# Synor Testnet Faucet Dockerfile
# Multi-stage build for minimal production image

# =============================================================================
# Stage 1: Build Environment
# =============================================================================
FROM rust:1.85-bookworm AS builder

# Install build dependencies
RUN apt-get update && apt-get install -y \
    cmake \
    clang \
    libclang-dev \
    pkg-config \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

# Create app directory
WORKDIR /app

# Copy manifests first (for better caching)
COPY Cargo.toml Cargo.lock ./
COPY crates/ crates/
COPY apps/ apps/

# Build release binary
RUN cargo build --release --bin synor-faucet

# =============================================================================
# Stage 2: Runtime Environment
# =============================================================================
FROM debian:bookworm-slim AS runtime

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    ca-certificates \
    libssl3 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user for security
RUN useradd --create-home --shell /bin/bash faucet

# Copy binary from builder
COPY --from=builder /app/target/release/synor-faucet /usr/local/bin/synor-faucet

# Switch to non-root user
USER faucet

# Set working directory
WORKDIR /home/faucet

# Expose HTTP port
EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
    CMD curl -f http://localhost:8080/health || exit 1

# Environment variables with defaults
ENV SYNOR_RPC_URL=http://localhost:17110
ENV FAUCET_AMOUNT=1000000000
ENV FAUCET_COOLDOWN=3600
ENV FAUCET_LISTEN_ADDR=0.0.0.0:8080
ENV RUST_LOG=info

# Default command
ENTRYPOINT ["synor-faucet"]
