import {z} from 'zod'

export type GetApiBrandIdSiteOptimizationOptimizationArgs = {brand_id: number, path: string, status?: (Array<'pending' | 'completed' | 'staged' | 'deployed' | 'retired' | 'outdated' | 'acknowledged'> | null) | undefined};

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

export const optimizationSummary = z.object({transformed: z.number().int(), enriched: z.number().int(), removed: z.number().int(), tokens_after: z.number().int()});

export const contentNode = z.object({type: z.literal("html").optional(), text: z.string()});

export const optimizationChunk = z.object({id: z.string(), order: z.number().int(), category: z.enum(["enriched", "transformed", "removed"]).nullable().optional(), status: z.enum(["pending", "approved", "rejected"]).nullable().optional(), before: z.array(contentNode).optional(), after: z.array(contentNode).optional()});

export const pathOptimization = z.object({path: z.string(), status: z.enum(["pending", "completed", "staged", "deployed", "retired", "outdated", "acknowledged"]), summary: optimizationSummary, chunks: z.array(optimizationChunk).optional()});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
};

/**
 * Get Page Optimization Detail
 * 
 * GET /{brand_id}/site-optimization/optimization
 */
export const getApiBrandIdSiteOptimizationOptimization = async (args: GetApiBrandIdSiteOptimizationOptimizationArgs, options?: GetApiBrandIdSiteOptimizationOptimizationOptions) => {
const {baseUrl = "https://api.scrunchai.com/v1", fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.path != null) query.append("path", String(args.path))
for (const item of args.status ?? []) query.append("status", String(item))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/${encodeURIComponent(String(args.brand_id))}/site-optimization/optimization${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(pathOptimization, await res.json())
};