<?php

namespace App\Swagger\v1;

/**
 * @OA\Tag(name="Loans", description="가지급금 관리")
 *
 * @OA\Schema(
 *     schema="Loan",
 *     type="object",
 *     description="가지급금 정보",
 *
 *     @OA\Property(property="id", type="integer", example=1, description="가지급금 ID"),
 *     @OA\Property(property="tenant_id", type="integer", example=1, description="테넌트 ID"),
 *     @OA\Property(property="user_id", type="integer", example=1, description="수령자 ID"),
 *     @OA\Property(property="loan_date", type="string", format="date", example="2025-01-15", description="지급일"),
 *     @OA\Property(property="amount", type="number", format="float", example=5000000, description="가지급금액"),
 *     @OA\Property(property="purpose", type="string", example="출장 경비", nullable=true, description="사용 목적"),
 *     @OA\Property(property="settlement_date", type="string", format="date", example="2025-02-15", nullable=true, description="정산일"),
 *     @OA\Property(property="settlement_amount", type="number", format="float", example=5000000, nullable=true, description="정산금액"),
 *     @OA\Property(property="status", type="string", enum={"outstanding","settled","partial"}, example="outstanding", description="상태 (미정산/정산완료/부분정산)"),
 *     @OA\Property(property="status_label", type="string", example="미정산", description="상태 레이블"),
 *     @OA\Property(property="outstanding_amount", type="number", format="float", example=5000000, description="미정산 잔액"),
 *     @OA\Property(property="elapsed_days", type="integer", example=30, description="경과일수"),
 *     @OA\Property(property="withdrawal_id", type="integer", example=1, nullable=true, description="연결된 출금 ID"),
 *     @OA\Property(property="user", type="object", nullable=true,
 *         @OA\Property(property="id", type="integer", example=1),
 *         @OA\Property(property="name", type="string", example="홍길동"),
 *         @OA\Property(property="email", type="string", example="hong@example.com"),
 *         description="수령자 정보"
 *     ),
 *     @OA\Property(property="withdrawal", type="object", nullable=true,
 *         @OA\Property(property="id", type="integer", example=1),
 *         @OA\Property(property="withdrawal_date", type="string", format="date"),
 *         @OA\Property(property="amount", type="number", format="float"),
 *         description="연결된 출금 정보"
 *     ),
 *     @OA\Property(property="creator", type="object", nullable=true,
 *         @OA\Property(property="id", type="integer", example=1),
 *         @OA\Property(property="name", type="string", example="관리자"),
 *         description="생성자 정보"
 *     ),
 *     @OA\Property(property="created_by", type="integer", example=1, nullable=true, description="생성자 ID"),
 *     @OA\Property(property="updated_by", type="integer", example=1, nullable=true, description="수정자 ID"),
 *     @OA\Property(property="created_at", type="string", format="date-time"),
 *     @OA\Property(property="updated_at", type="string", format="date-time")
 * )
 *
 * @OA\Schema(
 *     schema="LoanCreateRequest",
 *     type="object",
 *     required={"user_id","loan_date","amount"},
 *     description="가지급금 등록 요청",
 *
 *     @OA\Property(property="user_id", type="integer", example=1, description="수령자 ID"),
 *     @OA\Property(property="loan_date", type="string", format="date", example="2025-01-15", description="지급일"),
 *     @OA\Property(property="amount", type="number", format="float", example=5000000, description="가지급금액"),
 *     @OA\Property(property="purpose", type="string", example="출장 경비", maxLength=1000, nullable=true, description="사용 목적"),
 *     @OA\Property(property="withdrawal_id", type="integer", example=1, nullable=true, description="연결할 출금 ID")
 * )
 *
 * @OA\Schema(
 *     schema="LoanUpdateRequest",
 *     type="object",
 *     description="가지급금 수정 요청 (미정산 상태만 수정 가능)",
 *
 *     @OA\Property(property="user_id", type="integer", example=1, description="수령자 ID"),
 *     @OA\Property(property="loan_date", type="string", format="date", example="2025-01-15", description="지급일"),
 *     @OA\Property(property="amount", type="number", format="float", example=5000000, description="가지급금액"),
 *     @OA\Property(property="purpose", type="string", example="출장 경비", maxLength=1000, nullable=true, description="사용 목적"),
 *     @OA\Property(property="withdrawal_id", type="integer", example=1, nullable=true, description="연결할 출금 ID")
