#!/usr/bin/env sh

set -e

# Build the blog with mdbook before deploying
printf "Building blog with mdbook...\n"
[ -s src ] || ln -s /var/lib/www src
mdbook build

# Usage information
usage() {
    printf "Usage: %s [staging|prod]\n\n  staging - Deploy to local staging environment (/srv/www/stage.binning.net)\n  prod    - Deploy to production server via SSH (www.binning.net)\n\nExample:\n  %s staging\n  %s prod\n" "$0" "$0" "$0"
    exit 1
}

# Check if argument provided
if [ $# -eq 0 ]; then
    printf "Error: No environment specified\n"
    usage
fi

ENV=$1

case $ENV in
    staging)
        printf "Deploying to STAGING environment...\n"
        
        STAGING_PATH="/srv/www/stage.binning.net"
        
        # Create staging directory if it doesn't exist
        sudo mkdir -p ${STAGING_PATH}
        
        # Deploy website files via rsync
        printf "Deploying website files...\n"
        sudo rsync -av --delete main/* ${STAGING_PATH}/
        sudo rsync -av --delete blog ${STAGING_PATH}/
        
        # Set proper ownership
        sudo chown -R nginx:nginx ${STAGING_PATH}/

        printf "✓ Staging deployment complete!\n  Files deployed to: %s\n\nTo activate nginx, import staging.nginx.nix into your local NixOS config\nand run: sudo nixos-rebuild switch\n" "${STAGING_PATH}"
        ;;
        
    prod)
        printf "Deploying to PRODUCTION environment...\n"
        
        # SSH details
        REMOTE_HOST="crossbox"
        REMOTE_USER="m3b"
        REMOTE_PATH="/srv/www/binning.net"
        
        # Check if SSH key is set up
        if ! ssh -o BatchMode=yes -o ConnectTimeout=5 ${REMOTE_USER}@${REMOTE_HOST} exit 2>/dev/null; then
            printf "Warning: SSH connection test failed. Ensure SSH keys are configured.\nYou may be prompted for a password.\n"
        fi
        
        # Deploy website files via rsync over SSH
        # Using just the host from SSH config without user@ prefix
        printf "Deploying website files...\n"
        ssh ${REMOTE_HOST} "mkdir -p /tmp/${REMOTE_PATH}"
        rsync -avz --delete ${DEPLOY_FILES} ${REMOTE_HOST}:/tmp/${REMOTE_PATH}/
        # Set proper permissions and move config on remote server
        ssh ${REMOTE_HOST} "sudo rsync -avz --delete /tmp/${REMOTE_PATH}/ ${REMOTE_PATH} && \
            sudo chown -R nginx:nginx ${REMOTE_PATH}/ && \
            printf 'Content deployed.\n'"

        printf "✓ Production deployment complete!\n\nNginx configuration is managed by the nixos-config flake (hosts/crossbox/nginx.nix).\n" "${REMOTE_HOST}"
        ;;
        
    *)
        printf "Error: Invalid environment '%s'\n" "$ENV"
        usage
        ;;
esac