import {z} from 'zod'

export type GetApiActivitiesArgs = {status?: ('draft' | 'active' | 'paused') | undefined, account_id?: string | undefined};

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

export const trigger = z.enum(["ig_comment", "ig_story", "ig_live", "ig_message", "fb_comment", "fb_live", "fb_message", "threads_reply"]);

export const dmBlock = z.object({type: z.enum(["text", "button", "image", "card"]), text: z.string().optional(), title: z.string().optional(), url: z.string().optional(), image_url: z.string().optional(), subtitle: z.string().optional(), buttons: z.array(z.object({title: z.string(), url: z.string()})).optional()});

export const activity = z.object({id: z.string().optional(), name: z.string().optional(), status: z.enum(["draft", "active", "paused"]).optional(), account_id: z.string().optional(), platform: z.enum(["instagram", "facebook", "threads"]).optional(), trigger: trigger.optional(), keywords: z.array(z.string()).optional(), match: z.enum(["contains", "exact"]).optional(), public_replies: z.array(z.string()).optional(), dm: z.array(dmBlock).optional(), post_scope: z.enum(["all", "selected", "next_post"]).optional(), post_ids: z.array(z.string()).nullable().optional(), follow_gate: z.object({enabled: z.boolean(), opening_text: z.string().optional(), button_title: z.string().optional(), not_following_text: z.string().optional()}).optional(), start_at: z.string().nullable().optional(), end_at: z.string().nullable().optional(), created_at: z.string().optional(), updated_at: z.string().optional(), dashboard_url: z.string().optional(), stats: z.object({public_replies_sent: z.number().int().optional(), dms_sent: z.number().int().optional()}).optional()});

export const getApiActivitiesResponse = z.object({activities: z.array(activity).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
};

/**
 * List activities with totals
 * 
 * GET /activities
 */
export const getApiActivities = async (args: GetApiActivitiesArgs, options?: GetApiActivitiesOptions) => {
const {baseUrl = "https://social-automation.cresclab.com/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.status != null) query.append("status", String(args.status))
if (args.account_id != null) query.append("account_id", String(args.account_id))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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