# Migration Engine - Database Migration Tool
# Multi-stage build to compile with CGO support

# Build stage
# Let buildx handle platform automatically
FROM golang:1.25-alpine AS builder

# Get build platform from buildx
ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH

# Install build dependencies for CGO
RUN apk add --no-cache \
    gcc \
    g++ \
    musl-dev \
    sqlite-dev \
    git

WORKDIR /build

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

# Copy source code
COPY . .

# Build with CGO enabled
ARG TARGETOS
ARG TARGETARCH
ARG VERSION=dev
ARG GIT_COMMIT=unknown
ARG BUILD_TIME=unknown

RUN CGO_ENABLED=1 GOOS=$TARGETOS GOARCH=$TARGETARCH \
    go build -ldflags="-s -w \
    -X main.Version=${VERSION} \
    -X main.GitCommit=${GIT_COMMIT} \
    -X main.BuildTime=${BUILD_TIME}" \
    -o migrate ./cmd/migrate

# Runtime stage
FROM alpine:latest

# Install runtime dependencies (including CGO/SQLite dependencies)
RUN apk add --no-cache \
    ca-certificates \
    postgresql-client \
    mysql-client \
    busybox-extras \
    sqlite-libs \
    musl \
    && update-ca-certificates

# Create non-root user
RUN addgroup -g 1000 gohoarder && \
    adduser -D -u 1000 -G gohoarder gohoarder

# Copy binary from builder
COPY --from=builder /build/migrate /usr/local/bin/migrate
RUN chmod +x /usr/local/bin/migrate

WORKDIR /app
USER gohoarder

# Run migrations
ENTRYPOINT ["/usr/local/bin/migrate"]
CMD ["--action=migrate"]