/**
 * AgentSettings — Agent 配置 Tab
 *
 * 从 SettingsModal.tsx 提取（v0.4.1 拆分）。
 * 功能：迭代次数 / 总超时 / 工具超时 / 确认超时 / 思考模式配置。
 */

import {
  TextField,
  Select,
  MenuItem,
  Stack,
  Typography,
  Checkbox,
  FormControlLabel,
  InputLabel,
  FormControl,
} from '@mui/material';
import { useConfig } from './useConfig';
// v0.7.4 P3-1: 文案出层（字典含注册副作用，须在 t() 使用前 import）
import { t } from '@renderer/lib/i18n';
import '@renderer/lib/i18n-strings';

export function AgentSettings() {
  const [maxIter, setMaxIter] = useConfig('agent.maxIterations', 20);
  const [timeout, setTimeout_] = useConfig('agent.totalTimeoutMs', 600000);
  const [thinking, setThinking] = useConfig('agent.enableThinking', true);
  const [thinkingEffort, setThinkingEffort] = useConfig('agent.thinkingEffort', 'high');
  // v0.7.3 P3-1: REFLECTING 状态开关（引擎侧 agent.enableReflection，默认关闭）
  const [reflection, setReflection] = useConfig('agent.enableReflection', false);
  const [confirmTimeout, setConfirmTimeout] = useConfig('agent.confirmationTimeoutMs', 120000);
  const [toolExecTimeout, setToolExecTimeout] = useConfig('agent.toolExecutionTimeoutMs', 120000);

  const MAX_ITER_OPTIONS = [10, 20, 50, 85, 128, 256, 512];

  return (
    <Stack spacing={2}>
      <Typography variant="subtitle2" sx={{ fontWeight: 600 }}>
        {t('settings.agent.title')}
      </Typography>
      <FormControl size="small">
        <InputLabel>{t('settings.agent.maxIterations')}</InputLabel>
        <Select
          value={maxIter}
          label={t('settings.agent.maxIterations')}
          onChange={(e) => setMaxIter(e.target.value as number)}
        >
          {MAX_ITER_OPTIONS.map((n) => (
            <MenuItem key={n} value={n}>
              {n}
            </MenuItem>
          ))}
        </Select>
      </FormControl>
      <TextField
        size="small"
        label={t('settings.agent.totalTimeout')}
        type="number"
        value={timeout / 1000}
        onChange={(e) => {
          const v = Number(e.target.value);
          if (v >= 120 && v <= 3600) setTimeout_(v * 1000);
        }}
        slotProps={{ htmlInput: { min: 120, max: 3600, step: 30 } }}
      />
      <TextField
        size="small"
        label={t('settings.agent.toolExecTimeout')}
        type="number"
        value={toolExecTimeout / 1000}
        onChange={(e) => {
          const v = Number(e.target.value);
          if (v >= 10) setToolExecTimeout(v * 1000);
        }}
        slotProps={{ htmlInput: { min: 10, step: 10 } }}
        helperText={t('settings.agent.toolExecTimeoutHelper')}
      />
      <TextField
        size="small"
        label={t('settings.agent.confirmTimeout')}
        type="number"
        value={confirmTimeout / 1000}
        onChange={(e) => {
          const v = Number(e.target.value);
          if (v >= 30 && v <= 600) setConfirmTimeout(v * 1000);
        }}
        slotProps={{ htmlInput: { min: 30, max: 600, step: 10 } }}
        helperText={t('settings.agent.confirmTimeoutHelper')}
      />
      <FormControlLabel
        control={
          <Checkbox
            checked={thinking}
            onChange={(e) => setThinking(e.target.checked)}
            size="small"
          />
        }
        label={<Typography variant="body2">{t('settings.agent.enableThinking')}</Typography>}
      />
      {thinking && (
        <FormControl size="small">
          <InputLabel>{t('settings.agent.thinkingEffort')}</InputLabel>
          <Select
            value={thinkingEffort}
            label={t('settings.agent.thinkingEffort')}
            onChange={(e) => setThinkingEffort(e.target.value)}
          >
            <MenuItem value="low">Low</MenuItem>
            <MenuItem value="medium">Medium</MenuItem>
            <MenuItem value="high">High</MenuItem>
            <MenuItem value="max">Max</MenuItem>
          </Select>
        </FormControl>
      )}
      {/* v0.7.3 P3-1: enableReflection 接线（此前为死配置）— 引擎 REFLECTING 状态开关 */}
      <FormControlLabel
        control={
          <Checkbox
            checked={reflection}
            onChange={(e) => setReflection(e.target.checked)}
            size="small"
          />
        }
        label={
          <Typography variant="body2">
            {t('settings.agent.enableReflection')}
            <Typography
              variant="caption"
              sx={{ display: 'block', color: 'text.disabled', fontSize: 10 }}
            >
              {t('settings.agent.enableReflectionHelper')}
            </Typography>
          </Typography>
        }
      />
    </Stack>
  );
}