import {z} from 'zod'

export type GetApiApiV1TelemetrySummaryArgs = {start_date?: string | undefined, end_date?: string | undefined, project_id?: string | undefined};

export type GetApiApiV1TelemetrySummaryOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const telemetrySummary = z.object({total_co2_kg: z.number(), total_co2_lower_bound_kg: z.number(), total_co2_upper_bound_kg: z.number(), total_tokens: z.number(), cached_vs_uncached: z.object({uncached_tokens: z.number(), cached_tokens: z.number(), cache_creation_tokens: z.number(), cached_co2_savings_kg: z.number()}), per_model: z.array(z.object({model: z.string(), total_tokens: z.number(), co2_kg: z.number(), percentage: z.number()})), daily_chart: z.array(z.object({date: z.string(), co2_kg: z.number(), tokens: z.number()})), factors_version: z.string(), period: z.object({start: z.string(), end: z.string()})});

export const getApiApiV1TelemetrySummaryResponse = z.object({success: z.literal(true), data: telemetrySummary});

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 telemetry summary
 * 
 * GET /api/v1/telemetry/summary
 * 
 * Also accepts auth: apiKey
 */
export const getApiApiV1TelemetrySummary = async (args: GetApiApiV1TelemetrySummaryArgs, options?: GetApiApiV1TelemetrySummaryOptions) => {
const {baseUrl = "https://api.crbonfree.com", 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.project_id != null) query.append("project_id", String(args.project_id))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/telemetry/summary${query.size > 0 ? `?${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(getApiApiV1TelemetrySummaryResponse, await res.json())
};