from rest_framework import serializers
from .models import LobsterMemory, SyncHistory


class LobsterMemorySerializer(serializers.ModelSerializer):
    """龙虾记忆序列化器"""

    status_display = serializers.CharField(source='get_status_display', read_only=True)

    class Meta:
        model = LobsterMemory
        fields = [
            'id',
            'lobster_id',
            'file_path',
            'content',
            'hash',
            'status',
            'status_display',
            'version',
            'size',
            'summary',
            'created_at',
            'updated_at',
        ]
        read_only_fields = ['id', 'created_at', 'updated_at']


class SyncHistorySerializer(serializers.ModelSerializer):
    """同步历史序列化器"""

    action_display = serializers.CharField(source='get_action_display', read_only=True)
    status_display = serializers.CharField(source='get_status_display', read_only=True)
    source_display = serializers.CharField(source='get_source_display', read_only=True)

    class Meta:
        model = SyncHistory
        fields = [
            'id',
            'lobster_id',
            'file_path',
            'action',
            'action_display',
            'status',
            'status_display',
            'source',
            'source_display',
            'old_version',
            'new_version',
            'old_hash',
            'new_hash',
            'file_size',
            'lines_changed',
            'operator',
            'error_message',
            'execution_time',
            'created_at',
        ]
        read_only_fields = ['id', 'created_at']


class FileDiffSerializer(serializers.Serializer):
    """文件差异序列化器"""

    file_path = serializers.CharField()
    lobster_id = serializers.CharField()
    local_content = serializers.CharField(required=False, allow_null=True)
    db_content = serializers.CharField(required=False, allow_null=True)
    local_hash = serializers.CharField(required=False, allow_null=True)
    db_hash = serializers.CharField(required=False, allow_null=True)
    status = serializers.CharField()
    message = serializers.CharField(required=False)
    diff = serializers.DictField(required=False)