import {z} from 'zod'

export type GetApiV2ReportingTemplatesNameArgs = {name: string};

export type GetApiV2ReportingTemplatesNameOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const metricParamDefinition = z.object({name: z.string().optional(), type: z.enum(["date", "string", "array", "enum", "integer"]).optional(), required: z.boolean().optional(), description: z.string().optional(), options: z.array(z.unknown()).optional(), constraints: z.object({}).optional()});

export const metricTemplate = z.object({name: z.string().optional(), displayName: z.string().optional(), description: z.string().optional(), params: z.array(metricParamDefinition).optional(), supportsBreakdowns: z.boolean().optional(), breakdownOptions: z.array(z.string()).optional()});

export const templateResponse = z.object({status: z.literal("success").optional(), data: metricTemplate.optional(), metadata: z.object({}).optional()});

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
};

/**
 * Get Template Details
 * 
 * GET /v2/reporting/templates/{name}
 */
export const getApiV2ReportingTemplatesName = async (args: GetApiV2ReportingTemplatesNameArgs, options?: GetApiV2ReportingTemplatesNameOptions) => {
const {baseUrl = "https://production.hifibridge.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/v2/reporting/templates/${encodeURIComponent(String(args.name))}${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(templateResponse, await res.json())
};