import {z} from 'zod'

export type GetApiV1ProjectsProjectSlugSessionsSessionIdSignalsSignalSlugArgs = {projectSlug: string, sessionId: string, signalSlug: string};

export type GetApiV1ProjectsProjectSlugSessionsSessionIdSignalsSignalSlugOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const signalScoreEvidence = z.union([z.object({scoreDimension: z.literal("outcome"), role: z.literal("taskOutcome")}), z.object({scoreDimension: z.literal("reliability"), role: z.enum(["completionOutcome", "operationalIncident"])}), z.object({scoreDimension: z.literal("cost"), role: z.literal("spendEfficiency")}), z.object({scoreDimension: z.literal("speed"), role: z.literal("criticalPathEfficiency")}), z.object({scoreDimension: z.literal("safety"), role: z.enum(["confirmedHarm", "exposure"])})]);

export const sessionSignal = z.object({id: z.string().min(24).max(24), organizationId: z.string().min(24).max(24), projectId: z.string().min(24).max(24), slug: z.string(), name: z.string(), description: z.string(), source: z.enum(["annotation", "flagger", "custom"]), scoreEvidence: z.array(signalScoreEvidence), states: z.array(z.enum(["new", "escalating", "ongoing", "resolved", "regressed", "ignored"])), resolvedAt: z.string().nullable(), ignoredAt: z.string().nullable(), regressedAt: z.string().nullable(), mutedAt: z.string().nullable(), createdAt: z.string(), updatedAt: z.string(), occurrences: z.number().int().gte(0), firstSeenAt: z.string(), lastSeenAt: z.string(), traceIds: z.array(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
};

/**
 * Get session signal
 * 
 * GET /v1/projects/{projectSlug}/sessions/{sessionId}/signals/{signalSlug}
 */
export const getApiV1ProjectsProjectSlugSessionsSessionIdSignalsSignalSlug = async (args: GetApiV1ProjectsProjectSlugSessionsSessionIdSignalsSignalSlugArgs, options?: GetApiV1ProjectsProjectSlugSessionsSessionIdSignalsSignalSlugOptions) => {
const {baseUrl = "https://api.latitude.so", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set('authorization', `Bearer ${ApiKeyAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/projects/${encodeURIComponent(String(args.projectSlug))}/sessions/${encodeURIComponent(String(args.sessionId))}/signals/${encodeURIComponent(String(args.signalSlug))}${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(sessionSignal, await res.json())
};