FROM golang:1.22-alpine AS builder

# Install build dependencies
RUN apk add --no-cache git

# Set working directory
WORKDIR /app

# Copy go mod and sum files
COPY go.mod go.sum ./

# Download dependencies
RUN go mod download

# Copy source code
COPY *.go ./

# Build the application
RUN CGO_ENABLED=0 GOOS=linux go build -o discord-europa-fm

# Use a smaller base image for the final stage
FROM alpine:latest

# Install ffmpeg
RUN apk add --no-cache ffmpeg ca-certificates

# Copy the built executable
WORKDIR /app
COPY --from=builder /app/discord-europa-fm .

# Environment variables
ENV DISCORD_TOKEN="" \
    DEBUG="" \
    GUILD_ID=""

# Run the bot
CMD if [ -n "$DEBUG" ] && [ -n "$GUILD_ID" ]; then \
      ./discord-europa-fm -debug -guild "$GUILD_ID"; \
    elif [ -n "$DEBUG" ]; then \
      ./discord-europa-fm -debug; \
    elif [ -n "$GUILD_ID" ]; then \
      ./discord-europa-fm -guild "$GUILD_ID"; \
    else \
      ./discord-europa-fm; \
    fi