import {z} from 'zod'

export type CreateApiApiImportsIdColumnMapArgs = {id: string, body: {defaultAccountName?: string | undefined, defaultDate?: string | undefined, mapping: {account: {column: string} | null, amount: {column: string, kind: 'signed', parensNegative: boolean, signConvention: 'outflow_negative' | 'outflow_positive'} | {inflowColumn: string, kind: 'split', outflowColumn: string} | {debitValues: Array<string>, kind: 'magnitude_type', magnitudeColumn: string, typeColumn: string}, category: {column: string} | null, confidence: number, date: {column: string, format: string, kind: 'column'} | {kind: 'missing'}, excludeRule: {column: string, trueValues: Array<string>} | null, merchant: {column: string}, notes: {column: string} | null, originalDescription: {column: string} | null, tags: {column: string, delimiter: string} | null, transferRule: {kind: 'category_match', values: Array<string>} | {column: string, kind: 'type_match', values: Array<string>} | {kind: 'merchant_prefix', prefixes: Array<string>} | null}, singleAccountChoice?: ({accountId: string, kind: 'existing'} | {institutionLogoDomain?: string | undefined, institutionName?: string | undefined, kind: 'create', name: string}) | undefined}};

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

export const createApiApiImportsIdColumnMapResponse = z.object({rejected: z.number().int().gte(0), staged: z.number().int().gte(0), success: 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
};

/**
 * Confirm column mapping
 * 
 * POST /api/imports/{id}/column-map
 */
export const createApiApiImportsIdColumnMap = async (args: CreateApiApiImportsIdColumnMapArgs, options: CreateApiApiImportsIdColumnMapOptions) => {
const {baseUrl, 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 = `${baseUrl.replace(/\/+$/, '')}/api/imports/${encodeURIComponent(String(args.id))}/column-map${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(createApiApiImportsIdColumnMapResponse, await res.json())
};