import {z} from 'zod'

export type GetApiApiV1SlackOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const slackChannelProjectMapping = z.object({availableTags: z.array(z.string()).nullable(), slackChannelId: z.string(), projectUuid: z.string()});

export const slackSettings = z.object({unfurlsEnabled: z.boolean().optional(), aiMultiAgentProjectUuids: z.array(z.string()).nullable().optional(), aiMultiAgentChannelId: z.string().optional(), aiRequireOAuth: z.boolean().optional(), hasRequiredScopes: z.boolean(), aiThreadAccessConsent: z.boolean().optional(), slackChannelProjectMappings: z.array(slackChannelProjectMapping).optional(), appProfilePhotoUrl: z.string().optional(), notificationChannel: z.string().optional(), scopes: z.array(z.string()), token: z.string().optional(), createdAt: z.string(), appName: z.string().optional(), slackTeamName: z.string(), organizationUuid: z.string()});

export const apiSlackGetInstallationResponse = z.object({results: slackSettings.optional(), status: z.literal("ok")});

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 Slack installation
 * 
 * GET /api/v1/slack
 */
export const getApiApiV1Slack = async (options: GetApiApiV1SlackOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/slack${query.size > 0 ? `?${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(apiSlackGetInstallationResponse, await res.json())
};