#!/usr/bin/env bash
# deployment-node.sh - To be run on the execution node (SOLARIA, PIHA, VPS)
# This script pulls the latest changes and ensures services are running.

set -e

# Configuration
REPO_PATH="${HOME}/homelab-codex-ws"
RUNTIME_PATH="/opt/homelab"
HOSTNAME=$(hostname | tr '[:lower:]' '[:upper:]')

echo "--- Starting Deployment on ${HOSTNAME} ---"

# 1. Update Repository
if [ ! -d "$REPO_PATH" ]; then
    echo "Error: Repository not found at $REPO_PATH"
    exit 1
fi

cd "$REPO_PATH"
echo "Pulling latest changes..."
git pull

# 2. Identify Services
# Based on our convention, we look for services assigned to this host
# For now, we'll check if a 'services.txt' exists in the host folder
SERVICE_LIST="${REPO_PATH}/hosts/$(hostname | tr '[:upper:]' '[:lower:]')/services.txt"

if [ ! -f "$SERVICE_LIST" ]; then
    echo "No services.txt found for ${HOSTNAME}. Skipping service deployment."
    exit 0
fi

# 3. Deploy Services
while IFS= read -r service || [ -n "$service" ]; do
    [[ "$service" =~ ^#.*$ ]] && continue # Skip comments
    [[ -z "$service" ]] && continue      # Skip empty lines

    echo "Deploying service: ${service}..."
    
    COMPOSE_FILE="${REPO_PATH}/services/${service}/docker-compose.yml"
    
    if [ ! -f "$COMPOSE_FILE" ]; then
        echo "Warning: Compose file not found for ${service} at ${COMPOSE_FILE}"
        continue
    fi

    # Target directory in runtime
    TARGET_DIR="${RUNTIME_PATH}/services/${service}"
    mkdir -p "$TARGET_DIR"

    # We use the compose file from the repo directly
    # but we can also handle overrides here
    OVERRIDE_FILE="${RUNTIME_PATH}/config/${service}/docker-compose.override.yml"
    
    COMPOSE_CMD="docker compose -f ${COMPOSE_FILE}"
    if [ -f "$OVERRIDE_FILE" ]; then
        echo "Using override file for ${service}"
        COMPOSE_CMD="${COMPOSE_CMD} -f ${OVERRIDE_FILE}"
    fi

    $COMPOSE_CMD up -d --remove-orphans

done < "$SERVICE_LIST"

echo "--- Deployment Complete ---"