 * )
 *
 * @OA\Schema(
 *     schema="LoanSettleRequest",
 *     type="object",
 *     required={"settlement_date","settlement_amount"},
 *     description="가지급금 정산 요청",
 *
 *     @OA\Property(property="settlement_date", type="string", format="date", example="2025-02-15", description="정산일"),
 *     @OA\Property(property="settlement_amount", type="number", format="float", example=5000000, minimum=0.01, description="정산금액")
 * )
 *
 * @OA\Schema(
 *     schema="LoanSummary",
 *     type="object",
 *     description="가지급금 요약",
 *
 *     @OA\Property(property="total_count", type="integer", example=10, description="전체 건수"),
 *     @OA\Property(property="outstanding_count", type="integer", example=5, description="미정산 건수"),
 *     @OA\Property(property="settled_count", type="integer", example=3, description="정산완료 건수"),
 *     @OA\Property(property="partial_count", type="integer", example=2, description="부분정산 건수"),
 *     @OA\Property(property="total_amount", type="number", format="float", example=50000000, description="총 가지급금액"),
 *     @OA\Property(property="total_settled", type="number", format="float", example=30000000, description="총 정산금액"),
 *     @OA\Property(property="total_outstanding", type="number", format="float", example=20000000, description="총 미정산액")
 * )
 *
 * @OA\Schema(
 *     schema="LoanInterestCalculation",
 *     type="object",
 *     description="인정이자 계산 결과",
 *
 *     @OA\Property(property="year", type="integer", example=2025, description="계산 연도"),
 *     @OA\Property(property="interest_rate", type="number", format="float", example=4.6, description="인정이자율 (%)"),
 *     @OA\Property(property="base_date", type="string", format="date", example="2025-12-31", description="기준일"),
 *     @OA\Property(property="summary", type="object",
 *         @OA\Property(property="total_balance", type="number", format="float", example=50000000, description="총 미정산 잔액"),
 *         @OA\Property(property="total_recognized_interest", type="number", format="float", example=2300000, description="총 인정이자"),
 *         @OA\Property(property="total_corporate_tax", type="number", format="float", example=437000, description="법인세 추가 (19%)"),
 *         @OA\Property(property="total_income_tax", type="number", format="float", example=805000, description="소득세 추가 (35%)"),
 *         @OA\Property(property="total_local_tax", type="number", format="float", example=80500, description="지방소득세 (10%)"),
 *         @OA\Property(property="total_tax", type="number", format="float", example=1322500, description="총 세금"),
 *         description="요약"
 *     ),
 *     @OA\Property(property="details", type="array",
 *
 *         @OA\Items(
 *
 *             @OA\Property(property="loan_id", type="integer", example=1),
 *             @OA\Property(property="user", type="object",
 *                 @OA\Property(property="id", type="integer", example=1),
 *                 @OA\Property(property="name", type="string", example="홍길동"),
 *                 @OA\Property(property="email", type="string", example="hong@example.com")
 *             ),
 *             @OA\Property(property="loan_date", type="string", format="date", example="2025-01-15"),
 *             @OA\Property(property="amount", type="number", format="float", example=5000000),
 *             @OA\Property(property="settlement_amount", type="number", format="float", example=0),
 *             @OA\Property(property="outstanding_amount", type="number", format="float", example=5000000),
 *             @OA\Property(property="elapsed_days", type="integer", example=350),
 *             @OA\Property(property="interest_rate", type="number", format="float", example=4.6),
 *             @OA\Property(property="recognized_interest", type="number", format="float", example=220548),
 *             @OA\Property(property="corporate_tax", type="number", format="float", example=41904),
 *             @OA\Property(property="income_tax", type="number", format="float", example=77192),
 *             @OA\Property(property="local_tax", type="number", format="float", example=7719),
 *             @OA\Property(property="total_tax", type="number", format="float", example=126815)
 *         ),
 *         description="상세 내역"
 *     )
 * )
 *
 * @OA\Schema(
 *     schema="LoanInterestReport",
