#!/bin/bash

# Function to install Docker
install_docker() {
    echo -n "Docker is not installed. Do you want to install Docker? (y/n): "
    read answer
    
    if [ "$answer" != "${answer#[Yy]}" ]; then
        echo "Installing Docker..."
        curl -fsSL https://get.docker.com -o get-docker.sh  > /dev/null 2>&1
        sudo sh get-docker.sh  > /dev/null 2>&1
        rm get-docker.sh  > /dev/null 2>&1
        
        # Add current user to docker group
        sudo usermod -aG docker $USER

        #newgrp docker

        echo "Docker has been installed successfully!"
    else
        echo "Docker installation skipped. Please install Docker manually to use this script."
        exit 1
    fi
}


check_container_running() {
    docker ps --format '{{.Names}}' | grep -q "^$1$"
    return $?
}

create_docker_compose() {
    export DOMAIN=$1
    export MYSQL_ROOT_PASSWORD=$2
    export MYSQL_PASSWORD=$3

    envsubst < "${SCRIPT_DIR}/templates/docker-compose.yml.template" > compose.yaml
    #envsubst '$DOMAIN $MYSQL_ROOT_PASSWORD $MYSQL_PASSWORD' < "${SCRIPT_DIR}/templates/docker-compose.yml.template" > compose.yaml

}

start_services() {
    local FIRST_TIME=$1
    local DOMAIN=$2

    if [ "$FIRST_TIME" = true ]; then
        echo "Starting Caddy server..."
        cd "${CADDY_DIR}"
        docker compose up -d
        if [ $? -ne 0 ]; then
            echo -e "${RED}Failed to start Caddy server${NC}"
            return 1
        fi
    else
        # Check if Caddy is running and reload configuration
        if check_container_running "caddy"; then
            reload_caddy
        else
            echo -e "${RED}Caddy is not running. Please start it first${NC}"
            return 1
        fi
    fi

    echo "Starting WordPress for ${DOMAIN}..."
    cd "${WORDPRESS_DIR}/${DOMAIN}"
    docker compose up -d
    if [ $? -ne 0 ]; then
        echo -e "${RED}Failed to start WordPress services${NC}"
        return 1
    fi

    return 0
}

get_containers_status() {
    local compose_file="$1"
    local containers=()
    local count=0
    
    while IFS= read -r container; do
        # Skip if empty line
        [ -z "$container" ] && continue
        containers+=("$container")
        ((count++))
    done < <(docker compose -f "$compose_file" ps --status running --format '{{.Name}}')
    
    if [ $count -eq 0 ]; then
        echo "Status: No container is running"
    else
        echo -n "Status: $count containers are running: "
        printf "%s" "${containers[0]}"
        for ((i=1; i<${#containers[@]}; i++)); do
            printf " and %s" "${containers[$i]}"
        done
        echo
    fi
}