import {z} from 'zod'

export type GetApiV0TracksTrackIdSimilarSectionsArgs = {trackId: string, start: number, end: number, offset?: number | undefined, limit?: number | undefined};

export type GetApiV0TracksTrackIdSimilarSectionsOptions = {baseUrl?: string | undefined, UserAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const moodResponse = z.object({id: z.string(), name: z.string()});

export const parentGenreResponse = z.object({id: z.string(), name: z.string()});

export const genreResponse = z.object({id: z.string(), name: z.string(), parent: parentGenreResponse.optional()});

export const imagesResponse = z.object({default: z.string().nullable().optional(), XS: z.string().nullable().optional(), S: z.string().nullable().optional(), M: z.string().nullable().optional(), L: z.string().nullable().optional()});

export const trackResponse = z.object({id: z.string(), mainArtists: z.array(z.string()), featuredArtists: z.array(z.string()), title: z.string(), bpm: z.number().int(), length: z.number().int(), moods: z.array(moodResponse), genres: z.array(genreResponse), images: imagesResponse.optional(), waveformUrl: z.string(), isExplicit: z.boolean().nullable().optional(), hasVocals: z.boolean().nullable().optional(), added: z.string(), isPreviewOnly: z.boolean().optional(), tierOption: z.enum(["PAID", "FREE"]).nullable().optional(), isrc: z.string().nullable().optional(), vocalType: z.enum(["LEAD", "PRESENCE", "NONE"]).nullable().optional(), availableStems: z.array(z.enum(["drums", "bass", "melody", "instruments", "vocals", "clean_vocals"])).optional()});

export const trackSectionResponse = z.object({track: trackResponse, start: z.number().int(), end: z.number().int()});

export const pagination = z.object({limit: z.number().int(), offset: z.number().int().optional(), page: z.number().int()});

export const paginationLinks = z.object({next: z.string().nullable().optional(), prev: z.string().nullable().optional()});

export const trackSectionPaginatedResponse = z.object({trackSections: z.array(trackSectionResponse), pagination: pagination, links: paginationLinks});

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
};

/**
 * Similar track segment based on trackID
 * 
 * GET /v0/tracks/{trackId}/similar-sections
 * 
 * Also accepts auth: EpidemicSoundConnectAuth, ApiKeyAuth
 */
export const getApiV0TracksTrackIdSimilarSections = async (args: GetApiV0TracksTrackIdSimilarSectionsArgs, options?: GetApiV0TracksTrackIdSimilarSectionsOptions) => {
const {baseUrl = "https://partner-content-api.epidemicsound.com", fetch: fetchFn = fetch, UserAuth} = options ?? {}

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

if (args.start != null) query.append("start", String(args.start))
if (args.end != null) query.append("end", String(args.end))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))
if (UserAuth !== undefined) headers.set('authorization', `Bearer ${UserAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v0/tracks/${encodeURIComponent(String(args.trackId))}/similar-sections${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(trackSectionPaginatedResponse, await res.json())
};