import { useApi } from '@/composables/useApi'
import {
	exportQuery,
	listQuery,
	summaryQuery,
	type ActivityFilters,
	type ActivityPage,
	type ActivitySummary,
} from '@/lib/activity'
import type { UserListItem } from '@/composables/useUsers'
import type { ApiKey } from '@/composables/useApiKeys'

export interface PersonOptions {
	users: { id: number; name: string }[]
	keys: { id: number; name: string }[]
}

export const ACTIVITY_SKELETON_ROWS = 9
export const ACTIVITY_SKELETON_CARDS = 5
export const EXPORT_FILE_NAME = 'activity.csv'

export function useActivity() {
	const { request, requestBlob } = useApi()

	function listActivity(
		filters: ActivityFilters,
		page: number,
		size: number,
		withActor = true,
	): Promise<ActivityPage> {
		return request<ActivityPage>(`/v1/activity?${listQuery(filters, page, size, withActor)}`)
	}

	function listRecentActivity(size: number): Promise<ActivityPage> {
		return request<ActivityPage>(`/v1/activity?size=${size}`)
	}

	function getSummary(filters: ActivityFilters): Promise<ActivitySummary> {
		return request<ActivitySummary>(`/v1/activity/summary?${summaryQuery(filters)}`)
	}

	function exportActivity(filters: ActivityFilters): Promise<Blob> {
		return requestBlob(`/v1/activity/export?${exportQuery(filters)}`)
	}

	async function listPeople(): Promise<PersonOptions> {
		const [users, keys] = await Promise.all([
			request<UserListItem[]>('/v1/user/'),
			request<ApiKey[]>('/v1/api-key/'),
		])
		return {
			users: users.flatMap((item) =>
				item.kind === 'user'
					? [{ id: item.id, name: item.display_name || item.username }]
					: [],
			),
			keys: keys.map((key) => ({ id: key.id, name: key.name })),
		}
	}

	return { listActivity, listRecentActivity, getSummary, exportActivity, listPeople }
}

export function downloadBlob(blob: Blob, fileName: string) {
	const url = URL.createObjectURL(blob)
	const anchor = document.createElement('a')
	anchor.href = url
	anchor.download = fileName
	document.body.appendChild(anchor)
	anchor.click()
	anchor.remove()
	URL.revokeObjectURL(url)
}