# Development Dockerfile
# Uses Rust 1.93+ to support Edition 2024 dependencies
FROM rust:1.93-slim

WORKDIR /app

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

# Copy Cargo files first for better caching
COPY Cargo.toml ./

# Create dummy main.rs for dependency caching
RUN mkdir src && echo 'fn main() {}' > src/main.rs

# Build dependencies (this layer will be cached)
RUN cargo build && rm -rf src

# Copy actual source code
COPY src ./src

# Expose port
EXPOSE 8000

# Run the application with unbuffered output
# PYTHONUNBUFFERED=1 and stdio -u flag for Python compatibility
# RUST_BACKTRACE=1 for better error messages
CMD ["sh", "-c", "RUST_BACKTRACE=1 cargo run"]