 *     type="object",
 *     description="연간 인정이자 리포트",
 *
 *     @OA\Property(property="year", type="integer", example=2025, description="연도"),
 *     @OA\Property(property="interest_rate", type="number", format="float", example=4.6, description="인정이자율 (%)"),
 *     @OA\Property(property="users", type="array",
 *
 *         @OA\Items(
 *
 *             @OA\Property(property="user", type="object",
 *                 @OA\Property(property="id", type="integer", example=1),
 *                 @OA\Property(property="name", type="string", example="홍길동"),
 *                 @OA\Property(property="email", type="string", example="hong@example.com")
 *             ),
 *             @OA\Property(property="loan_count", type="integer", example=3, description="가지급금 건수"),
 *             @OA\Property(property="total_amount", type="number", format="float", example=15000000, description="총 가지급금액"),
 *             @OA\Property(property="total_settled", type="number", format="float", example=5000000, description="총 정산금액"),
 *             @OA\Property(property="total_outstanding", type="number", format="float", example=10000000, description="총 미정산액"),
 *             @OA\Property(property="recognized_interest", type="number", format="float", example=460000, description="인정이자"),
 *             @OA\Property(property="total_tax", type="number", format="float", example=265000, description="총 세금")
 *         ),
 *         description="사용자별 내역"
 *     ),
 *     @OA\Property(property="grand_total", type="object",
 *         @OA\Property(property="total_amount", type="number", format="float", example=50000000),
 *         @OA\Property(property="total_outstanding", type="number", format="float", example=30000000),
 *         @OA\Property(property="recognized_interest", type="number", format="float", example=1380000),
 *         @OA\Property(property="total_tax", type="number", format="float", example=795000),
 *         description="전체 합계"
 *     )
 * )
 *
 * @OA\Schema(
 *     schema="LoanDashboard",
 *     type="object",
 *     description="가지급금 대시보드 응답",
 *
 *     @OA\Property(property="summary", type="object",
 *         @OA\Property(property="total_outstanding", type="number", format="float", example=20000000, description="미정산 가지급금 총액"),
 *         @OA\Property(property="recognized_interest", type="number", format="float", example=920000, description="인정이자 (연 4.6%)"),
 *         @OA\Property(property="outstanding_count", type="integer", example=5, description="미정산 건수"),
 *         description="요약 정보"
 *     ),
 *     @OA\Property(property="loans", type="array",
 *
 *         @OA\Items(
 *
 *             @OA\Property(property="id", type="integer", example=1, description="가지급금 ID"),
 *             @OA\Property(property="loan_date", type="string", format="date", example="2025-01-15", description="지급일"),
 *             @OA\Property(property="user_name", type="string", example="홍길동", description="수령자명"),
 *             @OA\Property(property="category", type="string", example="카드", enum={"카드","계좌"}, description="구분"),
 *             @OA\Property(property="amount", type="number", format="float", example=5000000, description="금액"),
 *             @OA\Property(property="status", type="string", example="outstanding", enum={"outstanding","settled","partial"}, description="상태"),
 *             @OA\Property(property="content", type="string", example="출장 경비", description="내용/목적")
 *         ),
 *         description="최근 가지급금 목록 (미정산 우선, 최대 10건)"
 *     )
 * )
 *
 * @OA\Schema(
 *     schema="LoanTaxSimulation",
 *     type="object",
 *     description="세금 시뮬레이션 응답",
 *
 *     @OA\Property(property="year", type="integer", example=2026, description="시뮬레이션 연도"),
 *     @OA\Property(property="loan_summary", type="object",
 *         @OA\Property(property="total_outstanding", type="number", format="float", example=20000000, description="가지급금 잔액"),
 *         @OA\Property(property="recognized_interest", type="number", format="float", example=920000, description="인정이자"),
 *         @OA\Property(property="interest_rate", type="number", format="float", example=4.6, description="이자율 (%)"),
 *         description="가지급금 요약"
 *     ),
 *     @OA\Property(property="corporate_tax", type="object",
 *         @OA\Property(property="without_loan", type="object",
