import {z} from 'zod'

export type AutomationStep = {type: 'message' | 'wait' | 'condition' | 'tag' | 'question' | 'wait_payment', config?: ({[key: string]: unknown} | null) | undefined, branches?: ({[key: string]: Array<AutomationStep>} | null) | undefined, id?: (string | null) | undefined};

export type AutomationUpsertRequest = {name: string, trigger: 'webhook' | 'cart.abandoned' | 'payment.failed' | 'tag.applied' | 'conversation.started' | 'button.replied' | 'charge.paid' | 'charge.expired', triggerConfig?: ({[key: string]: unknown} | null) | undefined, steps?: Array<AutomationStep> | undefined};

export type CreateApiV1AutomationsArgs = {'Idempotency-Key'?: string | undefined, body: AutomationUpsertRequest};

export type CreateApiV1AutomationsOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const automationStep: z.ZodType<AutomationStep> = z.object({type: z.enum(["message", "wait", "condition", "tag", "question", "wait_payment"]), config: z.record(z.string(), z.unknown()).nullable().optional(), branches: z.record(z.string(), z.array(z.lazy(() => automationStep))).nullable().optional(), id: z.string().nullable().optional()});

export const automationHook = z.object({url: z.string(), signatureEnabled: z.boolean(), hasSecret: z.boolean()});

export const automation = z.object({id: z.string(), name: z.string(), trigger: z.string(), triggerConfig: z.record(z.string(), z.unknown()).nullable().optional(), active: z.boolean(), steps: z.array(automationStep), costPerRunBrl: z.number(), stats: z.object({runsLast30Days: z.number().int().optional(), inFlight: z.number().int().optional(), completed: z.number().int().optional(), stopped: z.number().int().optional()}).nullable().optional(), webhookUrl: z.string().nullable().optional(), hook: automationHook.nullable().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
};

/**
 * Criar automação
 * 
 * POST /v1/automations
 */
export const createApiV1Automations = async (args: CreateApiV1AutomationsArgs, options?: CreateApiV1AutomationsOptions) => {
const {baseUrl = "https://api.ararahq.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/automations${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(automation, await res.json())
};