# PaperGraph backend env template.
# Copy to backend/.env and fill local secrets.

# LLM API
# OpenAI-compatible chat endpoint.
LLM_API_KEY=your-llm-api-key
LLM_BASE_URL=https://api.deepseek.com/v1
LLM_MODEL_ID=deepseek-v4-flash

# Set to 1 if local proxy causes EOF/SSL errors.
LLM_DISABLE_PROXY=1

# Optional aliases:
# OPENAI_API_KEY=your-openai-compatible-api-key
# OPENAI_BASE_URL=https://api.openai.com/v1
# OPENAI_MODEL=gpt-4o-mini
# AIHUBMIX_API_KEY=your-aihubmix-api-key
# AIHUBMIX_BASE_URL=https://aihubmix.com/v1
# AIHUBMIX_MODEL_ID=your-model-id

# Embedding API
# Optional memory embeddings.
EMBED_MODEL_TYPE=dashscope
EMBED_MODEL_NAME=text-embedding-v4
EMBED_API_KEY=your-embedding-api-key
EMBED_BASE_URL=https://dashscope.aliyuncs.com/compatible-mode/v1

# Academic search APIs
NCBI_EMAIL=
NCBI_API_KEY=

# OpenAlex polite-pool email; blank is allowed.
OPENALEX_MAILTO=

# Optional web pre-search / proceedings discovery.
TAVILY_PRESEARCH_ENABLED=true
TAVILY_API_KEY=

# App
APP_NAME=PaperGraph
APP_VERSION=0.1.0
DEBUG=true

HOST=0.0.0.0
PORT=8000
CORS_ORIGINS=http://localhost:5173,http://localhost:3000,http://127.0.0.1:5173,http://127.0.0.1:3000

# Default runtime data path is backend/data.
# DATA_DIR=/absolute/path/to/DeLunnLi-PaperGraph/backend/data
# DOWNLOADS_DIR=/absolute/path/to/DeLunnLi-PaperGraph/backend/downloads/papers

LOG_LEVEL=INFO

# Search / ranking tuning
PAPERGRAPH_SEARCH_AGENT_WALL_SEC=420
PAPERGRAPH_SEARCH_RECALL_WALL_SEC=60.0
PAPERGRAPH_SEARCH_ARXIV_FALLBACK_WALL_SEC=15.0
PAPERGRAPH_SEARCH_RECALL_HTTP_TIMEOUT_SEC=18.0
PAPERGRAPH_SEARCH_HTTP_MAX_ATTEMPTS=2
PAPERGRAPH_DBLP_MAX_ATTEMPTS=2

PAPERGRAPH_RECALL_MAX_CANDIDATES=24
PAPERGRAPH_FINE_RANK_CANDIDATES=15
PAPERGRAPH_FINE_RANK_TIMEOUT_SEC=30
PAPERGRAPH_FINE_RANK_ABSTRACT_CHARS=200
PAPERGRAPH_FINE_RANK_PIPELINE_WALL_SEC=25.0

PAPERGRAPH_PROCEEDINGS_SUPPLEMENT_ENABLED=true
PAPERGRAPH_PROCEEDINGS_SUPPLEMENT_MIN_CANDIDATES=8
PAPERGRAPH_PROCEEDINGS_AUTO_DISCOVER=true
# PAPERGRAPH_TAVILY_VENUE_DOMAINS_JSON=/absolute/path/to/tavily_venue_domains.json

# Daily recommendations
PAPERGRAPH_DAILY_AUTO_REFRESH=true
PAPERGRAPH_DAILY_AUTO_REFRESH_IDLE_SEC=90
PAPERGRAPH_DAILY_AUTO_REFRESH_POLL_SEC=180
PAPERGRAPH_DAILY_AUTO_REFRESH_STARTUP_GRACE_SEC=120
PAPERGRAPH_DAILY_ARXIV_HTTP_TIMEOUT_SEC=45.0
PAPERGRAPH_DAILY_ARXIV_HTTP_MAX_ATTEMPTS=3

# Empty means built-in arXiv category defaults.
DAILY_ARXIV_CS_CATEGORIES=