package com.ruoyi.system.service.impl;

import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.ruoyi.system.domain.TBatteryGroup;
import com.ruoyi.system.domain.TBatteryGroupRelationField;
import com.ruoyi.system.domain.TTestFieldSnapshot;
import com.ruoyi.system.mapper.TSharedFieldSnapshotMapper;
import com.ruoyi.system.service.ITBatteryGroupService;
import com.ruoyi.system.service.ISharedFieldSnapshotService;

/** 共享业务字段快照服务实现。 */
@Service
public class TSharedFieldSnapshotServiceImpl implements ISharedFieldSnapshotService
{
    @Autowired
    private ITBatteryGroupService batteryGroupService;

    @Autowired
    private TSharedFieldSnapshotMapper snapshotMapper;

    @Override
    public List<TTestFieldSnapshot> createForBatteryGroup(Long groupId)
    {
        TBatteryGroup group = batteryGroupService.selectBatteryGroupById(groupId);
        List<TTestFieldSnapshot> snapshots = new ArrayList<>();
        for (TBatteryGroupRelationField field : mutable(group.getTemplateFields()))
        {
            snapshots.add(snapshot(field.getBatteryGroupFieldId(), field.getFieldName(), field.getFieldType(),
                    field.getFieldValue()));
        }
        return snapshots;
    }

    @Override
    public List<TTestFieldSnapshot> resolveForUpdate(Long currentGroupId, Long nextGroupId,
            List<TTestFieldSnapshot> currentSnapshots)
    {
        // 同组编辑不能重新读取活动值，否则会静默改写测试创建时保存的业务事实。
        if (nextGroupId.equals(currentGroupId))
        {
            return mutable(currentSnapshots).stream()
                    .map(source -> snapshot(source.getFieldDefinitionId(), source.getFieldName(),
                            source.getFieldType(), source.getFieldValue()))
                    .toList();
        }
        return createForBatteryGroup(nextGroupId);
    }

    @Override
    public List<TTestFieldSnapshot> selectByTestId(Long testId)
    {
        return mutable(snapshotMapper.selectByTestId(testId));
    }

    @Override
    public void saveForTest(Long testId, List<TTestFieldSnapshot> snapshots)
    {
        for (TTestFieldSnapshot snapshot : mutable(snapshots))
        {
            snapshot.setTestId(testId);
            snapshotMapper.insert(snapshot);
        }
    }

    @Override
    public void deleteByTestId(Long testId)
    {
        snapshotMapper.deleteByTestId(testId);
    }

    private TTestFieldSnapshot snapshot(Long definitionId, String name, String type, String value)
    {
        TTestFieldSnapshot snapshot = new TTestFieldSnapshot();
        snapshot.setFieldDefinitionId(definitionId);
        snapshot.setFieldName(name);
        snapshot.setFieldType(type);
        snapshot.setFieldValue(value);
        return snapshot;
    }

    private <T> List<T> mutable(List<T> values)
    {
        return values == null ? new ArrayList<>() : new ArrayList<>(values);
    }
}