FROM debian:bookworm-slim

WORKDIR /app

RUN apt-get update && \
    apt-get install -y wget ca-certificates curl jq gettext-base && \
    rm -rf /var/lib/apt/lists/*

# Download and extract latest sub2api binary for Linux amd64
RUN LATEST_URL=$(curl -s https://api.github.com/repos/Wei-Shaw/sub2api/releases/latest | \
        jq -r '.assets[] | select(.name | test("linux.*amd64")) | .browser_download_url' | head -1) && \
    echo "Downloading: $LATEST_URL" && \
    wget -q "$LATEST_URL" -O sub2api.tar.gz && \
    tar -xzf sub2api.tar.gz && \
    rm -f sub2api.tar.gz && \
    chmod +x /app/sub2api

# Copy config template
COPY config.yaml /app/config.template.yaml

# Startup script: substitute env vars then launch
RUN printf '#!/bin/bash\nenvsubst < /app/config.template.yaml > /app/config.yaml\nexec /app/sub2api\n' > /app/start.sh && \
    chmod +x /app/start.sh

EXPOSE 7860

CMD ["/app/start.sh"]