import {z} from 'zod'

export type GetApiV1MetersArgs = {limit?: number | undefined, starting_after?: string | undefined, ending_before?: string | undefined, include_archived?: boolean | undefined};

export type GetApiV1MetersOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const filterClauseApiResponseDto = z.object({property: z.string(), operator: z.string(), value: z.union([z.string(), z.number(), z.boolean()])});

export const meterFilterApiResponseDto = z.object({conjunction: z.enum(["and", "or"]), clauses: z.array(filterClauseApiResponseDto)});

export const meterApiResponseDto = z.object({id: z.string(), store_id: z.string(), name: z.string(), event_name: z.string(), aggregation: z.enum(["count", "sum", "average", "min", "max", "unique"]), aggregation_property: z.string().nullable(), filter: meterFilterApiResponseDto, unit_label: z.string(), status: z.enum(["active", "archived"]), created_at: z.string(), updated_at: z.string()});

export const meterListApiResponseDto = z.object({object: z.string(), data: z.array(meterApiResponseDto), has_more: z.boolean()});

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
};

/**
 * List meters
 * 
 * GET /v1/meters
 */
export const getApiV1Meters = async (args: GetApiV1MetersArgs, options?: GetApiV1MetersOptions) => {
const {baseUrl = "https://api.creem.io", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.starting_after != null) query.append("starting_after", String(args.starting_after))
if (args.ending_before != null) query.append("ending_before", String(args.ending_before))
if (args.include_archived != null) query.append("include_archived", String(args.include_archived))
if (ApiKey !== undefined) headers.set("x-api-key", ApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/meters${query.size > 0 ? `?${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(meterListApiResponseDto, await res.json())
};