialog._();

  static Future<void> show(BuildContext context) {
    return showDialog<void>(
      context: context,
      builder: (_) => BlocProvider.value(
        // 共享全局实例：弹窗只订阅状态，不负责 cubit 生命周期
        value: sl<DeviceTaskCubit>(),
        child: const _PvTaskDialogContent(),
      ),
    );
  }
}

class _PvTaskDialogContent extends StatelessWidget {
  const _PvTaskDialogContent();

  @override
  Widget build(BuildContext context) {
    return BlocBuilder<DeviceTaskCubit, DeviceTaskState>(
      builder: (context, state) {
        final task = state.currentTask;
        return Dialog(
          backgroundColor: Colors.transparent,
          insetPadding: const EdgeInsets.symmetric(horizontal: 60),
          child: Container(
            padding: const EdgeInsets.fromLTRB(16, 8, 12, 14),
            decoration: PvColors.panel(radius: 14),
            child: Column(
              mainAxisSize: MainAxisSize.min,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                // 标题行 + 关闭
                Row(
                  children: [
                    const Icon(
                      Icons.assignment_outlined,
                      color: PvColors.accentBright,
                      size: 20,
                    ),
                    const SizedBox(width: 8),
                    Text(
                      AppLocalizations.of(
                        context,
                      ).translate('pv_control.task_current'),
                      style: PvType.cardTitle,
                    ),
                    const Spacer(),
                    IconButton(
                      icon: const Icon(
                        Icons.close,
                        color: PvColors.textSecondary,
                        size: 20,
                      ),
                      visualDensity: VisualDensity.compact,
                      padding: EdgeInsets.zero,
                      constraints: const BoxConstraints(
                        minWidth: 32,
                        minHeight: 32,
                      ),
                      onPressed: () => Navigator.of(context).pop(),
                    ),
                  ],
                ),
                if (task == null)
                  const _EmptyTask()
                else
                  _TaskFields(task: task),
              ],
            ),
          ),
        );
      },
    );
  }
}

/// 无执行任务：路径规划侧 currentTask 为空（未下发/已完成/被清除）。
class _EmptyTask extends StatelessWidget {
  const _EmptyTask();

  @override
  Widget build(BuildContext context) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 18),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          const Icon(
            Icons.info_outline,
            color: PvColors.textTertiary,
            size: 18,
          ),
          const SizedBox(width: 8),
          Text(
            AppLocalizations.of(
              context,
            ).translate('pv_control.task_none_running'),
            style: PvType.body,
          ),
        ],
      ),
    );
  }
}

/// 任务数据项：与路径规划作业面板展示的字段对齐
/// （任务编号 / 设备 / 状态，另补路线、地块、创建时间），空字段显示「无」。
class _TaskFields extends StatelessWidget {
  const _TaskFields({required this.task});

  final DeviceTaskEntity task;

  @override
  Widget build(BuildContext context) {
    final tr = AppLocalizations.of(context);
    final (statusColor, statusText) = _statusOf(context, task);
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        _row(context, tr.translate('pv_control.task_field_no'), '#${task.id}'),
        _row(
          context,
          tr.translate('pv_control.task_field_device'),
          task.deviceId,
        ),
        _row(
          context,
          tr.translate('pv_control.task_field_status'),
          statusText,
          valueColor: statusColor,
        ),
        _row(
          context,
          tr.translate('pv_control.task_field_route'),
          task.routeId?.toString(),
        ),
        _row(
          context,
          tr.translate('pv_control.task_field_site'),
          task.siteId?.toString(),
        ),
        _row(
          context,
          tr.translate('pv_control.task_field_create_time'),
          task.createTime,
        ),
      ],
    );
  }

  /// 状态映射与路径规划页一致：NEW 蓝 / EXECUTING 绿 / PAUSE 橙，
  /// 其余用接口给的翻译文案；颜色换成本模块语义色保持风格统一。
  (Color, String) _statusOf(BuildContext context, DeviceTaskEntity t) {
    final tr = AppLocalizations.of(context);
    final translate = t.taskStatusTranslate.isNotEmpty
        ? t.taskStatusTranslate
        : t.taskStatus;
    switch (t.taskStatus) {
      case 'NEW':
        return (
          PvColors.info,
          translate.isEmpty
              ? tr.translate('pv_control.task_none_value')
              : tr.translate('pv_control.task_new'),
        );
      case 'EXECUTING':
        return (PvColors.online, tr.translate('pv_control.task_executing'));
      case 'PAUSE':
        return (PvColors.warning, tr.translate('pv_control.task_paused'));
      default:
        return (
          PvColors.textSecondary,
          translate.isEmpty
              ? tr.translate('pv_control.task_none_value')
              : translate,
        );
    }
  }

  Widget _row(
    BuildContext context,
    String label,
    String? value, {
    Color? valueColor,
  }) {
    final text = (value == null || value.isEmpty)
        ? AppLocalizations.of(context).translate('pv_control.task_none_value')
        : value;
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 5),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          SizedBox(
            width: 76,
            child: Text(label, style: PvType.label),
          ),
          Expanded(
            child: Text(
              text,
              style: PvType.body.copyWith(
                color: valueColor ?? PvColors.textPrimary,
                fontWeight: valueColor != null
                    ? FontWeight.w700
                    : FontWeight.w400,
              ),
            ),
          ),
        ],
      ),
    );
  }
}