package com.ecommerce.controller;

import com.ecommerce.dto.request.CartItemRequest;
import com.ecommerce.dto.response.ApiResponse;
import com.ecommerce.dto.response.CartResponse;
import com.ecommerce.service.CartService;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/api/cart")
@RequiredArgsConstructor
public class CartController {
    
    private final CartService cartService;
    
    @GetMapping
    public ResponseEntity<ApiResponse<CartResponse>> getCart() {
        CartResponse cart = cartService.getCart();
        return ResponseEntity.ok(ApiResponse.success(cart));
    }
    
    @PostMapping("/add")
    public ResponseEntity<ApiResponse<CartResponse>> addToCart(@Valid @RequestBody CartItemRequest request) {
        CartResponse cart = cartService.addToCart(request);
        return ResponseEntity.ok(ApiResponse.success("Item added to cart", cart));
    }
    
    @PutMapping("/update/{productId}")
    public ResponseEntity<ApiResponse<CartResponse>> updateCartItem(
            @PathVariable String productId,
            @RequestParam int quantity) {
        CartResponse cart = cartService.updateCartItem(productId, quantity);
        return ResponseEntity.ok(ApiResponse.success("Cart updated", cart));
    }
    
    @DeleteMapping("/remove/{productId}")
    public ResponseEntity<ApiResponse<CartResponse>> removeFromCart(@PathVariable String productId) {
        CartResponse cart = cartService.removeFromCart(productId);
        return ResponseEntity.ok(ApiResponse.success("Item removed from cart", cart));
    }
    
    @DeleteMapping("/clear")
    public ResponseEntity<ApiResponse<Void>> clearCart() {
        cartService.clearCart();
        return ResponseEntity.ok(ApiResponse.success("Cart cleared", null));
    }
}