# =============================================================================
# FOXHUNT BACKTESTING SERVICE - CLOUD-NATIVE PRODUCTION CONTAINER
# =============================================================================
# This Dockerfile creates a balanced performance container for the Backtesting Service
# optimized for cloud-native deployment with service mesh compatibility

# =============================================================================
# BUILDER STAGE - Optimized Build
# =============================================================================
FROM rust:1.75-slim as backtesting-builder

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

# Production Cargo configuration
ENV CARGO_NET_GIT_FETCH_WITH_CLI=true
ENV CARGO_INCREMENTAL=0
ENV CARGO_PROFILE_RELEASE_LTO=true
ENV CARGO_PROFILE_RELEASE_CODEGEN_UNITS=1
ENV CARGO_PROFILE_RELEASE_OPT_LEVEL=3
ENV CARGO_PROFILE_RELEASE_DEBUG=false
ENV CARGO_PROFILE_RELEASE_STRIP=true

WORKDIR /workspace

# Copy workspace files for backtesting
COPY Cargo.toml Cargo.lock ./
COPY trading_engine ./trading_engine
COPY risk ./risk
COPY ml ./ml
COPY data ./data
COPY common ./common
COPY storage ./storage
COPY backtesting ./backtesting
COPY adaptive-strategy ./adaptive-strategy
COPY crates/config ./crates/config
COPY crates/model_loader ./crates/model_loader
COPY services/backtesting_service ./services/backtesting_service

# Build backtesting service with production optimizations
RUN cargo build \
    --release \
    --package backtesting_service \
    --features standalone

# =============================================================================
# CLOUD-NATIVE RUNTIME - Ubuntu Slim with Service Mesh Support
# =============================================================================
FROM ubuntu:22.04-slim

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    ca-certificates \
    libssl3 \
    libpq5 \
    curl \
    wget \
    # Service mesh compatibility
    iptables \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# Create app user and directories
RUN groupadd -r foxhunt && useradd -r -g foxhunt foxhunt
RUN mkdir -p /app/config /app/data /app/backtests /app/reports /app/logs \
    && chown -R foxhunt:foxhunt /app

# Copy binary from builder
COPY --from=backtesting-builder /workspace/target/release/backtesting_service /app/backtesting_service
RUN chmod +x /app/backtesting_service

# Copy configuration templates
COPY services/backtesting_service/config/ /app/config/ || true

# Switch to app user
USER foxhunt
WORKDIR /app

# Expose gRPC and health check ports
EXPOSE 50052 8082

# Resource limits for cloud deployment
ENV RUST_LOG=info
ENV RUST_BACKTRACE=0
ENV FOXHUNT_CONFIG=/app/config/production.toml

# Health check for Kubernetes
HEALTHCHECK --interval=30s --timeout=10s --start-period=45s --retries=3 \
    CMD curl -f http://localhost:8082/health || exit 1

# Graceful shutdown support
STOPSIGNAL SIGTERM

# Entry point with proper signal handling
CMD ["./backtesting_service"]