package com.paymentlink.controller.api;

import com.paymentlink.service.TaxService;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/api/tax")
public class TaxApiController {

    private final TaxService taxService;

    public TaxApiController(TaxService taxService) {
        this.taxService = taxService;
    }

    /**
     * GET /api/tax/calculate - Calculate tax
     */
    @GetMapping("/calculate")
    public ResponseEntity<Map<String, Object>> calculateTax(
            @RequestParam Long subtotal,
            @RequestParam(required = false) String country,
            @RequestParam(required = false) String state) {
        
        try {
            long taxAmount = taxService.calculateTax(subtotal, country, state);
            double taxRate = taxService.getTaxRate(country, state);

            Map<String, Object> response = new HashMap<>();
            response.put("success", true);
            response.put("taxAmount", taxAmount);
            response.put("taxRate", taxRate);
            return ResponseEntity.ok(response);

        } catch (Exception e) {
            Map<String, Object> error = new HashMap<>();
            error.put("success", false);
            error.put("error", e.getMessage());
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(error);
        }
    }

    /**
     * GET /api/tax/rate - Get tax rate
     */
    @GetMapping("/rate")
    public ResponseEntity<Map<String, Object>> getTaxRate(
            @RequestParam(required = false) String country,
            @RequestParam(required = false) String state) {
        
        try {
            double taxRate = taxService.getTaxRate(country, state);

            Map<String, Object> response = new HashMap<>();
            response.put("success", true);
            response.put("taxRate", taxRate);
            return ResponseEntity.ok(response);

        } catch (Exception e) {
            Map<String, Object> error = new HashMap<>();
            error.put("success", false);
            error.put("error", e.getMessage());
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(error);
        }
    }
}