/* eslint-disable max-lines-per-function -- 提交表单（客户 / 条数 / 模式 / 备注 + 实时预估 + 幂等提交）集中在一处便于追踪 */
/**
 * A6 提交演练任务弹窗（方案 A：居中 Modal 560）。
 *
 * - 预估条数 / 成本 / 时长读系统配置（useTaskEstimateConfig），缺省回退 shared 默认值；
 * - 同一次打开复用同一 Idempotency-Key（失败重试不会创建重复任务），关闭后销毁；
 * - 提交中禁用按钮防重复提交；失败保留输入并 toast 错误码 / trace_id。
 */
import { Button, Input, InputNumber, Modal, Select } from '@douyinfe/semi-ui-19';
import type { MediaTaskDemoMode, MediaTaskSubmitResponse } from '@lingxi/shared';
import { notifyError, notifySuccess } from '@lingxi/ui';
import { IconAlert, IconCheck, IconPlay } from '@lingxi/ui/icons';
import type { ReactNode } from 'react';
import { useState } from 'react';

import { createTaskIdempotencyKey } from '@/api/media';
import { formatMoney, formatSeconds, formatTaskNo } from '@/components/tasks';
import { useSubmitMediaTaskMutation, useTaskEstimateConfig } from '@/hooks/queries/use-media-tasks';

import { describeRequestError, TASK_DEMO_MODE_LABELS } from './task-filter-utils';

export interface TaskSubmitCustomer {
  id: string;
  name: string;
  industryName: string;
}

export interface TaskSubmitModalProps {
  customers: readonly TaskSubmitCustomer[];
  loadingCustomers: boolean;
  onClose: () => void;
  onSubmitted: (result: MediaTaskSubmitResponse) => void;
}

const DEFAULT_ITEM_COUNT = 8;
const NOTE_MAX_LENGTH = 200;

const DEMO_MODES: readonly { value: MediaTaskDemoMode; description: string }[] = [
  { value: 'success', description: '逐项成功，结束后进入待预览' },
  { value: 'mixed', description: '按序号模拟失败，可重试失败项' },
  { value: 'fail', description: '验证全部失败与失败原因展示' },
];

function clampCount(value: number, max: number): number {
  if (!Number.isFinite(value)) return DEFAULT_ITEM_COUNT;
  return Math.max(1, Math.min(max, Math.round(value)));
}

/** 提交演练任务弹窗（仅 material:render 由页面控制挂载） */
export function TaskSubmitModal({
  customers,
  loadingCustomers,
  onClose,
  onSubmitted,
}: TaskSubmitModalProps): ReactNode {
  const estimate = useTaskEstimateConfig();
  const submit = useSubmitMediaTaskMutation();
  /** 同一次打开复用同一幂等键；组件随弹窗关闭卸载，下次打开自动换新 */
  const [idempotencyKey] = useState(createTaskIdempotencyKey);
  const [customerId, setCustomerId] = useState('');
  const [itemCount, setItemCount] = useState(() =>
    clampCount(DEFAULT_ITEM_COUNT, Math.max(1, estimate.config.maxItems)),
  );
  const [mode, setMode] = useState<MediaTaskDemoMode>('mixed');
  const [note, setNote] = useState('');

  const maxItems = Math.max(1, estimate.config.maxItems);
  const selectedCustomerId = customerId !== '' ? customerId : (customers[0]?.id ?? '');
  const count = clampCount(itemCount, maxItems);
  const estimatedCost = Math.round(count * estimate.config.costPerItem * 100) / 100;
  const estimatedSeconds = count * estimate.config.secondsPerItem;
  const canSubmit = selectedCustomerId !== '' && !submit.isPending;

  const handleSubmit = async (): Promise<void> => {
    if (!canSubmit) return;
    const noteText = note.trim();
    try {
      const result = await submit.mutateAsync({
        input: {
          type: 'demo',
          customerId: selectedCustomerId,
          itemCount: count,
          mode,
          ...(noteText === '' ? {} : { note: noteText }),
        },
        idempotencyKey,
      });
      notifySuccess(`已提交，任务号 ${formatTaskNo(result.taskId)}`);
      onSubmitted(result);
    } catch (error) {
      const info = describeRequestError(error, '提交失败，请稍后重试');
      notifyError(info.message, info.traceId);
    }
  };

