package com.mydreamjob.talentinvitation;

import jakarta.persistence.LockModeType;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.*;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

import java.time.LocalDateTime;
import java.util.Optional;

@Repository
public interface TalentInvitationRepository extends JpaRepository<TalentInvitation, Long> {
    Optional<TalentInvitation> findByCompanyIdAndIdempotencyKey(Long companyId, String idempotencyKey);
    Optional<TalentInvitation> findByIdAndCompanyId(Long id, Long companyId);
    Optional<TalentInvitation> findByIdAndStudentUserId(Long id, Long studentUserId);
    Optional<TalentInvitation> findByCompanyIdAndJobIdAndStudentUserIdAndStatus(
            Long companyId, Long jobId, Long studentUserId, String status);
    Page<TalentInvitation> findByCompanyIdOrderByCreatedAtDescIdDesc(Long companyId, Pageable pageable);
    Page<TalentInvitation> findByStudentUserIdOrderByCreatedAtDescIdDesc(Long studentUserId, Pageable pageable);

    @Query("select count(t) from TalentInvitation t where t.companyId=:companyId and t.createdAt>=:from and t.createdAt<:to")
    long countCreatedBetween(@Param("companyId") Long companyId, @Param("from") LocalDateTime from,
                             @Param("to") LocalDateTime to);

    @Query("select count(t) from TalentInvitation t where t.companyId=:companyId and t.jobId=:jobId "
            + "and t.createdAt>=:from and t.createdAt<:to")
    long countJobCreatedBetween(@Param("companyId") Long companyId, @Param("jobId") Long jobId,
                                @Param("from") LocalDateTime from, @Param("to") LocalDateTime to);

    @Query("select case when count(t)>0 then true else false end from TalentInvitation t "
            + "where t.companyId=:companyId and t.studentUserId=:studentUserId and t.expiresAt>:since")
    boolean existsInCooldown(@Param("companyId") Long companyId, @Param("studentUserId") Long studentUserId,
                             @Param("since") LocalDateTime since);

    @Modifying(clearAutomatically = true, flushAutomatically = true)
    @Query("update TalentInvitation t set t.status=:status, t.activeKey=null, t.decidedAt=:decidedAt, "
            + "t.version=t.version+1 where t.id=:id and t.studentUserId=:studentUserId "
            + "and t.status='PENDING' and t.version=:version and t.expiresAt>:now")
    int decide(@Param("id") Long id, @Param("studentUserId") Long studentUserId,
               @Param("status") String status, @Param("version") Long version,
               @Param("decidedAt") LocalDateTime decidedAt, @Param("now") LocalDateTime now);

    @Modifying(clearAutomatically = true, flushAutomatically = true)
    @Query("update TalentInvitation t set t.conversationId=:conversationId "
            + "where t.id=:id and t.studentUserId=:studentUserId and t.status='ACCEPTED' "
            + "and t.version=:version and t.conversationId is null")
    int attachConversation(@Param("id") Long id, @Param("studentUserId") Long studentUserId,
                            @Param("conversationId") Long conversationId, @Param("version") Long version);

    @Modifying(clearAutomatically = true, flushAutomatically = true)
    @Query("update TalentInvitation t set t.status='EXPIRED', t.activeKey=null, t.decidedAt=:now, "
            + "t.version=t.version+1 where t.id=:id and t.status='PENDING' and t.expiresAt<=:now")
    int expire(@Param("id") Long id, @Param("now") LocalDateTime now);
}