package handler

import (
	"net/http"

	"bj_power_mes/common/httpx"
	"bj_power_mes/internal/logic"
	"bj_power_mes/internal/svc"
)

// CreateInspectionHandler POST /inspections（PAD 巡检终端提交记录）
func CreateInspectionHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		var req logic.InspectionReq
		if err := httpx.ParseJSON(r, &req); err != nil {
			httpx.BadRequest(w, "请求体解析失败")
			return
		}
		// 按钮级权限：按记录类型校验（块2/8）
		categoryPerm := map[string]string{
			"CHECKIN": "sys.inspect:checkin",
			"POINT":   "sys.inspect:point",
			"PROCESS": "sys.inspect:process",
			"DONE":    "sys.inspect:done",
			"ALARM":   "sys.inspect:alarm",
		}
		if code, ok := categoryPerm[req.Category]; ok && !userHasPerm(r, svcCtx, code) {
			httpx.FailHTTP(w, http.StatusForbidden, "无操作权限："+code)
			return
		}
		if err := logic.New(svcCtx).CreateInspection(r.Context(), req, operator(r, "")); err != nil {
			httpx.Fail(w, 2301, err.Error())
			return
		}
		httpx.OkMessage(w, "巡检记录已提交", nil)
	}
}

// ListInspectionsHandler GET /inspections?category=&operator=&from=&to=&page=&pageSize=
// 返回 {list, total}，后端真分页（created_at desc / id desc，最新置顶）
func ListInspectionsHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		q := r.URL.Query()
		page := atoiDefault(q.Get("page"), 1)
		pageSize := atoiDefault(q.Get("pageSize"), 50)
		if page < 1 {
			page = 1
		}
		if pageSize < 1 || pageSize > 1000 {
			pageSize = 50
		}
		data, total, err := logic.New(svcCtx).ListInspectionsPaged(r.Context(),
			q.Get("category"), q.Get("operator"), q.Get("from"), q.Get("to"),
			q.Get("orderNo"), q.Get("stationNo"), page, pageSize)
		if err != nil {
			httpx.Fail(w, 2302, err.Error())
			return
		}
		httpx.Ok(w, map[string]any{"list": data, "total": total})
	}
}

// UploadPhotoHandler POST /inspections/upload（巡检拍照上传，返回文件名）
func UploadPhotoHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		if err := r.ParseMultipartForm(svcCtx.Config.Upload.MaxMB << 20); err != nil {
			httpx.BadRequest(w, "上传文件过大或格式错误")
			return
		}
		name, err := saveUploadFile(r, "file", svcCtx.Config.Upload.Dir)
		if err != nil {
			httpx.Fail(w, 2303, "照片保存失败："+err.Error())
			return
		}
		httpx.Ok(w, map[string]any{"filename": name, "url": "/api/v1/files/" + name})
	}
}