import {z} from 'zod'

export type GetApiMessagesMetricsArgs = {period_start_at?: string | undefined, period_end_at?: string | undefined, granularity?: ('hour' | 'day') | undefined, time_zone?: string | undefined, phone_id?: string | undefined, conversation_id?: string | undefined};

export type GetApiMessagesMetricsOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const phoneMessageOutcomes = z.object({delivered: z.number().int(), failed: z.number().int(), no_report: z.number().int(), queued: z.number().int(), unconfirmed: z.number().int()});

export const phoneMessageLatency = z.object({p50: z.number().int(), p95: z.number().int()});

export const phoneMessageConversationMetrics = z.object({active: z.number().int(), by_outcome: phoneMessageOutcomes, replied: z.number().int(), reply_latency_ms: phoneMessageLatency, reply_rate: z.number().gte(0).lte(1).nullable(), response_latency_ms: phoneMessageLatency, started: z.number().int(), texted: z.number().int()});

export const phoneMessageFailurePhone = z.object({count: z.number().int(), phone_id: z.string()});

export const phoneMessageFailure = z.object({conversations: z.number().int(), count: z.number().int(), error_code: z.enum(["phone_unreachable", "no_result", "policy_off", "expired", "no_subscription", "no_service", "radio_off", "carrier_rejected", "phone_rate_limited", "media_fetch_failed", "connection_lost", "queue_full", "send_failed"]), numbers: z.number().int(), phones: z.array(phoneMessageFailurePhone).nullable()});

export const phoneMessagePhoneMetrics = z.object({conversations: z.number().int(), delivered: z.number().int(), delivery_rate: z.number().gte(0).lte(1).nullable(), failed: z.number().int(), no_report: z.number().int(), peak_at: z.string().nullable(), peak_sent_30m: z.number().int(), phone_id: z.string(), queued: z.number().int(), received: z.number().int(), sent: z.number().int(), unconfirmed: z.number().int()});

export const phoneMessageMetricsPoint = z.object({delivered: z.number().int(), failed: z.number().int(), no_report: z.number().int(), period_start_at: z.string(), queued: z.number().int(), received: z.number().int(), send_p50_ms: z.number().int().nullable(), send_p95_ms: z.number().int().nullable(), sent: z.number().int(), unconfirmed: z.number().int()});

export const phoneMessageSendLimit = z.object({count: z.number().int(), window_seconds: z.number().int()});

export const phoneMessageMetricsTotals = z.object({delivered: z.number().int(), failed: z.number().int(), no_report: z.number().int(), numbers_received_from: z.number().int(), numbers_texted: z.number().int(), phones_sending: z.number().int(), queued: z.number().int(), received: z.number().int(), sent: z.number().int(), unconfirmed: z.number().int()});

export const phoneMessageMetrics = z.object({conversations: phoneMessageConversationMetrics, delivery_latency_ms: phoneMessageLatency, delivery_rate: z.number().gte(0).lte(1).nullable(), failures: z.array(phoneMessageFailure).nullable(), period_end_at: z.string(), period_start_at: z.string(), phones: z.array(phoneMessagePhoneMetrics).nullable(), points: z.array(phoneMessageMetricsPoint).nullable(), send_latency_ms: phoneMessageLatency, send_limit: phoneMessageSendLimit, totals: phoneMessageMetricsTotals});

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 message metrics
 * 
 * GET /messages/metrics
 */
export const getApiMessagesMetrics = async (args: GetApiMessagesMetricsArgs, options?: GetApiMessagesMetricsOptions) => {
const {baseUrl = "https://api.axilio.ai/api/v1", fetch: fetchFn = fetch, apiKeyAuth} = options ?? {}

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

if (args.period_start_at != null) query.append("period_start_at", String(args.period_start_at))
if (args.period_end_at != null) query.append("period_end_at", String(args.period_end_at))
if (args.granularity != null) query.append("granularity", String(args.granularity))
if (args.time_zone != null) query.append("time_zone", String(args.time_zone))
if (args.phone_id != null) query.append("phone_id", String(args.phone_id))
if (args.conversation_id != null) query.append("conversation_id", String(args.conversation_id))
if (apiKeyAuth !== undefined) headers.set("X-Axilio-Api-Key", apiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/messages/metrics${query.size > 0 ? `?${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(phoneMessageMetrics, await res.json())
};