import { type Express } from "express";
import { query } from "./db-client";
import { authenticateToken, requirePermission, type AuthenticatedRequest } from "../middleware/auth.middleware";

export function registerOverrideRoutes(app: Express): void {
  // GET /api/overrides?type=income|expense
  app.get("/api/overrides", authenticateToken, requirePermission('finance.manage'), async (req: AuthenticatedRequest, res) => {
    try {
      const type = req.query.type as string;
      const table = type === "expense" ? "expense_category_overrides" : "income_category_overrides";
      const result = await query(`SELECT record_id, category_id, created_at FROM "${table}"`);
      res.json({ success: true, overrides: result.rows });
    } catch (err: any) {
      res.status(500).json({ success: false, error: err.message });
    }
  });

  // POST /api/overrides
  app.post("/api/overrides", authenticateToken, requirePermission('finance.manage'), async (req: AuthenticatedRequest, res) => {
    try {
      const { type, recordId, categoryId } = req.body;
      const table = type === "expense" ? "expense_category_overrides" : "income_category_overrides";
      await query(
        `INSERT INTO "${table}" (record_id, category_id) VALUES ($1, $2) ON CONFLICT (record_id) DO UPDATE SET category_id = EXCLUDED.category_id`,
        [recordId, categoryId]
      );
      res.json({ success: true });
    } catch (err: any) {
      res.status(500).json({ success: false, error: err.message });
    }
  });

  // DELETE /api/overrides/:type/:recordId
  app.delete("/api/overrides/:type/:recordId", authenticateToken, requirePermission('finance.manage'), async (req: AuthenticatedRequest, res) => {
    try {
      const table = req.params.type === "expense" ? "expense_category_overrides" : "income_category_overrides";
      await query(`DELETE FROM "${table}" WHERE record_id = $1`, [req.params.recordId]);
      res.json({ success: true });
    } catch (err: any) {
      res.status(500).json({ success: false, error: err.message });
    }
  });
}