from fastapi import APIRouter, Depends, Form, Request
from sqlalchemy.orm import Session
from datetime import datetime
from typing import Optional
from database import get_db
import models, json
from auth import require_admin

router = APIRouter(prefix="/api/settings", tags=["settings"])

# 이미지 설정 기본값
IMAGE_DEFAULTS = {
    "image_compress_enabled": "true",
    "image_max_px":           "1024",
    "image_quality":          "85",
}

def upsert(db, key, value):
    s = db.query(models.SystemSetting).filter_by(key=key).first()
    if s:
        s.value      = value
        s.updated_at = datetime.now()
    else:
        db.add(models.SystemSetting(key=key, value=value))

# ── 공개 엔드포인트: 이미지 설정만 반환 (인증 불필요 — 신고 페이지에서 사용)
@router.get("/public")
def get_public_settings(db: Session = Depends(get_db)):
    rows = db.query(models.SystemSetting).filter(
        models.SystemSetting.key.in_(IMAGE_DEFAULTS.keys())
    ).all()
    result = dict(IMAGE_DEFAULTS)          # 기본값으로 채운 뒤
    for r in rows:
        result[r.key] = r.value            # DB 값으로 덮어쓰기
    return {
        "image_compress_enabled": result["image_compress_enabled"] == "true",
        "image_max_px":           int(result["image_max_px"]),
        "image_quality":          int(result["image_quality"]),
    }

# ── 관리자 전체 설정 조회
@router.get("")
def get_settings(db: Session = Depends(get_db), _=Depends(require_admin)):
    rows = db.query(models.SystemSetting).all()
    result = dict(IMAGE_DEFAULTS)
    for r in rows:
        result[r.key] = r.value
    return result

DEFAULT_ISSUE_TYPES = [
    {"key": "충전불가",   "label": "⚡ 충전 불가"},
    {"key": "화면오류",   "label": "🖥 화면 오류"},
    {"key": "케이블불량", "label": "🔌 케이블 불량"},
    {"key": "결제오류",   "label": "💳 결제 오류"},
    {"key": "외관손상",   "label": "🔨 외관 손상"},
    {"key": "에러발생",   "label": "⚠️ 에러 발생"},
    {"key": "기타",       "label": "📋 기타"},
]

@router.get("/issue-types")
def get_issue_types(db: Session = Depends(get_db)):
    row = db.query(models.SystemSetting).filter_by(key="issue_types").first()
    if row:
        return json.loads(row.value)
    return DEFAULT_ISSUE_TYPES

@router.put("/issue-types")
async def update_issue_types(request: Request, db: Session = Depends(get_db), _=Depends(require_admin)):
    items = await request.json()
    if not isinstance(items, list):
        from fastapi import HTTPException
        raise HTTPException(400, "배열 형식이어야 합니다.")
    upsert(db, "issue_types", json.dumps(items, ensure_ascii=False))
    db.commit()
    return {"ok": True}

DEFAULT_REPAIR_TYPES = [
    {"key": "부품교체", "label": "🔩 부품 교체"},
    {"key": "재시작",   "label": "🔄 재시작"},
    {"key": "설정변경", "label": "⚙️ 설정 변경"},
    {"key": "청소",     "label": "🧹 청소"},
    {"key": "배선정리", "label": "🔌 배선 정리"},
    {"key": "펌웨어",   "label": "💾 펌웨어 업데이트"},
    {"key": "기타",     "label": "📋 기타"},
]

@router.get("/repair-types")
def get_repair_types(db: Session = Depends(get_db)):
    row = db.query(models.SystemSetting).filter_by(key="repair_types").first()
    if row:
        return json.loads(row.value)
    return DEFAULT_REPAIR_TYPES

@router.put("/repair-types")
async def update_repair_types(request: Request, db: Session = Depends(get_db), _=Depends(require_admin)):
    items = await request.json()
    if not isinstance(items, list):
        from fastapi import HTTPException
        raise HTTPException(400, "배열 형식이어야 합니다.")
    upsert(db, "repair_types", json.dumps(items, ensure_ascii=False))
    db.commit()
    return {"ok": True}

# ── 관리자 설정 저장 (신고공개정책 + 이미지설정 + 처리시간기준 통합)
@router.put("")
def update_settings(
    report_visibility_policy: str         = Form(...),
    image_compress_enabled:   str         = Form("true"),
    image_max_px:             str         = Form("1024"),
    image_quality:            str         = Form("85"),
    time_metric_base:         str         = Form("occurred"),
    time_metric_worktime:     str         = Form("false"),
    db: Session                           = Depends(get_db),
    _                                     = Depends(require_admin)
):
    pairs = [
        ("report_visibility_policy", report_visibility_policy),
        ("image_compress_enabled",   image_compress_enabled),
        ("image_max_px",             image_max_px),
        ("image_quality",            image_quality),
        ("time_metric_base",         time_metric_base),
        ("time_metric_worktime",     time_metric_worktime),
    ]
    for key, val in pairs:
        upsert(db, key, val)
    db.commit()
    return {"ok": True}