package jnpf.limsService.impl;

import jnpf.limsEntity.LimsRecipientRef;
import jnpf.limsEntity.LimsRecipientType;
import jnpf.limsService.LimsRecipientResolver;
import jnpf.permission.RoleApi;
import jnpf.permission.RoleRelationApi;
import jnpf.permission.UserApi;
import jnpf.permission.UserRelationApi;
import jnpf.permission.entity.RoleEntity;
import jnpf.permission.entity.RoleRelationEntity;
import jnpf.permission.entity.UserEntity;
import jnpf.permission.entity.UserRelationEntity;
import jnpf.permission.model.rolerelaiton.RoleRelationModel;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Collectors;

@Slf4j
@Service
@RequiredArgsConstructor
public class LimsRecipientResolverImpl implements LimsRecipientResolver {
    private final UserApi userApi;
    private final UserRelationApi userRelationApi;
    private final RoleApi roleApi;
    private final RoleRelationApi roleRelationApi;

    @Override
    public List<String> resolve(String tenantId, List<LimsRecipientRef> refs) {
        if (refs == null || refs.isEmpty()) {
            return Collections.emptyList();
        }
        Set<String> candidateIds = new LinkedHashSet<>();
        for (LimsRecipientRef ref : refs) {
            if (ref == null || ref.getType() == null || !StringUtils.hasText(ref.getValue())) {
                continue;
            }
            if (ref.getType() == LimsRecipientType.USER) {
                candidateIds.add(ref.getValue());
            } else if (ref.getType() == LimsRecipientType.POSITION) {
                addRelationUsers(candidateIds, ref.getValue(), "Position");
            } else if (ref.getType() == LimsRecipientType.ROLE) {
                addRoleUsers(candidateIds, ref.getValue());
            } else if (ref.getType() == LimsRecipientType.ROLE_ENCODE) {
                List<RoleEntity> roles = roleApi.getListAll();
                RoleEntity role = (roles == null ? Collections.<RoleEntity>emptyList() : roles).stream()
                        .filter(item -> !StringUtils.hasText(tenantId)
                                || Objects.equals(tenantId, item.getTenantId()))
                        .filter(item -> ref.getValue().equals(item.getEnCode()))
                        .findFirst().orElse(null);
                if (role != null) {
                    addRoleUsers(candidateIds, role.getId());
                }
            }
        }
        if (candidateIds.isEmpty()) {
            return Collections.emptyList();
        }
        List<UserEntity> users = userApi.getUserName(new ArrayList<>(candidateIds));
        if (users == null) {
            return Collections.emptyList();
        }
        return users.stream()
                .filter(Objects::nonNull)
                .filter(user -> Integer.valueOf(1).equals(user.getEnabledMark()))
                .filter(user -> !Integer.valueOf(1).equals(user.getDeleteMark()))
                .filter(user -> !StringUtils.hasText(tenantId) || Objects.equals(tenantId, user.getTenantId()))
                .map(UserEntity::getId)
                .filter(StringUtils::hasText)
                .distinct()
                .collect(Collectors.toList());
    }

    private void addRelationUsers(Set<String> userIds, String objectId, String objectType) {
        List<UserRelationEntity> relations = userRelationApi.getListByObjectIdAll(Collections.singletonList(objectId));
        if (relations != null) {
            relations.stream()
                    .filter(item -> objectType.equalsIgnoreCase(item.getObjectType()))
                    .map(UserRelationEntity::getUserId)
                    .filter(StringUtils::hasText)
                    .forEach(userIds::add);
        }
    }

    private void addRoleUsers(Set<String> userIds, String roleId) {
        RoleRelationModel model = new RoleRelationModel();
        model.setRoleId(Collections.singletonList(roleId));
        model.setObjectType("user");
        List<RoleRelationEntity> relations = roleRelationApi.getListByRoleId(model);
        if (relations != null) {
            relations.stream()
                    .filter(item -> "user".equalsIgnoreCase(item.getObjectType()))
                    .map(RoleRelationEntity::getObjectId)
                    .filter(StringUtils::hasText)
                    .forEach(userIds::add);
        }
    }
}