# Multi-stage build for LX multi-node
FROM golang:1.26.5-alpine AS builder

# The golang images set GOTOOLCHAIN=local, which turns a go.mod `go` directive
# newer than this base into a hard build failure. `auto` lets go fetch the
# required toolchain (checksum-verified via sum.golang.org) instead.
ENV GOTOOLCHAIN=auto

# Install build dependencies
RUN apk add --no-cache \
    gcc \
    g++ \
    make \
    git \
    zeromq-dev \
    pkgconfig

# Set working directory
WORKDIR /build

# Copy go mod files
COPY backend/go.mod backend/go.sum ./
RUN go mod download

# Copy source code
COPY backend/ ./

# Build multi-node binary
RUN CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo -o multi-node ./cmd/multi-node/main.go

# Build test client
RUN CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo -o test-client ./cmd/multi-node/client.go

# Final stage
FROM alpine:latest

# Install runtime dependencies
RUN apk add --no-cache \
    zeromq \
    ca-certificates

# Create app directory
WORKDIR /app

# Copy binaries from builder
COPY --from=builder /build/multi-node /app/
COPY --from=builder /build/test-client /app/

# Create logs directory
RUN mkdir -p /app/logs

# Expose ports
# PUB, SUB, ROUTER, DEALER
EXPOSE 5000 5001 5002 5003
EXPOSE 5100 5101 5102 5103
EXPOSE 5200 5201 5202 5203

# Default command
CMD ["/app/multi-node"]