# Environment for running gradio in an air-gapped RHEL 9.6 environment.
#   source /path/to/gradio-template/gradio-offline.env
#
# Without these, gradio and huggingface_hub attempt outbound calls on startup
# (analytics, version check, hub metadata). On an isolated host those calls do
# not fail fast -- they hang until the socket times out, so every launch and
# several component calls stall for seconds.

# -- gradio telemetry / version check ----------------------------------------
export GRADIO_ANALYTICS_ENABLED=False
export DO_NOT_TRACK=1

# -- huggingface_hub: never touch the network --------------------------------
export HF_HUB_OFFLINE=1
export HF_HUB_DISABLE_TELEMETRY=1
export HF_HUB_DISABLE_IMPLICIT_TOKEN=1
# Keep the hub cache on a local, writable path (default is ~/.cache/huggingface).
export HF_HOME="${HF_HOME:-$HOME/.cache/huggingface}"

# -- never try to open a public share tunnel ---------------------------------
# share=True downloads a frcp binary from gradio's CDN; it cannot work offline.
export GRADIO_SHARE=False

# -- bind address / port -----------------------------------------------------
# 127.0.0.1 is the safe default. Set 0.0.0.0 only when the app must be reached
# from other hosts, and open the port first:
#   firewall-cmd --add-port=7860/tcp --permanent && firewall-cmd --reload
export GRADIO_SERVER_NAME=127.0.0.1
export GRADIO_SERVER_PORT=7860

# -- matplotlib: headless, and a writable config dir -------------------------
# Needed for gr.Plot on a server with no display, and for service accounts
# whose HOME is not writable.
export MPLBACKEND=Agg
export MPLCONFIGDIR="${MPLCONFIGDIR:-${TMPDIR:-/tmp}/matplotlib-$(id -u)}"

# -- gradio scratch space ----------------------------------------------------
# Uploads and generated files land here. Put it on a volume with room and, if
# SELinux confines the app, a context the process may write.
export GRADIO_TEMP_DIR="${GRADIO_TEMP_DIR:-${TMPDIR:-/tmp}/gradio-$(id -u)}"
mkdir -p "$MPLCONFIGDIR" "$GRADIO_TEMP_DIR" 2>/dev/null || true