// server_service.hpp
//
// manage a service on a server
//

#include <string>
#include <vector>
#include <memory>
#include "server_env.hpp"
#include "services.hpp"

namespace dropshell {

class service_runner {
    public:
        service_runner();
        bool init(const std::string& server_name, const std::string& service_name);

        // install the service over ssh, using the credentials from server.env (via server_env.hpp), by:
        // 1. check if the server_name exists, and the service_name refers to a valid template
        // 2. check if service_name is valid for the server_name
        // 3. create the service directory on the server at {DROPSHELL_DIR}/{service_name}
        // 3. copy the template files into that service directory/template (from the templates directory for the specified server, using templates.hpp to identify the path)
        // 4. copying the {service_name}.env file to the service directory (from the server directory for the specified server)
        // 5. running the install.sh script on the server, passing the {service_name}.env file as an argument
        bool install(); 
        
        // run a command over ssh, using the credentials from server.env (via server_env.hpp)
        // first check that the command corresponds to a valid .sh file in the service directory
        // then run the command, passing the {service_name}.env file as an argument
        // do a lot of checks, such as:
        // checking that we can ssh to the server.
        // checking whether the service directory exists on the server.
        // checking that the command exists in the service directory.
        // checking that the command is a valid .sh file.
        // checking that the {service_name}.env file exists in the service directory.
        bool run_command(const std::string& command);

        // backup the service over ssh, using the credentials from server.env (via server_env.hpp)
        // 1. run backup.sh on the server
        // 2. create a backup file with format server-service-datetime.tgz
        // 3. store it in the server's DROPSHELL_DIR/backups folder
        // 4. copy it to the local user_dir/backups folder
        bool backup();


        // check health of service. Silent.
        // 1. run status.sh on the server
        // 2. return the output of the status.sh script
        bool is_healthy();

        // get the ports of the service
        // 1. run _ports.sh on the server
        // 2. return the output of the _ports.sh script, handling a port per line or comma separated.
        std::vector<int> get_ports();

        std::string healthtick();

    private:
        std::string m_server_name;
        ServiceInfo m_service_info;
        std::unique_ptr<server_env> m_server_env;

        std::string mRemote_service_path;
        std::string mRemote_service_config_path;
        std::string mRemote_service_template_path;
        std::string mRemote_service_env_file;

        // Helper methods
        std::string construct_ssh_cmd() const;
        bool check_remote_dir_exists(const std::string& ssh_cmd, const std::string& dir_path) const;
        bool check_remote_file_exists(const std::string& ssh_cmd, const std::string& file_path) const;
        bool execute_ssh_command(const std::string& command, const std::string& error_msg) const;
        bool execute_local_command(const std::string& command, const std::string& error_msg) const;
        void maketitle(const std::string& title) const;
};

} // namespace dropshell