import {z} from 'zod'

export type GetApiBrandIdSiteOptimizationRecommendationsByPageArgs = {brand_id: number, path?: (Array<string> | null) | undefined, limit?: number | undefined, offset?: number | undefined};

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

export const pageScores = z.object({retrievability: z.number(), citeability: z.number()});

export const diagnosticOpportunity = z.object({best_practice_id: z.string().nullable().optional(), label: z.string().nullable().optional(), bucket: z.enum(["hygiene", "transformation", "enrichment"]), bucket_label: z.string().nullable().optional(), recommended_change: z.string(), expected_lift_pp: z.number(), severity: z.enum(["low", "medium", "high"]), heading_path: z.array(z.string()).optional()});

export const diagnosticStrength = z.object({best_practice_id: z.string().nullable().optional(), label: z.string().nullable().optional(), message: z.string(), contribution_pp: z.number(), heading_path: z.array(z.string()).optional()});

export const pathDiagnostics = z.object({path: z.string(), generated_at: z.string(), content_sha1: z.string().nullable().optional(), model_version: z.string(), scores: pageScores, opportunities: z.array(diagnosticOpportunity).optional(), strengths: z.array(diagnosticStrength).optional(), optimization_status: z.enum(["pending", "completed", "staged", "deployed", "retired", "outdated", "acknowledged"]).nullable().optional(), acknowledged_at: z.string().nullable().optional()});

export const aggregationGranularity = z.enum(["daily", "weekly", "monthly"]);

export const topDomainSummary = z.object({domain: z.string(), domain_owner: z.string(), observation_count: z.number().int()});

export const ownerTimeSeriesPoint = z.object({time_bucket: z.string(), brand: z.number().int(), competitor: z.number().int(), other: z.number().int()});

export const segmentTotal = z.object({name: z.string(), observation_count: z.number().int()});

export const topDomainsMetadata = z.object({domains: z.array(topDomainSummary), grand_total: z.number().int(), owner_totals: z.record(z.string(), z.number().int()), owner_time_series: z.array(ownerTimeSeriesPoint).nullable().optional(), segment_totals: z.array(segmentTotal).optional()});

export const timeSeriesMetadata = z.object({aggregation_granularity: aggregationGranularity, period_count: z.number().int(), start_date: z.string(), end_date: z.string(), top_domains: topDomainsMetadata.nullable().optional()});

export const collectionResponsePathDiagnostics = z.object({total: z.number().int(), offset: z.number().int().optional(), limit: z.number().int().nullable().optional(), items: z.array(pathDiagnostics), metadata: timeSeriesMetadata.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
};

/**
 * List Page Recommendations
 * 
 * GET /{brand_id}/site-optimization/recommendations/by-page
 */
export const getApiBrandIdSiteOptimizationRecommendationsByPage = async (args: GetApiBrandIdSiteOptimizationRecommendationsByPageArgs, options?: GetApiBrandIdSiteOptimizationRecommendationsByPageOptions) => {
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")

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

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