 *             @OA\Property(property="taxable_income", type="number", format="float", example=0),
 *             @OA\Property(property="tax_amount", type="number", format="float", example=0),
 *             description="가지급금 없을 때"
 *         ),
 *         @OA\Property(property="with_loan", type="object",
 *             @OA\Property(property="taxable_income", type="number", format="float", example=920000),
 *             @OA\Property(property="tax_amount", type="number", format="float", example=174800),
 *             description="가지급금 있을 때"
 *         ),
 *         @OA\Property(property="difference", type="number", format="float", example=174800, description="차이 (가중액)"),
 *         @OA\Property(property="rate_info", type="string", example="법인세 19% 적용", description="적용 세율 정보"),
 *         description="법인세 비교"
 *     ),
 *     @OA\Property(property="income_tax", type="object",
 *         @OA\Property(property="without_loan", type="object",
 *             @OA\Property(property="taxable_income", type="number", format="float", example=0),
 *             @OA\Property(property="tax_rate", type="string", example="0%"),
 *             @OA\Property(property="tax_amount", type="number", format="float", example=0),
 *             description="가지급금 없을 때"
 *         ),
 *         @OA\Property(property="with_loan", type="object",
 *             @OA\Property(property="taxable_income", type="number", format="float", example=920000),
 *             @OA\Property(property="tax_rate", type="string", example="35%"),
 *             @OA\Property(property="tax_amount", type="number", format="float", example=354200),
 *             description="가지급금 있을 때"
 *         ),
 *         @OA\Property(property="difference", type="number", format="float", example=354200, description="차이"),
 *         @OA\Property(property="breakdown", type="object",
 *             @OA\Property(property="income_tax", type="number", format="float", example=322000, description="소득세"),
 *             @OA\Property(property="local_tax", type="number", format="float", example=32200, description="지방소득세"),
 *             @OA\Property(property="insurance", type="number", format="float", example=82800, description="4대보험 추정"),
 *             description="세부 내역"
 *         ),
 *         description="종합소득세 비교"
 *     )
 * )
 */
class LoanApi
{
    /**
     * @OA\Get(
     *     path="/api/v1/loans",
     *     tags={"Loans"},
     *     summary="가지급금 목록 조회",
     *     description="가지급금 목록을 조회합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="user_id", in="query", description="수령자 ID", @OA\Schema(type="integer")),
     *     @OA\Parameter(name="status", in="query", description="상태", @OA\Schema(type="string", enum={"outstanding","settled","partial"})),
     *     @OA\Parameter(name="start_date", in="query", description="시작일 (지급일 기준)", @OA\Schema(type="string", format="date")),
     *     @OA\Parameter(name="end_date", in="query", description="종료일 (지급일 기준)", @OA\Schema(type="string", format="date")),
     *     @OA\Parameter(name="search", in="query", description="검색어 (수령자명, 목적)", @OA\Schema(type="string", maxLength=100)),
     *     @OA\Parameter(name="sort_by", in="query", description="정렬 기준", @OA\Schema(type="string", enum={"loan_date","amount","status","created_at"}, default="loan_date")),
     *     @OA\Parameter(name="sort_dir", in="query", description="정렬 방향", @OA\Schema(type="string", enum={"asc","desc"}, default="desc")),
     *     @OA\Parameter(ref="#/components/parameters/Page"),
     *     @OA\Parameter(ref="#/components/parameters/Size"),
     *
     *     @OA\Response(
     *         response=200,
     *         description="조회 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(
     *                         property="data",
     *                         type="object",
     *                         @OA\Property(property="current_page", type="integer", example=1),
     *                         @OA\Property(property="data", type="array", @OA\Items(ref="#/components/schemas/Loan")),
     *                         @OA\Property(property="per_page", type="integer", example=20),
     *                         @OA\Property(property="total", type="integer", example=30)
     *                     )
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function index() {}

