FROM golang:1.25-alpine AS builder

WORKDIR /app
COPY src/ ./src/

# Initialize Go module if not present
RUN go mod init playout || true
RUN go mod tidy

RUN CGO_ENABLED=0 GOOS=linux go build -o /playlist-manager ./src/playlist.go

FROM alpine:3.20

# Install FFmpeg, curl for health checks, and basic tools
RUN apk add --no-cache \
    ffmpeg \
    curl \
    bash
# Set working directory for playout
WORKDIR /app
# Copy the playout start script and the built playlist manager binary
COPY start-playout.sh /app/
# Copy demo data for out-of-the-box playout
COPY demodata/ /app/
# Copy the built playlist manager binary from the builder stage
COPY --from=builder /playlist-manager /app/playlist-manager
# Create directories for playlist, media, and HLS output
RUN mkdir -p /app/hls
RUN chmod +x /app/start-playout.sh /app/playlist-manager
# Expose HLS directory (will be served by nginx)
VOLUME ["/app/hls"]
# Default command runs the playout loop (which calls the Go validator)
CMD ["./start-playout.sh"]