import {z} from 'zod'

export type ReplaceRequest = {music_id: string, sound_prompt: string, lyrics_text: string, instrumental?: boolean | undefined, starts?: number | undefined, ends?: number | undefined, mv?: ('FUZZ-2.0 Pro' | 'FUZZ-2.0' | 'FUZZ-2.0 Raw' | 'FUZZ-1.1 Pro' | 'FUZZ-1.0 Pro' | 'FUZZ-1.0' | 'FUZZ-1.1' | 'FUZZ-0.8' | 'Lyria 3 preview') | undefined, title?: string | undefined, cover_art_url?: string | undefined, seed?: string | undefined, lyrics_strength?: number | undefined, sound_strength?: number | undefined, weirdness?: number | undefined, is_storage?: boolean | undefined, hook_url?: string | undefined};

export type CreateApiProducerV1ReplaceArgs = {body: ReplaceRequest};

export type CreateApiProducerV1ReplaceOptions = {baseUrl?: string | undefined, CustomApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiProducerV1ReplaceResponse = z.object({status: z.string(), message: z.string(), data: z.object({})});

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
};

/**
 * Replace some segments of the generated audio
 * 
 * POST /producer/v1/replace
 */
export const createApiProducerV1Replace = async (args: CreateApiProducerV1ReplaceArgs, options?: CreateApiProducerV1ReplaceOptions) => {
const {baseUrl = "https://api.ttapi.io", fetch: fetchFn = fetch, CustomApiKey} = options ?? {}

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

if (CustomApiKey !== undefined) headers.set("TT-API-KEY", CustomApiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/producer/v1/replace${query.size > 0 ? `?${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(createApiProducerV1ReplaceResponse, await res.json())
};