# Testnet Dockerfile for XDC Network (Apothem)
FROM golang:1.21-alpine AS builder

# Install build dependencies
RUN apk add --no-cache \
    build-base \
    linux-headers \
    git

# Set working directory
WORKDIR /go/src/github.com/ethereum/go-ethereum

# Copy go mod files first for caching
COPY go.mod go.sum ./
RUN go mod download

# Copy source code
COPY . .

# Build optimized binary
RUN go build -ldflags "-s -w" -o /usr/local/bin/XDC ./cmd/geth

# Final lightweight image
FROM alpine:3.19

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

# Copy binary
COPY --from=builder /usr/local/bin/XDC /usr/local/bin/XDC

# Copy testnet genesis
COPY genesis/xdc_apothem.json /etc/xdc/genesis.json

# Create data directory and user
RUN addgroup -g 1000 xdc && \
    adduser -u 1000 -G xdc -s /bin/sh -D xdc && \
    mkdir -p /data/xdc && \
    chown -R xdc:xdc /data/xdc

USER xdc

# Set environment variables
ENV DATADIR=/data/xdc
ENV NETWORK=testnet

# Expose ports
EXPOSE 30303/tcp 30303/udp 8545 8546

# Volume for data persistence
VOLUME ["/data/xdc"]

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -sf http://localhost:8545 -X POST -H "Content-Type: application/json" \
    --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' || exit 1

# Entrypoint
ENTRYPOINT ["/usr/local/bin/XDC"]

# Default command - testnet configuration
CMD ["--datadir", "/data/xdc", \
     "--networkid", "51", \
     "--http", "--http.addr", "0.0.0.0", "--http.port", "8545", \
     "--http.api", "eth,net,web3,xdpos", \
     "--http.corsdomain", "*", \
     "--ws", "--ws.addr", "0.0.0.0", "--ws.port", "8546", \
     "--ws.api", "eth,net,web3", \
     "--syncmode", "fast", \
     "--bootnodes", "enode://testnet-bootnode-placeholder@apothem-bootnode:30303"]