/**
 * SettingsTab — 워크스페이스 설정 탭.
 * ReportBody 의 SectionWrapper 스타일을 그대로 따름.
 * 분석 대상 URL/소셜 핸들 편집 + 병원 기본 정보 확인.
 */
import { useState } from 'react';
import { Save, AlertCircle, Info } from 'lucide-react';
import { Input } from '@/shared/ui/input';
import { Button } from '@/shared/ui/button';
import { SectionWrapper } from '@/features/report/components/ui/SectionWrapper';
import { PLATFORM_META } from '../PlatformChips';
import type { PlatformKey, WorkspaceClinicProfile } from '../../types/workspace';

const EDITABLE_PLATFORMS: PlatformKey[] = [
  'website',
  'youtube',
  'instagram',
  'facebook',
  'naverPlace',
  'naverBlog',
  'gangnamUnni',
  'tiktok',
];

const PLATFORM_PLACEHOLDER: Record<PlatformKey, string> = {
  website: 'your-clinic.co.kr',
  instagram: 'instagram.com/your_clinic',
  youtube: 'youtube.com/@your_channel',
  facebook: 'facebook.com/your.page',
  tiktok: '@your_clinic',
  gangnamUnni: 'gangnamunni.com/hospitals/000',
  naverPlace: 'place.naver.com/hospital/0000000',
  naverBlog: 'blog.naver.com/your_blog',
};

interface SettingsTabProps {
  clinic: WorkspaceClinicProfile;
}

export function SettingsTab({ clinic }: SettingsTabProps) {
  const [values, setValues] = useState<Record<PlatformKey, string>>(() => {
    const initial: Record<PlatformKey, string> = {
      website: '',
      instagram: '',
      youtube: '',
      facebook: '',
      tiktok: '',
    };
    clinic.defaultTargets.forEach((t) => {
      initial[t.platform] = t.handle;
    });
    return initial;
  });
  const [saved, setSaved] = useState(false);

  const handleChange = (platform: PlatformKey, value: string) => {
    setValues((prev) => ({ ...prev, [platform]: value }));
    setSaved(false);
  };

  const handleSave = () => {
    // TODO: API 연동 — PATCH /api/clinics/:id
    setSaved(true);
  };

  return (
    <SectionWrapper
      id="settings"
      title="분석 대상 설정"
      subtitle="이 병원의 채널 정보를 등록해두면 새 분석 실행 시 자동으로 불러옵니다."
    >
      <div className="space-y-6">
        {/* Platform handles */}
        <div className="rounded-2xl border border-slate-100 bg-white p-6 shadow-[3px_4px_12px_rgba(0,0,0,0.06)]">
          <div className="mb-5">
            <h3 className="font-serif text-lg font-bold text-primary-900">채널 URL · 핸들</h3>
            <p className="text-xs text-slate-400 mt-1">
              분석에 사용할 공식 채널을 입력하세요. 비워두면 해당 채널은 분석에서 제외됩니다.
            </p>
          </div>

          <div className="space-y-3">
            {EDITABLE_PLATFORMS.map((platform) => {
              const meta = PLATFORM_META[platform];
              const Icon = meta.Icon;
              return (
                <div key={platform}>
                  <div className="flex items-center gap-3">
                    <label
                      htmlFor={`platform-${platform}`}
                      className="flex items-center gap-2 w-32 flex-shrink-0"
                    >
                      <span
                        className="flex items-center justify-center rounded-full w-7 h-7"
                        style={{ backgroundColor: `${meta.color}14` }}
                      >
                        <Icon size={14} style={{ color: meta.color }} />
                      </span>
                      <span className="text-xs font-medium text-primary-900">{meta.label}</span>
                    </label>
                    <Input
                      id={`platform-${platform}`}
                      value={values[platform]}
                      onChange={(e) => handleChange(platform, e.target.value)}
                      placeholder={PLATFORM_PLACEHOLDER[platform]}
                      className="flex-1 h-10 text-sm bg-slate-50 border border-slate-200 rounded-xl focus:bg-white focus:border-[#9B8AD4] focus:ring-2 focus:ring-[#9B8AD4]/20"
                    />
                  </div>
                  {platform === 'website' && (
                    <p className="ml-[140px] mt-1.5 flex items-start gap-1.5 text-[11px] text-slate-500 leading-relaxed">
                      <Info size={11} className="mt-0.5 shrink-0 text-brand-purple-vivid" />
                      홈페이지를 변경하면 다음 분석부터 병원 기본 정보(이름·주소·진료시간·의료진 등)가 새 사이트 기준으로 함께 갱신돼요.
                    </p>
                  )}
                </div>
              );
            })}
          </div>

          <div className="mt-6 flex items-center justify-between border-t border-slate-100 pt-4">
            <p
              className={`inline-flex items-center gap-1.5 text-xs ${
                saved ? 'text-emerald-600' : 'text-slate-400'
              }`}
            >
              {saved ? (
                <>
                  <span className="w-1.5 h-1.5 rounded-full bg-emerald-500" aria-hidden />
                  로컬에 저장되었습니다 (API 연동 후속 작업)
                </>
              ) : (
                <>
                  <AlertCircle size={12} className="text-slate-300" />
                  저장은 아직 서버에 반영되지 않습니다.
                </>
              )}
            </p>
            <Button
              type="button"
              onClick={handleSave}
              className="inline-flex items-center gap-1.5 px-5 py-2.5 rounded-full text-xs font-semibold text-white bg-gradient-to-r from-[#4F1DA1] to-[#021341] shadow-sm hover:opacity-90 transition-all"
            >
              <Save size={13} />변경 저장
            </Button>
          </div>
        </div>
      </div>
    </SectionWrapper>
  );
}