# coding=utf-8
"""
平台API Key模型
存储用户创建的平台API密钥信息
用于调用OpenAI兼容网关的密钥管理
"""
import uuid_utils.compat as uuid

from django.db import models

from common.mixins.app_model_mixin import AppModelMixin
from users.models import User


class PlatformApiKeyStatus(models.TextChoices):
    ACTIVE = "active", "启用"
    DISABLED = "disabled", "禁用"


class PlatformApiKey(AppModelMixin):
    """
    平台API Key

    存储用户创建的平台API密钥信息
    - API Key使用SHA256哈希存储，仅在创建时返回完整密钥
    - 每个用户最多可创建5个有效API Key
    - 支持启用/禁用状态管理
    """
    id = models.UUIDField(primary_key=True, max_length=128, default=uuid.uuid7, editable=False, verbose_name="主键id")

    user = models.ForeignKey(User, on_delete=models.CASCADE, verbose_name="用户")

    api_key_hash = models.CharField(max_length=64, verbose_name="API Key哈希值", db_index=True)

    api_key_prefix = models.CharField(max_length=20, verbose_name="API Key显示前缀")

    name = models.CharField(max_length=100, verbose_name="备注名称", null=True, blank=True)

    status = models.CharField(max_length=20, verbose_name="状态",
                              choices=PlatformApiKeyStatus.choices,
                              default=PlatformApiKeyStatus.ACTIVE, db_index=True)

    last_used_at = models.DateTimeField(verbose_name="最后使用时间", null=True, blank=True)

    class Meta:
        db_table = "platform_api_key"
        verbose_name = "平台API Key"
        verbose_name_plural = "平台API Key"
        ordering = ["-create_time"]

    def __str__(self):
        return f"{self.api_key_prefix} ({self.name or '未命名'})"