# Copyright 2025 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from google.cloud.bigquery import SchemaField
from pydantic import BaseModel
from typing import List, Optional


class Embedding(BaseModel):
    id: str
    text: str
    index: str
    author: str
    timestamp: Optional[str] = None

    @classmethod
    def __schema__(cls) -> List[SchemaField]:
        return [
            SchemaField("id", "STRING", mode="REQUIRED"),
            SchemaField("text", "STRING", mode="REQUIRED"),
            SchemaField("index", "STRING", mode="REQUIRED"),
            SchemaField("author", "STRING", mode="REQUIRED"),
            SchemaField("timestamp", "TIMESTAMP", mode="REQUIRED"),
        ]

    def to_dict(self):
        return {
            "id": self.id,
            "text": self.text,
            "index": self.index,
            "author": self.author,
            "timestamp": self.timestamp,
        }

    def to_insert_string(self):
        return f'"{self.id}", """{self.text}""", "{self.index}", "{self.author}", CURRENT_TIMESTAMP()'