import {z} from 'zod'

export type R5Bounds = {north: number, south: number, east: number, west: number};

export type R5RegionCreateDTO = {bounds: R5Bounds, name: string, description: string};

export type CreateApiApiV1R5RegionArgs = {body: R5RegionCreateDTO};

export type CreateApiApiV1R5RegionOptions = {baseUrl: string, OAuth2PasswordBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const r5Bounds = z.object({north: z.number(), south: z.number(), east: z.number(), west: z.number()});

export const r5RegionInDB = z.object({_id: z.string().optional(), accessGroup: z.string().optional(), nonce: z.string(), name: z.string(), createdAt: z.string(), createdBy: z.string().optional(), updatedAt: z.string(), updatedBy: z.string().optional(), description: z.string(), bounds: r5Bounds});

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
};

/**
 * Region Create
 * 
 * POST /api/v1/r5/region
 */
export const createApiApiV1R5Region = async (args: CreateApiApiV1R5RegionArgs, options: CreateApiApiV1R5RegionOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2PasswordBearer} = options ?? {}

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

if (OAuth2PasswordBearer !== undefined) headers.set('authorization', `Bearer ${OAuth2PasswordBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/r5/region${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

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

return validateResponse(r5RegionInDB, await res.json())
};