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

WORKDIR /app

COPY --from=builder /playlist-manager /app/playlist-manager
COPY start-playout.sh /app/
COPY *.sh /app/

RUN chmod +x /app/*.sh /app/playlist-manager

# Create directories for playlist, media, and HLS output
RUN mkdir -p /app/playlist /app/media /app/hls

# Copy demo media and playlist for out-of-the-box playout
COPY demo-data/media/ /app/media/
COPY demo-data/playlist/playlist.txt /app/playlist/playlist.txt

# 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"]