  const customerOptions = customers.map((customer) => ({
    value: customer.id,
    label: `${customer.name} · ${customer.industryName}`,
  }));

  return (
    <Modal
      visible
      title="提交演练任务"
      width={560}
      maskClosable={false}
      closeOnEsc={!submit.isPending}
      onCancel={() => {
        if (!submit.isPending) onClose();
      }}
      footer={
        <div className="lx-task-modal__footer">
          <Button onClick={onClose} disabled={submit.isPending}>
            取消
          </Button>
          <Button
            theme="solid"
            type="primary"
            icon={<IconPlay size={14} />}
            loading={submit.isPending}
            disabled={!canSubmit}
            onClick={() => {
              void handleSubmit();
            }}
          >
            提交演练任务
          </Button>
        </div>
      }
    >
      <div className="lx-task-form">
        <div className="lx-task-form__row">
          <label className="lx-task-field">
            <span className="lx-task-field__label">
              客户<i className="lx-task-field__required">*</i>
            </span>
            <Select
              value={selectedCustomerId}
              optionList={customerOptions}
              loading={loadingCustomers}
              placeholder={customers.length === 0 ? '暂无可选客户' : '选择客户'}
              disabled={customers.length === 0}
              onChange={(value) => {
                setCustomerId(typeof value === 'string' ? value : '');
              }}
            />
            {selectedCustomerId === '' ? (
              <span className="lx-task-field__error">请选择客户</span>
            ) : null}
          </label>
          <label className="lx-task-field">
            <span className="lx-task-field__label">
              任务条数<i className="lx-task-field__required">*</i>
              <em className="lx-task-field__hint">1–{maxItems} 项</em>
            </span>
            <InputNumber
              value={count}
              min={1}
              max={maxItems}
              precision={0}
              disabled={submit.isPending}
              onChange={(value) => {
                if (typeof value === 'number') setItemCount(clampCount(value, maxItems));
              }}
            />
          </label>
        </div>

        <div className="lx-task-field">
          <span className="lx-task-field__label">
            演练模式<i className="lx-task-field__required">*</i>
            <em className="lx-task-field__hint">用于验证成功 / 部分失败 / 失败链路</em>
          </span>
          <div className="lx-task-modes" role="group" aria-label="演练模式">
            {DEMO_MODES.map((option) => {
              const active = mode === option.value;
              return (
                <button
                  key={option.value}
                  type="button"
                  className={`lx-task-mode${active ? ' is-active' : ''}`}
                  aria-pressed={active}
                  onClick={() => {
                    setMode(option.value);
                  }}
                >
                  <b>
                    {active ? <IconCheck size={12} /> : null}
                    {TASK_DEMO_MODE_LABELS[option.value]}
                  </b>
                  <span>{option.description}</span>
                </button>
              );
            })}
          </div>
        </div>

        <label className="lx-task-field">
          <span className="lx-task-field__label">
            备注
            <em className="lx-task-field__hint">
              选填，最多 {NOTE_MAX_LENGTH} 字（{note.length}/{NOTE_MAX_LENGTH}）
            </em>
          </span>
          <Input
            value={note}
            maxLength={NOTE_MAX_LENGTH}
            placeholder="例如：验证部分失败与仅重试失败项"
            disabled={submit.isPending}
            onChange={(value) => {
              setNote(value);
            }}
          />
        </label>

        <div className="lx-task-estimate">
          <b>
            <IconAlert size={13} />
            提交预估
            {estimate.isLoading ? <em className="lx-task-estimate__loading">读取配置中…</em> : null}
          </b>
          <div className="lx-task-estimate__grid">
            <div>
              <span>任务条数</span>
              <strong>{count} 项</strong>
            </div>
            <div>
              <span>预估成本</span>
              <strong>{formatMoney(estimatedCost)}</strong>
            </div>
            <div>
              <span>预估时长</span>
              <strong>{formatSeconds(estimatedSeconds)}</strong>
            </div>
          </div>
          <p className="lx-task-estimate__hint">
            成本与时长按平台配置预估（{formatMoney(estimate.config.costPerItem)} / 项、
            {formatSeconds(estimate.config.secondsPerItem)} / 项）；重复提交不会重复创建任务。
          </p>
        </div>
      </div>
    </Modal>
  );
}