    /**
     * @OA\Post(
     *     path="/api/v1/loans",
     *     tags={"Loans"},
     *     summary="가지급금 등록",
     *     description="새로운 가지급금을 등록합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\RequestBody(
     *         required=true,
     *
     *         @OA\JsonContent(ref="#/components/schemas/LoanCreateRequest")
     *     ),
     *
     *     @OA\Response(
     *         response=201,
     *         description="등록 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/Loan")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=400, description="잘못된 요청", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function store() {}

    /**
     * @OA\Get(
     *     path="/api/v1/loans/summary",
     *     tags={"Loans"},
     *     summary="가지급금 요약 조회",
     *     description="가지급금 요약 정보를 조회합니다. 특정 사용자 지정 시 해당 사용자만 집계합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="user_id", in="query", description="수령자 ID (미지정 시 전체)", @OA\Schema(type="integer")),
     *
     *     @OA\Response(
     *         response=200,
     *         description="조회 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/LoanSummary")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function summary() {}

    /**
     * @OA\Get(
     *     path="/api/v1/loans/dashboard",
     *     tags={"Loans"},
     *     summary="가지급금 대시보드 조회",
     *     description="CEO 대시보드 카드/가지급금 관리 섹션(cm2) 모달용 데이터를 조회합니다. 요약 정보와 최근 가지급금 목록을 반환합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Response(
     *         response=200,
     *         description="조회 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/LoanDashboard")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function dashboard() {}

    /**
     * @OA\Get(
     *     path="/api/v1/loans/tax-simulation",
     *     tags={"Loans"},
     *     summary="세금 시뮬레이션",
     *     description="가지급금으로 인한 법인세/소득세 추가 부담을 시뮬레이션합니다. CEO 대시보드 카드/가지급금 관리 섹션(cm2)용.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="year", in="query", required=true, description="시뮬레이션 연도", @OA\Schema(type="integer", example=2026, minimum=2000, maximum=2100)),
     *
     *     @OA\Response(
     *         response=200,
     *         description="시뮬레이션 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/LoanTaxSimulation")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=400, description="잘못된 요청", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function taxSimulation() {}

    /**
     * @OA\Post(
     *     path="/api/v1/loans/calculate-interest",
     *     tags={"Loans"},
     *     summary="인정이자 계산",
     *     description="미정산 가지급금에 대한 인정이자를 계산합니다. 법인세/소득세/지방소득세가 자동 계산됩니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\RequestBody(
     *         required=true,
     *
     *         @OA\JsonContent(
     *             required={"year"},
     *
     *             @OA\Property(property="year", type="integer", example=2025, minimum=2000, maximum=2100, description="계산 연도"),
     *             @OA\Property(property="user_id", type="integer", example=1, nullable=true, description="특정 사용자 ID (미지정 시 전체)")
     *         )
     *     ),
     *
     *     @OA\Response(
     *         response=200,
     *         description="계산 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/LoanInterestCalculation")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=400, description="잘못된 요청", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function calculateInterest() {}

