# -------- Dockerfile (Multi-Stage Build) --------
# 1. Builder-Stage
FROM golang:1.25-alpine AS builder

WORKDIR /app
COPY go.* ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /bin/vcc

# 2. Runtime-Stage
FROM alpine:3.22

# HTTPS-Callouts in Alpine brauchen ca-certificates
RUN apk add --no-cache ca-certificates
RUN mkdir /web
COPY --from=builder /bin/vcc /bin/vcc
COPY ./web /bin/web
# Default listens on :8090 – siehe main.go
EXPOSE 8080

# Environment defaults; können per compose überschrieben werden
ENV CLIPBOARD_TOKEN="" \
CLIPBOARD_DATA="" \
PORT=":8080" \
MAX_PER_ROOM=200
    
ENTRYPOINT ["/bin/vcc"]