# 1. Build Stage
FROM rust:1.90 as builder

WORKDIR /usr/src/app

# Pre-build dependencies to leverage Docker layer caching
COPY ./services/common-contracts /usr/src/app/services/common-contracts
COPY ./services/api-gateway/Cargo.toml ./services/api-gateway/Cargo.lock* ./services/api-gateway/

WORKDIR /usr/src/app/services/api-gateway
RUN mkdir -p src && \
    echo "fn main() {}" > src/main.rs && \
    cargo build --release --bin api-gateway

# Copy the full source code
COPY ./services/api-gateway /usr/src/app/services/api-gateway

# Build the application
WORKDIR /usr/src/app/services/api-gateway
RUN cargo build --release --bin api-gateway

# 2. Runtime Stage
FROM debian:bookworm-slim

# Set timezone
ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
RUN apt-get update && apt-get install -y --no-install-recommends ca-certificates libssl3 && rm -rf /var/lib/apt/lists/*

# Copy the built binary from the builder stage
COPY --from=builder /usr/src/app/services/api-gateway/target/release/api-gateway /usr/local/bin/

# Set the binary as the entrypoint
ENTRYPOINT ["/usr/local/bin/api-gateway"]