package com.sb.web.account.controller;

import com.sb.web.account.dto.BudgetPeriodStat;
import com.sb.web.account.dto.BudgetRequest;
import com.sb.web.account.dto.BudgetResponse;
import com.sb.web.account.dto.BudgetStatus;
import com.sb.web.account.service.BudgetService;
import com.sb.web.auth.dto.SessionUser;
import com.sb.web.auth.web.AuthInterceptor;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 예산 API. (/api/account/budgets — 로그인 필요, 본인 데이터만)
 */
@RestController
@RequestMapping("/api/account/budgets")
@RequiredArgsConstructor
public class BudgetController {

    private final BudgetService budgetService;

    @GetMapping
    public List<BudgetResponse> list(
            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) {
        return budgetService.list(current.getId());
    }

    @GetMapping("/status")
    public List<BudgetStatus> status(
            @RequestParam int year,
            @RequestParam int month,
            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) {
        return budgetService.status(current.getId(), year, month);
    }

    /** 기간(일/주/월/년)별 예산 대비 지출 (대시보드 막대그래프) */
    @GetMapping("/period")
    public List<BudgetPeriodStat> period(
            @RequestParam(defaultValue = "MONTH") String unit,
            @RequestParam(required = false) Integer year,
            @RequestParam(required = false) Integer month,
            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) {
        return budgetService.periodStats(current.getId(), unit, year, month);
    }

    @PostMapping
    public ResponseEntity<BudgetResponse> create(
            @Valid @RequestBody BudgetRequest req,
            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) {
        return ResponseEntity.status(HttpStatus.CREATED).body(budgetService.create(req, current.getId()));
    }

    @PutMapping("/{id}")
    public BudgetResponse update(
            @PathVariable Long id,
            @Valid @RequestBody BudgetRequest req,
            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) {
        return budgetService.update(id, req, current.getId());
    }

    @DeleteMapping("/{id}")
    public ResponseEntity<Void> delete(
            @PathVariable Long id,
            @RequestAttribute(AuthInterceptor.CURRENT_MEMBER) SessionUser current) {
        budgetService.delete(id, current.getId());
        return ResponseEntity.noContent().build();
    }
}