import {z} from 'zod'

export type GetApiProjectsProjectIdBranchesNameCompareArgs = {'X-PhraseApp-OTP'?: string | undefined, project_id: string, name: string};

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

export const branchComparisonChange = z.object({from: z.record(z.string(), z.unknown()).nullable().optional(), to: z.record(z.string(), z.unknown()).nullable().optional()});

export const branchComparisonDiff = z.object({base_changes: z.array(branchComparisonChange).optional(), head_changes: z.array(branchComparisonChange).optional(), conflicts: z.record(z.string(), z.object({base: z.array(z.record(z.string(), z.unknown())).optional(), head: z.array(z.record(z.string(), z.unknown())).optional()})).optional()});

export const branchComparison = z.object({translation_keys: branchComparisonDiff.optional(), translations: branchComparisonDiff.optional(), locales: branchComparisonDiff.optional(), tags: branchComparisonDiff.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
};

/**
 * Compare branches
 * 
 * GET /projects/{project_id}/branches/{name}/compare
 */
export const getApiProjectsProjectIdBranchesNameCompare = async (args: GetApiProjectsProjectIdBranchesNameCompareArgs, options?: GetApiProjectsProjectIdBranchesNameCompareOptions) => {
const {baseUrl = "https://eu.phrase.com/control-hub", fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-PhraseApp-OTP'] != null) headers.set("X-PhraseApp-OTP", String(args['X-PhraseApp-OTP']))
if (args.name != null) query.append("name", String(args.name))

const url = `${baseUrl.replace(/\/+$/, '')}/projects/${encodeURIComponent(String(args.project_id))}/branches/${encodeURIComponent(String(args.name))}/compare${query.size > 0 ? `?${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(branchComparison, await res.json())
};