import {z} from 'zod'

export type TranslationAlignmentForm = {sourceLanguageId: string, targetLanguageId: string, text: string};

export type CreateApiProjectsProjectIdTranslationsAlignmentArgs = {projectId: number, body: TranslationAlignmentForm};

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

export const alignment = z.object({sourceWord: z.string().optional(), sourceLemma: z.string().optional(), targetWord: z.string().optional(), targetLemma: z.string().optional(), match: z.number().int().optional(), probability: z.number().optional()});

export const wordAlignments = z.object({text: z.string().optional(), alignments: z.array(alignment).optional()});

export const translationAlignment = z.object({words: z.array(wordAlignments).optional()});

export const translationAlignmentResource = z.object({data: translationAlignment});

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
};

/**
 * Translation Alignment
 * 
 * POST /projects/{projectId}/translations/alignment
 */
export const createApiProjectsProjectIdTranslationsAlignment = async (args: CreateApiProjectsProjectIdTranslationsAlignmentArgs, options?: CreateApiProjectsProjectIdTranslationsAlignmentOptions) => {
const {baseUrl = "https://api.crowdin.com/api/v2", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/projects/${encodeURIComponent(String(args.projectId))}/translations/alignment${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(translationAlignmentResource, await res.json())
};