import {z} from 'zod'

export type GetApiApiReportingV2IncidentsArgs = {'X-VO-Api-Id': string, 'X-VO-Api-Key': string, offset?: number | undefined, limit?: number | undefined, entityId?: string | undefined, incidentNumber?: string | undefined, startedAfter?: string | undefined, startedBefore?: string | undefined, host?: string | undefined, service?: string | undefined, currentPhase?: string | undefined, routingKey?: string | undefined};

export type GetApiApiReportingV2IncidentsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const escalationPolicySummary = z.object({name: z.string(), slug: z.string(), _selfUrl: z.string()});

export const team = z.object({name: z.string(), slug: z.string()});

export const escalationPolicyInfo = z.object({policy: escalationPolicySummary, team: team});

export const incidentTransition = z.object({name: z.string().optional(), at: z.string().optional(), by: z.string().optional(), message: z.string().optional(), manually: z.boolean().optional(), alertId: z.string().optional(), alertUrl: z.string().optional()});

export const reportingIncidentInfo = z.object({alertCount: z.number().optional(), currentPhase: z.enum(["RESOLVED", "UNACKED", "ACKED"]).optional(), entityDisplayName: z.string().optional(), entityId: z.string().optional(), entityState: z.string().optional(), entityType: z.string().optional(), host: z.string().optional(), incidentNumber: z.string().optional(), lastAlertId: z.string().optional(), lastAlertTime: z.string().optional(), routingKey: z.string().optional(), service: z.string().optional(), startTime: z.string().optional(), pagedTeams: z.array(z.string()).optional(), pagedUsers: z.array(z.string()).optional(), pagedPolicies: z.array(escalationPolicyInfo).optional(), transitions: z.array(incidentTransition).optional()});

export const reportingIncidentList = z.object({offset: z.number().int().optional(), limit: z.number().int().optional(), total: z.number().int().optional(), incidents: z.array(reportingIncidentInfo).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/search incident history
 * 
 * GET /api-reporting/v2/incidents
 */
export const getApiApiReportingV2Incidents = async (args: GetApiApiReportingV2IncidentsArgs, options?: GetApiApiReportingV2IncidentsOptions) => {
const {baseUrl = "https://api.victorops.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args['X-VO-Api-Id'] != null) headers.set("X-VO-Api-Id", String(args['X-VO-Api-Id']))
if (args['X-VO-Api-Key'] != null) headers.set("X-VO-Api-Key", String(args['X-VO-Api-Key']))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.entityId != null) query.append("entityId", String(args.entityId))
if (args.incidentNumber != null) query.append("incidentNumber", String(args.incidentNumber))
if (args.startedAfter != null) query.append("startedAfter", String(args.startedAfter))
if (args.startedBefore != null) query.append("startedBefore", String(args.startedBefore))
if (args.host != null) query.append("host", String(args.host))
if (args.service != null) query.append("service", String(args.service))
if (args.currentPhase != null) query.append("currentPhase", String(args.currentPhase))
if (args.routingKey != null) query.append("routingKey", String(args.routingKey))

const url = `${baseUrl.replace(/\/+$/, '')}/api-reporting/v2/incidents${query.size > 0 ? `?${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(reportingIncidentList, await res.json())
};