import {z} from 'zod'

export type GetApiV2PlacesArgs = {search?: string | undefined, placeCategoryId?: string | undefined, 'placeSubCategoryId[]'?: Array<string> | undefined, siteId?: string | undefined, buildingId?: string | undefined, floorId?: string | undefined, departmentId?: string | undefined};

export type GetApiV2PlacesOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const placeCategory = z.object({id: z.string(), name: z.string(), showInMenu: z.boolean().optional(), color: z.string().optional(), markerUrl: z.string().optional(), priority: z.number().optional(), highlighted: z.boolean().optional()});

export const placeCategoryOverview = z.object({id: z.string(), name: z.string(), showInMenu: z.boolean().optional(), color: z.string().optional(), markerUrl: z.string().optional(), priority: z.number().optional(), highlighted: z.boolean().optional(), subCategory: placeCategory.optional()});

export const geoJsonPolygon = z.object({type: z.literal("Feature"), geometry: z.object({type: z.literal("Polygon"), coordinates: z.array(z.array(z.array(z.number())))})});

export const buildingOverview = z.object({id: z.string(), name: z.string(), siteId: z.string(), category: placeCategoryOverview, geoJson: geoJsonPolygon.optional()});

export const floor = z.object({id: z.string(), name: z.string(), level: z.number()});

export const department = z.object({id: z.string(), name: z.string().nullable(), type: z.string()});

export const placeOverview = z.object({latitude: z.number(), longitude: z.number(), id: z.string(), room: z.object({id: z.string(), name: z.string()}), category: placeCategoryOverview, site: z.object({id: z.string(), name: z.string()}), building: buildingOverview, floor: floor, department: department});

export const getApiV2PlacesResponse = z.object({data: z.array(placeOverview)});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Search places | Cerca luoghi
 * 
 * GET /v2/places
 */
export const getApiV2Places = async (args: GetApiV2PlacesArgs, options?: GetApiV2PlacesOptions) => {
const {baseUrl = "https://app.didattica.polito.it/api", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.search != null) query.append("search", String(args.search))
if (args.placeCategoryId != null) query.append("placeCategoryId", String(args.placeCategoryId))
for (const item of args['placeSubCategoryId[]'] ?? []) query.append("placeSubCategoryId[]", String(item))
if (args.siteId != null) query.append("siteId", String(args.siteId))
if (args.buildingId != null) query.append("buildingId", String(args.buildingId))
if (args.floorId != null) query.append("floorId", String(args.floorId))
if (args.departmentId != null) query.append("departmentId", String(args.departmentId))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/places${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiV2PlacesResponse, await res.json())
};