/* eslint-disable max-lines-per-function, complexity -- 页面组件集中编排筛选、表单与弹层，拆散会割裂数据流；纯逻辑已抽到 *-utils.ts */
import { Button, Input, Switch } from '@douyinfe/semi-ui-19';
import type { SystemConfig } from '@lingxi/shared';
import { IconAlert, IconShare } from '@lingxi/ui/icons';
import type { ReactNode } from 'react';

import { configValueText, formatConfigTime, namingPreview, rangeTextOf } from './config-utils';

const SHARED_FIELD_KEYS: ReadonlySet<string> = new Set([
  'limit.customer.base_field',
  'limit.customer.gen_field',
]);

function LabelBlock({ config, dirty }: { config: SystemConfig; dirty: boolean }): ReactNode {
  return (
    <div className="lx-settings-config__label">
      <div className="lx-settings-config__title">
        <b>{config.label}</b>
        {dirty ? <span className="lx-settings-dirty-tag">未保存</span> : null}
        <code>{config.key}</code>
      </div>
      <p className="lx-settings-config__desc">{config.description}</p>
      <p className="lx-settings-config__impact">
        <IconAlert size={13} />
        <span>{config.impact}</span>
      </p>
      {SHARED_FIELD_KEYS.has(config.key) ? (
        <p className="lx-settings-config__shared">
          <IconShare size={12} />
          <span>A3 客户字段、表单校验与任务提交共用（R-26）</span>
        </p>
      ) : null}
    </div>
  );
}

function ValueMeta({ config, error }: { config: SystemConfig; error: string | null }): ReactNode {
  if (error !== null) return <span className="lx-settings-config__err">{error}</span>;
  const range = rangeTextOf(config);
  return (
    <span className="lx-settings-config__meta">
      {range === '' ? null : `${range} · `}v{config.version} · {config.updatedBy ?? '—'}{' '}
      {formatConfigTime(config.updatedAt)}
    </span>
  );
}

export interface ConfigRowProps {
  config: SystemConfig;
  raw: string;
  dirty: boolean;
  readOnly: boolean;
  error: string | null;
  editingPattern: boolean;
  namingMaxLength: number;
  onRawChange: (raw: string) => void;
  onEditPattern: () => void;
  onCollapsePattern: () => void;
}

/** 单个配置项：文本 / 数字 / 开关；命名模板（pattern）展开行内编辑 + 校验提示 */
export function ConfigRow({
  config,
  raw,
  dirty,
  readOnly,
  error,
  editingPattern,
  namingMaxLength,
  onRawChange,
  onEditPattern,
  onCollapsePattern,
}: ConfigRowProps): ReactNode {
  if (config.type === 'pattern') {
    const preview = namingPreview(raw, namingMaxLength);
    const patternError = error ?? preview.error;
    return (
      <div className={`lx-settings-config is-pattern${dirty ? ' is-dirty' : ''}`}>
        <LabelBlock config={config} dirty={dirty} />
        {editingPattern && !readOnly ? (
          <div className="lx-settings-pattern">
            <Input value={raw} maxLength={200} aria-label="命名规则" onChange={onRawChange} />
            <div className="lx-settings-pattern__hint">
              <span className={patternError === null ? 'is-ok' : 'is-bad'}>
                {patternError === null ? '校验通过' : `校验未通过：${patternError}`}
              </span>
              <span>
                {' '}
                · {raw.length} / {namingMaxLength} 字符 · 点击右侧占位符插入
              </span>
            </div>
            <Button size="small" theme="borderless" onClick={onCollapsePattern}>
              收起编辑
            </Button>
          </div>
        ) : (
          <div className="lx-settings-pattern__value">
            <code>{configValueText(config, raw)}</code>
            {readOnly ? null : (
              <Button
                size="small"
                theme="borderless"
                onClick={() => {
                  onEditPattern();
                }}
              >
                编辑
              </Button>
            )}
          </div>
        )}
      </div>
    );
  }

  const control =
    config.type === 'boolean' ? (
      <span className="lx-settings-config__switch">
        <span>{raw === 'true' ? '开启' : '关闭'}</span>
        <Switch
          checked={raw === 'true'}
          disabled={readOnly || !config.editable}
          aria-label={config.label}
          onChange={(checked) => {
            onRawChange(checked ? 'true' : 'false');
          }}
        />
      </span>
    ) : (
      <span className={`lx-settings-config__control${error === null ? '' : ' is-error'}`}>
        <Input
          type={config.type === 'number' ? 'number' : 'text'}
          value={raw}
          maxLength={config.type === 'text' ? (config.maxLength ?? 120) : undefined}
          disabled={readOnly || !config.editable}
          aria-label={config.label}
          onChange={onRawChange}
        />
        {config.unit === null || config.unit === '' ? null : (
          <span className="lx-settings-config__unit">{config.unit}</span>
        )}
      </span>
    );

  return (
    <div className={`lx-settings-config${dirty ? ' is-dirty' : ''}`}>
      <LabelBlock config={config} dirty={dirty} />
      <div className="lx-settings-config__value">
        {control}
        <ValueMeta config={config} error={error} />
      </div>
    </div>
  );
}