# syntax=docker/dockerfile:1
# =============================================================================
# logcorrelator - Dockerfile de packaging unifié (DEB + RPM avec fpm)
# =============================================================================

# =============================================================================
# Stage 1: Builder - Compilation du binaire Go
# =============================================================================
FROM golang:1.21 AS builder

WORKDIR /build

# Install dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    && rm -rf /var/lib/apt/lists/*

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

# Copy source code
COPY . .

# Build binary for Linux
ARG VERSION=1.0.0
RUN mkdir -p dist && \
    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
    go build -ldflags="-w -s" \
    -o dist/logcorrelator \
    ./cmd/logcorrelator

# =============================================================================
# Stage 2: Package builder - fpm pour DEB et RPM
# =============================================================================
FROM ruby:3.2-bookworm AS package-builder

WORKDIR /package

# Install fpm and dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    rpm \
    dpkg-dev \
    fakeroot \
    && rm -rf /var/lib/apt/lists/* \
    && gem install fpm -v 1.16.0

# Copy binary from builder
COPY --from=builder /build/dist/logcorrelator /tmp/pkgroot/usr/bin/logcorrelator
COPY --from=builder /build/config.example.yml /tmp/pkgroot/etc/logcorrelator/logcorrelator.yml
COPY --from=builder /build/config.example.yml /tmp/pkgroot/usr/share/logcorrelator/logcorrelator.yml.example

# Create directories and set permissions
RUN mkdir -p /tmp/pkgroot/var/log/logcorrelator && \
    mkdir -p /tmp/pkgroot/var/run/logcorrelator && \
    chmod 755 /tmp/pkgroot/usr/bin/logcorrelator && \
    chmod 640 /tmp/pkgroot/etc/logcorrelator/logcorrelator.yml && \
    chmod 640 /tmp/pkgroot/usr/share/logcorrelator/logcorrelator.yml.example && \
    chmod 755 /tmp/pkgroot/var/log/logcorrelator && \
    chmod 755 /tmp/pkgroot/var/run/logcorrelator

# Copy maintainer scripts
COPY packaging/deb/postinst /tmp/scripts/postinst
COPY packaging/deb/prerm /tmp/scripts/prerm
COPY packaging/deb/postrm /tmp/scripts/postrm
RUN chmod 755 /tmp/scripts/*

# Build DEB package
ARG VERSION=1.0.0
ARG ARCH=amd64
RUN mkdir -p /packages/deb && \
    fpm -s dir -t deb \
    -n logcorrelator \
    -v "${VERSION}" \
    -C /tmp/pkgroot \
    --architecture "${ARCH}" \
    --description "Log correlation service for HTTP and network events" \
    --url "https://github.com/logcorrelator/logcorrelator" \
    --license "MIT" \
    --vendor "logcorrelator <dev@example.com>" \
    --maintainer "logcorrelator <dev@example.com>" \
    --depends "systemd" \
    --after-install /tmp/scripts/postinst \
    --before-remove /tmp/scripts/prerm \
    --after-remove /tmp/scripts/postrm \
    -p /packages/deb/logcorrelator_${VERSION}_${ARCH}.deb \
    usr/bin/logcorrelator \
    etc/logcorrelator/logcorrelator.yml \
    usr/share/logcorrelator/logcorrelator.yml.example \
    var/log/logcorrelator \
    var/run/logcorrelator

# Build RPM package
ARG DIST=el8
RUN mkdir -p /packages/rpm && \
    fpm -s dir -t rpm \
    -n logcorrelator \
    -v "${VERSION}" \
    -C /tmp/pkgroot \
    --architecture "x86_64" \
    --description "Log correlation service for HTTP and network events" \
    --url "https://github.com/logcorrelator/logcorrelator" \
    --license "MIT" \
    --vendor "logcorrelator <dev@example.com>" \
    --depends "systemd" \
    --after-install /tmp/scripts/postinst \
    --before-remove /tmp/scripts/prerm \
    --after-remove /tmp/scripts/postrm \
    -p /packages/rpm/logcorrelator-${VERSION}-1.x86_64.rpm \
    usr/bin/logcorrelator \
    etc/logcorrelator/logcorrelator.yml \
    usr/share/logcorrelator/logcorrelator.yml.example \
    var/log/logcorrelator \
    var/run/logcorrelator

# =============================================================================
# Stage 3: Output - Image finale avec les packages
# =============================================================================
FROM alpine:latest AS output

WORKDIR /packages
COPY --from=package-builder /packages/deb/*.deb /packages/deb/
COPY --from=package-builder /packages/rpm/*.rpm /packages/rpm/

CMD ["sh", "-c", "echo '=== DEB Packages ===' && ls -la /packages/deb/ && echo '' && echo '=== RPM Packages ===' && ls -la /packages/rpm/"]