import {z} from 'zod'

export type ProfileFilter = {key: string, op?: string | undefined, value: string};

export type ProfilesQueryBody = {data_source?: (string | null) | undefined, end_time?: number | undefined, filters?: Array<ProfileFilter> | undefined, group_by?: (string | null) | undefined, group_limit?: (number | null) | undefined, max_nodes?: (number | null) | undefined, profile_type?: (string | null) | undefined, profile_unit?: (string | null) | undefined, service_name?: (string | null) | undefined, start_time?: number | undefined, step?: (string | null) | undefined, timeout?: (number | null) | undefined};

export type ProfilesDiffBody = {baseline: ProfilesQueryBody, comparison: ProfilesQueryBody, max_nodes?: (number | null) | undefined};

export type CreateApiApiOrgIdStreamNameProfilesDiffArgs = {org_id: string, stream_name: string, body: ProfilesDiffBody};

export type CreateApiApiOrgIdStreamNameProfilesDiffOptions = {baseUrl: string, Authorization?: string | undefined, fetch?: typeof fetch | undefined};

export const profilesDiffResponse = z.object({baseline_total: z.number().int(), comparison_total: z.number().int(), profile_type: z.string(), root: z.object({}), took: z.number().int().gte(0), top: z.array(z.object({})), tree_truncated: z.boolean(), truncated: z.boolean(), unit: z.string()});

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
};

/**
 * Compare two profile queries as one call tree
 * 
 * POST /api/{org_id}/{stream_name}/profiles/diff
 */
export const createApiApiOrgIdStreamNameProfilesDiff = async (args: CreateApiApiOrgIdStreamNameProfilesDiffArgs, options: CreateApiApiOrgIdStreamNameProfilesDiffOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.org_id))}/${encodeURIComponent(String(args.stream_name))}/profiles/diff${query.size > 0 ? `?${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(profilesDiffResponse, await res.json())
};