import {z} from 'zod'

export type GetApiBlogsAnalyticsPostsArgs = {start_date?: string | undefined, end_date?: string | undefined, sort?: ('visits' | 'clicks' | 'organic' | 'cvr') | undefined, order?: ('asc' | 'desc') | undefined, limit?: number | undefined, include?: 'title' | undefined};

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

export const postMetricRow = z.object({post_id: z.number().int().optional(), visits: z.number().int().optional(), clicks: z.number().int().optional(), organic: z.number().int().optional(), cvr: z.number().optional(), title: z.string().nullable().optional()});

export const dateRangeMeta = z.object({start_date: z.string().optional(), end_date: z.string().optional(), total: z.number().int().optional()});

export const postMetricsResponse = z.object({data: z.array(postMetricRow).optional(), meta: dateRangeMeta.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 Post Performance Metrics
 * 
 * GET /blogs/analytics/posts
 */
export const getApiBlogsAnalyticsPosts = async (args: GetApiBlogsAnalyticsPostsArgs, options?: GetApiBlogsAnalyticsPostsOptions) => {
const {baseUrl = "https://inblog.ai/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.start_date != null) query.append("start_date", String(args.start_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.order != null) query.append("order", String(args.order))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.include != null) query.append("include", String(args.include))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/blogs/analytics/posts${query.size > 0 ? `?${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(postMetricsResponse, await res.json())
};