.env.example

# ===========================================
# CodeMockLab 环境配置文件
# ===========================================

# 数据库配置 (必需)
# 本地开发: postgresql://user:password@localhost:5432/codemocklab
# Supabase: postgresql://postgres:[PASSWORD]@[HOST]:5432/postgres
# Railway: postgresql://postgres:[PASSWORD]@[HOST]:[PORT]/railway
DATABASE_URL="postgresql://user:password@localhost:5432/codemocklab"

# NextAuth 认证配置 (必需)
# 生产环境请替换为实际域名
NEXTAUTH_URL="http://localhost:3000"
# 使用 openssl rand -base64 32 生成
NEXTAUTH_SECRET="your-nextauth-secret-key-here-min-32-chars"

# AI 服务配置 (至少配置一个)
# Kimi API (Moonshot AI - 推荐)
KIMI_API_KEY="sk-your-kimi-api-key"
# DeepSeek API (性价比高)
DEEPSEEK_API_KEY="sk-your-deepseek-api-key"
# 备用AI服务 (可选)
OPENAI_API_KEY="sk-your-openai-api-key"
ANTHROPIC_API_KEY="sk-ant-your-anthropic-api-key"

# 应用配置
NODE_ENV="development"
# 文件上传限制 (字节)，默认10MB
UPLOAD_MAX_SIZE=10485760

# 面试配置
INTERVIEW_DURATION_DEV=120    # 开发环境面试时长(秒) - 2分钟
INTERVIEW_DURATION_PROD=3600  # 生产环境面试时长(秒) - 60分钟

# Redis 缓存 (可选)
# 本地: redis://localhost:6379
# Upstash: rediss://:[PASSWORD]@[HOST]:[PORT]
REDIS_URL="redis://localhost:6379"

# ===========================================
# Vercel 部署环境变量设置指南
# ===========================================
# 
# 在 Vercel Dashboard → Settings → Environment Variables 中设置:
#
# 1. DATABASE_URL (必需)
#    - Supabase: 从 Settings → Database 获取连接字符串
#    - 格式: postgresql://postgres:[PASSWORD]@[HOST]:5432/postgres
#
# 2. NEXTAUTH_URL (必需)  
#    - 设置为: https://your-project.vercel.app
#    - 如有自定义域名: https://your-domain.com
#
# 3. NEXTAUTH_SECRET (必需)
#    - 生成命令: openssl rand -base64 32
#    - 复制生成的随机字符串
#
# 4. DEEPSEEK_API_KEY (必需)
#    - 从 https://platform.deepseek.com 获取
#    - 格式: sk-xxxxxxxxxx
#
# 5. NODE_ENV (自动设置)
#    - Vercel 会自动设置为 "production"
#
# ===========================================