import {z} from 'zod'

export type GetApiEngagementsArgs = {recipient?: string | undefined, recipientType?: ('doctor' | 'staff' | 'patient' | 'system') | undefined, status?: ('in-progress' | 'failed' | 'success' | 'escalation_required' | 'idle') | undefined, user?: string | undefined, deleted?: number | undefined, createdBy?: string | undefined, updatedBy?: string | undefined, createdAt?: string | undefined, updatedAt?: string | undefined, page?: number | undefined, limit?: number | undefined, _populate?: string | undefined, _select?: string | undefined};

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

export const idParam = z.string().min(24).max(24);

export const userParam = z.string().min(24).max(24);

export const deletedParam = z.union([z.literal(0), z.literal(1)]);

export const createdByParam = z.string().min(24).max(24);

export const updatedByParam = z.string().min(24).max(24);

export const createdAtParam = z.string();

export const updatedAtParam = z.string();

export const engagementResponse = z.object({_id: idParam.optional(), user: userParam.optional(), deleted: deletedParam.optional(), createdBy: createdByParam.optional(), updatedBy: updatedByParam.optional(), createdAt: createdAtParam.optional(), updatedAt: updatedAtParam.optional(), recipient: z.string().min(24).max(24).optional(), recipientType: z.enum(["doctor", "staff", "patient", "system"]).optional(), patient: z.string().min(24).max(24).optional(), expiresAt: z.string().optional(), topic: z.string().optional(), agents: z.array(z.string().min(24).max(24)).optional(), mainAgent: z.string().min(24).max(24).optional(), engagementSetting: z.string().min(24).max(24).optional(), context: z.object({}).optional(), metadata: z.object({inactivityPolicy: z.object({anchor: z.string().optional(), inactiveAfterMs: z.number().optional(), closeAfterIdleMs: z.number().optional(), timeoutAt: z.string().optional()}).optional(), inactivityState: z.object({lastRelevantActivityAt: z.string().optional(), firstBecameInactiveAt: z.string().optional(), lastInactiveEventAt: z.string().optional()}).optional(), sourceService: z.string().optional(), routingDecision: z.object({agentId: z.string().optional()}).optional()}).optional(), completedAt: z.string().optional(), type: z.enum(["conversational", "other"]).optional(), status: z.enum(["in-progress", "failed", "success", "escalation_required", "idle"]).optional(), statusReason: z.enum(["expired", "systemic_failure"]).optional()});

export const getApiEngagementsResponse = z.object({response: z.array(engagementResponse), page: z.number().int().gte(1), size: z.number().int().gte(0)});

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
};

/**
 * List engagements
 * 
 * GET /engagements
 */
export const getApiEngagements = async (args: GetApiEngagementsArgs, options?: GetApiEngagementsOptions) => {
const {baseUrl = "https://api.lumahealth.io/api/v2", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (args.recipient != null) query.append("recipient", String(args.recipient))
if (args.recipientType != null) query.append("recipientType", String(args.recipientType))
if (args.status != null) query.append("status", String(args.status))
if (args.user != null) query.append("user", String(args.user))
if (args.deleted != null) query.append("deleted", String(args.deleted))
if (args.createdBy != null) query.append("createdBy", String(args.createdBy))
if (args.updatedBy != null) query.append("updatedBy", String(args.updatedBy))
if (args.createdAt != null) query.append("createdAt", String(args.createdAt))
if (args.updatedAt != null) query.append("updatedAt", String(args.updatedAt))
if (args.page != null) query.append("page", String(args.page))
if (args.limit != null) query.append("limit", String(args.limit))
if (args._populate != null) query.append("_populate", String(args._populate))
if (args._select != null) query.append("_select", String(args._select))
if (Bearer !== undefined) headers.set('authorization', `Bearer ${Bearer}`)

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