# Stage 1: Build the Rust application using the official Rust image
FROM rust:bullseye AS builder

# Install required dependencies for cargo-lambda and Zig (if needed)
RUN apt-get update && apt-get install -y \
    curl \
    build-essential \
    gcc \
    libc-dev \
    pkg-config \
    libssl-dev \
    gcc-aarch64-linux-gnu \
    && rm -rf /var/lib/apt/lists/*

# Install Zig (only if needed for cross-compiling or complex setups)
RUN curl -sSf https://ziglang.org/builds/zig-linux-x86_64-0.15.0-dev.377+f01833e03.tar.xz | tar -xJf - -C /usr/local/bin --strip-components=1

RUN rustup target add aarch64-unknown-linux-gnu
# Install cargo-lambda via cargo for building AWS Lambda-compatible binaries
RUN cargo install cargo-lambda

# Create a working directory for the project
WORKDIR /app

# Copy the entire Rust project into the container
COPY . .

# Build the Rust application with cargo-lambda, targeting Lambda-compatible format
RUN cargo lambda build --release --bin lambda-post-article --arm64

# Copy the Lambda-compatible binary from the build stage into the Lambda runtime directory
RUN cd target/lambda/lambda-post-article && zip function.zip bootstrap

# Stage 2: Extract just the zip artifact
FROM alpine:latest AS artifact

# Copy only the zip file out of the builder
COPY --from=builder /app/target/lambda/lambda-post-article/function.zip /function.zip