import { gtcDocuments, type GtcDocument, type GtcDocumentWithRelations } from "@/db/schema/gtc"
import {
  createSearchParamsCache,
  parseAsArrayOf,
  parseAsInteger,
  parseAsString,
  parseAsStringEnum,
} from "nuqs/server"
import * as z from "zod"
import { getFiltersStateParser, getSortingStateParser } from "@/lib/parsers"
import { checkProjectExists } from "./service"

export const searchParamsCache = createSearchParamsCache({
  flags: parseAsArrayOf(z.enum(["advancedTable", "floatingBar"])).withDefault(
    []
  ),
  page: parseAsInteger.withDefault(1),
  perPage: parseAsInteger.withDefault(10),
  sort: getSortingStateParser<GtcDocumentWithRelations>().withDefault([
    { id: "updatedAt", desc: true },
  ]),
  // 검색 필터들
  type: parseAsStringEnum(["standard", "project"]).withDefault(""),
  projectId: parseAsInteger.withDefault(0),
  // advanced filter
  filters: getFiltersStateParser().withDefault([]),
  joinOperator: parseAsStringEnum(["and", "or"]).withDefault("and"),
  search: parseAsString.withDefault(""),
})

export const createGtcDocumentSchema = z.object({
  type: z.enum(["standard", "project"]),
  projectId: z
    .number()
    .nullable()
    .optional()
    .refine(
      async (projectId, ctx) => {
        // 프로젝트 타입인 경우 projectId 필수
        if (ctx.parent.type === "project" && !projectId) {
          ctx.addIssue({
            code: z.ZodIssueCode.custom,
            message: "Project is required for project type GTC",
          })
          return false
        }
        
        // 표준 타입인 경우 projectId null이어야 함
        if (ctx.parent.type === "standard" && projectId) {
          ctx.addIssue({
            code: z.ZodIssueCode.custom,
            message: "Project should not be set for standard type GTC",
          })
          return false
        }

        // 프로젝트 ID가 유효한지 검사
        if (projectId) {
          const exists = await checkProjectExists(projectId)
          if (!exists) {
            ctx.addIssue({
              code: z.ZodIssueCode.custom,
              message: "Invalid project ID",
            })
            return false
          }
        }

        return true
      }
    ),
  revision: z.number().min(0).default(0),
  editReason: z.string().optional(),
})

export const updateGtcDocumentSchema = z.object({
  editReason: z.string().optional(),
  isActive: z.boolean().optional(),
})

// 리비전 업데이트용 스키마
export const createNewRevisionSchema = z.object({
  editReason: z.string().min(1, "Edit reason is required for new revision"),
})

export type GetGtcDocumentsSchema = Awaited<ReturnType<typeof searchParamsCache.parse>>
export type CreateGtcDocumentSchema = z.infer<typeof createGtcDocumentSchema>
export type UpdateGtcDocumentSchema = z.infer<typeof updateGtcDocumentSchema>
export type CreateNewRevisionSchema = z.infer<typeof createNewRevisionSchema>