import {z} from 'zod'

export type AiVideoPreviewRowDTO = {id: string, title?: (string | null) | undefined, product_type?: (string | null) | undefined, gender?: (string | null) | undefined, image_link?: (string | null) | undefined};

export type AiVideoCoveragePreviewRequestDTO = {rows: Array<AiVideoPreviewRowDTO>, product_ids?: (Array<string> | null) | undefined};

export type CreateApiApiV1AiVideoCatalogCoveragePreviewArgs = {body: AiVideoCoveragePreviewRequestDTO};

export type CreateApiApiV1AiVideoCatalogCoveragePreviewOptions = {baseUrl: string, JWTBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const aiVideoSkippedGroupDTO = z.object({reason: z.enum(["no_photo", "not_covered", "unknown_type", "unknown_gender", "over_limit"]), group: z.string().nullable().optional(), gender: z.string().nullable().optional(), count: z.number().int(), product_ids: z.array(z.string()).optional()});

export const aiVideoStyleCoverageDTO = z.object({template_id: z.string(), product_ids: z.array(z.string()).optional(), skipped: z.array(aiVideoSkippedGroupDTO).optional(), gender_unsaid_ids: z.array(z.string()).optional()});

export const aiVideoCoverageResponseDTO = z.object({catalog_id: z.string(), total_products: z.number().int(), catalog_products: z.number().int().optional(), max_videos_per_batch: z.number().int(), styles: z.array(aiVideoStyleCoverageDTO).optional(), brand_name: z.string().optional(), brand_logo_url: z.string().nullable().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
};

/**
 * Preview Coverage
 * 
 * POST /api/v1/ai-video-catalog/coverage-preview
 */
export const createApiApiV1AiVideoCatalogCoveragePreview = async (args: CreateApiApiV1AiVideoCatalogCoveragePreviewArgs, options: CreateApiApiV1AiVideoCatalogCoveragePreviewOptions) => {
const {baseUrl, fetch: fetchFn = fetch, JWTBearer} = options ?? {}

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

if (JWTBearer !== undefined) headers.set('authorization', `Bearer ${JWTBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/ai-video-catalog/coverage-preview${query.size > 0 ? `?${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(aiVideoCoverageResponseDTO, await res.json())
};