import type Database from "bun:sqlite";

import type { RuntimeMode, SettingsData } from "../../shared/api";
import type { Logger } from "../logger";

import { getSettings, updateSettings } from "../db/settings";
import { createApiError, jsonResponse } from "../helpers";

export function handleGetSettings(_req: Request, db: Database, mode: RuntimeMode, _logger: Logger): Response {
  const data = getSettings(db);
  return jsonResponse(data, { mode });
}

export async function handleUpdateSettings(
  req: Request,
  db: Database,
  mode: RuntimeMode,
  logger: Logger,
): Promise<Response> {
  let body: Partial<SettingsData>;
  try {
    body = (await req.json()) as Partial<SettingsData>;
  } catch {
    return jsonResponse(createApiError("Invalid JSON body", 400), { mode, status: 400 });
  }

  if (body.theme !== undefined && typeof body.theme !== "string") {
    return jsonResponse(createApiError("theme must be a string", 400), { mode, status: 400 });
  }

  if (body.theme !== undefined && body.theme !== "dark" && body.theme !== "light" && body.theme !== "system") {
    return jsonResponse(createApiError("theme 仅支持 dark、light、system", 400), { mode, status: 400 });
  }

  if (body.compact !== undefined && typeof body.compact !== "boolean") {
    return jsonResponse(createApiError("compact 必须为布尔值", 400), { mode, status: 400 });
  }

  const result = updateSettings(db, body, logger);
  logger.info({ data: result }, "设置已更新");
  return jsonResponse(result, { mode });
}