// 云账单预警规则弹窗（新建/编辑）— 自包含状态，从 CloudBilling 提取 // Logan.Li
import { useState, useEffect } from 'react';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { Switch } from '@/components/ui/switch';
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
} from '@/components/ui/dialog';
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from '@/components/ui/select';
import { Loader2 } from 'lucide-react';
import { toast } from 'sonner';
import { billingApi } from '@/api';
import { providerLabels } from './CloudBillingHelpers';
import type { JsonData } from '@/types/common';
import { useTranslation } from 'react-i18next';

const emptyRule = { name: '', provider: '', metric: 'daily', threshold: '', operator: '>', enabled: true };

interface Props {
  open: boolean;
  onOpenChange: (open: boolean) => void;
  editingRule: JsonData | null;
  onSuccess: () => void;
}

export function BillingRuleDialog({ open, onOpenChange, editingRule, onSuccess }: Props) {
  const { t } = useTranslation();
  const [form, setForm] = useState<JsonData>(emptyRule);
  const [submitting, setSubmitting] = useState(false);

  // 弹窗打开时初始化表单 // Logan.Li
  useEffect(() => {
    if (!open) return;
    if (editingRule) {
      setForm({
        name: editingRule.name,
        provider: editingRule.provider || '',
        metric: editingRule.metric || 'daily',
        threshold: editingRule.threshold,
        operator: editingRule.operator || '>',
        enabled: editingRule.enabled,
      });
    } else {
      setForm({ ...emptyRule });
    }
  }, [open, editingRule]);

  const handleSave = async () => {
    if (!form.name || !form.threshold) {
      toast.error(t('cloud.billingruledialog.sd36855'));
      return;
    }
    setSubmitting(true);
    try {
      const data = { ...form, threshold: parseFloat(form.threshold) };
      if (editingRule) {
        await billingApi.updateAlertRule(editingRule.id, data);
      } else {
        await billingApi.createAlertRule(data);
      }
      onOpenChange(false);
      onSuccess();
      toast(t('common.savedSuccessfully'));
    } catch (e) {
      toast.error(t('common.saveFailed'), { description: (e as JsonData).message });
    } finally {
      setSubmitting(false);
    }
  };

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="max-w-md">
        <DialogHeader>
          <DialogTitle>{editingRule ? t('cloud.billingruledialog.sb8cfa0') : t('cloud.billingruledialog.sd58c54')}</DialogTitle>
          <DialogDescription>{t('cloud.billingruledialog.s75227f')}</DialogDescription>
        </DialogHeader>
        <div className="space-y-3">
          <div>
            <Label className="text-sm text-[var(--dg-text-secondary)]">{t('cloud.billingruledialog.s34fe90')}</Label>
            <Input className="mt-1" placeholder=t('cloud.billingruledialog.sc147ac') value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} />
          </div>
          <div className="grid grid-cols-2 gap-3">
            <div>
              <Label className="text-sm text-[var(--dg-text-secondary)]">{t('common.vendor')}</Label>
              <Select value={form.provider || 'all'} onValueChange={(v) => setForm({ ...form, provider: v === 'all' ? '' : v })}>
                <SelectTrigger className="mt-1"><SelectValue /></SelectTrigger>
                <SelectContent>
                  <SelectItem value="all">{t('cloud.billingruledialog.sc356f1')}</SelectItem>
                  {Object.entries(providerLabels).map(([k, v]) => (
                    <SelectItem key={k} value={k}>{v}</SelectItem>
                  ))}
                </SelectContent>
              </Select>
            </div>
            <div>
              <Label className="text-sm text-[var(--dg-text-secondary)]">{t('cloud.colMetric')}</Label>
              <Select value={form.metric} onValueChange={(v) => setForm({ ...form, metric: v })}>
                <SelectTrigger className="mt-1"><SelectValue /></SelectTrigger>
                <SelectContent>
                  <SelectItem value="daily">{t('cloud.dailyCost')}</SelectItem>
                  <SelectItem value="monthly">{t('cloud.monthlyAccumulated')}</SelectItem>
                </SelectContent>
              </Select>
            </div>
          </div>
          <div className="grid grid-cols-2 gap-3">
            <div>
              <Label className="text-sm text-[var(--dg-text-secondary)]">{t('cloud.billingruledialog.sd7650e')}</Label>
              <Select value={form.operator} onValueChange={(v) => setForm({ ...form, operator: v })}>
                <SelectTrigger className="mt-1"><SelectValue /></SelectTrigger>
                <SelectContent>
                  <SelectItem value=">">{t('cloud.billingruledialog.s3dba97')}</SelectItem>
                  <SelectItem value=">=">{t('cloud.billingruledialog.s8e1e26')}</SelectItem>
                  <SelectItem value="<">{t('cloud.billingruledialog.s0196c1')}</SelectItem>
                  <SelectItem value="<=">{t('cloud.billingruledialog.s45c301')}</SelectItem>
                </SelectContent>
              </Select>
            </div>
            <div>
              <Label className="text-sm text-[var(--dg-text-secondary)]">{t('cloud.billingruledialog.s11f9fb')}</Label>
              <Input type="number" step="0.01" className="mt-1" placeholder="500.00" value={form.threshold} onChange={(e) => setForm({ ...form, threshold: e.target.value })} />
            </div>
          </div>
          <div className="flex items-center gap-2">
            <Switch checked={form.enabled} onCheckedChange={(v) => setForm({ ...form, enabled: v })} />
            <Label className="text-sm text-[var(--dg-text-secondary)]">{t('common.enable')}</Label>
          </div>
        </div>
        <DialogFooter>
          <Button variant="outline" onClick={() => onOpenChange(false)}>{t('common.cancel')}</Button>
          <Button onClick={handleSave} disabled={submitting}>
            {submitting && <Loader2 className="h-4 w-4 mr-1 animate-spin" />}
            保存
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}