import {z} from 'zod'

export type TimeZone = number;

export type RepositoryID = string;

export type RepositorySet = Array<RepositoryID>;

export type DeveloperID = string;

export type DeveloperSet = Array<DeveloperID>;

export type Granularity = string;

export type CodeFilter = {account: number, date_from: string, date_to: string, timezone?: TimeZone | undefined, in: RepositorySet, with_author?: DeveloperSet | undefined, with_committer?: DeveloperSet | undefined, granularity: Granularity, only_default_branch?: boolean | undefined};

export type CreateApiMetricsCodeBypassingPrsArgs = {body: CodeFilter};

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

export const codeBypassingPRsMeasurement = z.object({date: z.string(), bypassed_commits: z.number().int().gte(0), bypassed_lines: z.number().int().gte(0), total_commits: z.number().int().gte(0), total_lines: z.number().int().gte(0)});

export const measuredCodeBypassingPRs = z.array(codeBypassingPRsMeasurement);

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
};

/**
 * Measure the amount of code that was pushed outside of pull requests.
 * 
 * POST /metrics/code_bypassing_prs
 * 
 * Also accepts auth: apiKeyAuth
 */
export const createApiMetricsCodeBypassingPrs = async (args: CreateApiMetricsCodeBypassingPrsArgs, options: CreateApiMetricsCodeBypassingPrsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

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