    /**
     * @OA\Get(
     *     path="/api/v1/loans/interest-report/{year}",
     *     tags={"Loans"},
     *     summary="인정이자 연간 리포트",
     *     description="특정 연도의 인정이자 리포트를 사용자별로 조회합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="year", in="path", required=true, description="연도", @OA\Schema(type="integer", example=2025)),
     *
     *     @OA\Response(
     *         response=200,
     *         description="조회 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/LoanInterestReport")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function interestReport() {}

    /**
     * @OA\Get(
     *     path="/api/v1/loans/{id}",
     *     tags={"Loans"},
     *     summary="가지급금 상세 조회",
     *     description="가지급금 상세 정보를 조회합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="id", in="path", required=true, description="가지급금 ID", @OA\Schema(type="integer")),
     *
     *     @OA\Response(
     *         response=200,
     *         description="조회 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/Loan")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=404, description="가지급금 없음", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function show() {}

    /**
     * @OA\Put(
     *     path="/api/v1/loans/{id}",
     *     tags={"Loans"},
     *     summary="가지급금 수정",
     *     description="가지급금 정보를 수정합니다. 미정산(outstanding) 상태에서만 수정 가능합니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="id", in="path", required=true, description="가지급금 ID", @OA\Schema(type="integer")),
     *
     *     @OA\RequestBody(
     *         required=true,
     *
     *         @OA\JsonContent(ref="#/components/schemas/LoanUpdateRequest")
     *     ),
     *
     *     @OA\Response(
     *         response=200,
     *         description="수정 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/Loan")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=400, description="잘못된 요청 (정산됨/부분정산 상태)", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=404, description="가지급금 없음", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function update() {}

    /**
     * @OA\Delete(
     *     path="/api/v1/loans/{id}",
     *     tags={"Loans"},
     *     summary="가지급금 삭제",
     *     description="가지급금을 삭제합니다. 미정산(outstanding) 상태에서만 삭제 가능합니다. (Soft Delete)",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="id", in="path", required=true, description="가지급금 ID", @OA\Schema(type="integer")),
     *
     *     @OA\Response(
     *         response=200,
     *         description="삭제 성공",
     *
     *         @OA\JsonContent(ref="#/components/schemas/ApiResponse")
     *     ),
     *
     *     @OA\Response(response=400, description="잘못된 요청 (정산됨/부분정산 상태)", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=404, description="가지급금 없음", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function destroy() {}

    /**
     * @OA\Post(
     *     path="/api/v1/loans/{id}/settle",
     *     tags={"Loans"},
     *     summary="가지급금 정산",
     *     description="가지급금을 정산합니다. 미정산(outstanding) 또는 부분정산(partial) 상태에서만 가능합니다. 부분 정산 시 누적됩니다.",
     *     security={{"ApiKeyAuth":{}},{"BearerAuth":{}}},
     *
     *     @OA\Parameter(name="id", in="path", required=true, description="가지급금 ID", @OA\Schema(type="integer")),
     *
     *     @OA\RequestBody(
     *         required=true,
     *
     *         @OA\JsonContent(ref="#/components/schemas/LoanSettleRequest")
     *     ),
     *
     *     @OA\Response(
     *         response=200,
     *         description="정산 성공",
     *
     *         @OA\JsonContent(
     *             allOf={
     *
     *                 @OA\Schema(ref="#/components/schemas/ApiResponse"),
     *                 @OA\Schema(
     *
     *                     @OA\Property(property="data", ref="#/components/schemas/Loan")
     *                 )
     *             }
     *         )
     *     ),
     *
     *     @OA\Response(response=400, description="잘못된 요청 (이미 정산 완료 또는 정산금액 초과)", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=401, description="인증 실패", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=404, description="가지급금 없음", @OA\JsonContent(ref="#/components/schemas/ErrorResponse")),
     *     @OA\Response(response=500, description="서버 에러", @OA\JsonContent(ref="#/components/schemas/ErrorResponse"))
     * )
     */
    public function settle() {}
}
