import { BUILTIN_SLASH_COMMANDS } from "../../../../../../packages/coding-agent/src/core/slash-commands.ts";
import { filterWebUiSlashCommands, type SlashCommandEntry } from "../slash/dispatch.ts";
import type { SendCmd } from "../types/context.ts";

export async function listSlashCommands(sendCmd: SendCmd): Promise<SlashCommandEntry[]> {
	const builtinNames = new Set(BUILTIN_SLASH_COMMANDS.map((command) => command.name));
	const commands: SlashCommandEntry[] = BUILTIN_SLASH_COMMANDS.map((command) => ({
		name: command.name,
		description: command.description,
		source: "builtin",
	}));

	const response = await sendCmd({ type: "get_commands" });
	if (!response.success) throw new Error(response.error || "读取命令失败");

	for (const command of response.data?.commands || []) {
		const name = String(command?.name || "");
		if (!name) continue;

		const source = String(command?.source || "");
		if (source === "extension" && builtinNames.has(name)) continue;

		if (source === "prompt") {
			commands.push({
				name,
				description: String(command.description || ""),
				source: "prompt",
			});
			continue;
		}

		if (source === "skill") {
			commands.push({
				name,
				description: String(command.description || ""),
				source: "skill",
			});
			continue;
		}

		if (source === "extension") {
			commands.push({
				name,
				description: String(command.description || ""),
				source: "extension",
			});
		}
	}

	return filterWebUiSlashCommands(commands).sort((a, b) => a.name.localeCompare(b.name));
}