import { asanaRequest } from './client.ts'
import { mapTask, TASK_FIELDS } from './models.ts'
import type { AsanaAuthInput, AsanaPageInfo, AsanaTaskSummary } from './types.ts'
import {
	clampInt,
	compactRecord,
	optionalString,
	requireRecord,
} from './types.ts'
import { requireAuthMode } from './auth.ts'

export type ListTasksInput = AsanaAuthInput & {
	/** Project GID. Required unless `assignee` and `workspaceGid` are set. */
	projectGid?: string
	/** Assignee GID or `me`. Required with `workspaceGid` when `projectGid` is omitted. */
	assignee?: string
	workspaceGid?: string
	completedSince?: string
	modifiedSince?: string
	limit?: number
	offset?: string
}

export type ListTasksResult = {
	items: Array<AsanaTaskSummary>
	pageInfo: AsanaPageInfo
}

/**
 * List Asana tasks. Pass `projectGid`, or both `assignee` and `workspaceGid`.
 * @example
 * import listTasks from 'kody:@kody/asana/list-tasks'
 * const { items } = await listTasks({ projectGid: '123', limit: 25 })
 */
export async function listTasks(input: ListTasksInput = {}): Promise<ListTasksResult> {
	const projectGid = optionalString(input.projectGid, 'projectGid')
	const assignee = optionalString(input.assignee, 'assignee')
	const workspaceGid = optionalString(input.workspaceGid, 'workspaceGid')
	if (!projectGid && !(assignee && workspaceGid)) {
		throw new Error(
			'list-tasks requires projectGid, or both assignee and workspaceGid (assignee may be "me").',
		)
	}
	const limit = clampInt(input.limit, 1, 100, 25)
	const result = await asanaRequest<Array<unknown>>({
		...input,
		operation: 'tasks.read',
		path: '/tasks',
		query: compactRecord({
			project: projectGid,
			assignee,
			workspace: workspaceGid,
			completed_since: optionalString(input.completedSince, 'completedSince'),
			modified_since: optionalString(input.modifiedSince, 'modifiedSince'),
			limit,
			offset: optionalString(input.offset, 'offset'),
			opt_fields: TASK_FIELDS,
		}),
	})
	return {
		items: (Array.isArray(result.data) ? result.data : []).map(mapTask),
		pageInfo: result.pageInfo,
	}
}

/**
 * List Asana tasks. Pass `projectGid`, or both `assignee` and `workspaceGid`.
 * @example
 * import listTasks from 'kody:@kody/asana/list-tasks'
 * const result = await listTasks({ assignee: 'me', workspaceGid: '123' })
 */
export default async function listTasksEntrypoint(
	params: ListTasksInput & Record<string, unknown> = {},
) {
	const input = requireRecord(params, 'list-tasks')
	return listTasks({
		projectGid: optionalString(input.projectGid, 'projectGid'),
		assignee: optionalString(input.assignee, 'assignee'),
		workspaceGid: optionalString(input.workspaceGid, 'workspaceGid'),
		completedSince: optionalString(input.completedSince, 'completedSince'),
		modifiedSince: optionalString(input.modifiedSince, 'modifiedSince'),
		limit: input.limit as number | undefined,
		offset: optionalString(input.offset, 'offset'),
		integrationName: optionalString(input.integrationName, 'integrationName'),
		integration: optionalString(input.integration, 'integration'),
		account: optionalString(input.account, 'account'),
		secretName: optionalString(input.secretName, 'secretName'),
		auth: requireAuthMode(input.auth),
	})
}