#include "version.hpp"
#include "config.hpp"
#include "services.hpp"
#include "servers.hpp"
#include "utils/directories.hpp"
#include "templates.hpp"
#include "utils/utils.hpp"
#include "autocomplete.hpp"
#include "utils/hash.hpp"
#include "command_registry.hpp"
#include "output.hpp"

#include <filesystem>
#include <iostream>
#include <string>
#include <vector>
#include <iomanip>
#include <chrono>
#include <libassert/assert.hpp>
#include <sstream>
#include <algorithm>
namespace dropshell {

extern const std::string VERSION;
extern const std::string RELEASE_DATE;
extern const std::string AUTHOR;
extern const std::string LICENSE;


int main(int argc, char* argv[]) {

    try {
        // silently attempt to load the config file and templates.
        gConfig().load_config();
        if (gConfig().is_config_set())
            gTemplateManager().load_sources();


        // process the command line arguments.
        std::vector<std::string> args(argv, argv + argc);

        if (args.size() < 2) 
            args.push_back("help");
        ASSERT(args.size() > 1, "No command provided, logic error.");

        CommandContext ctx{args[0], args[1], std::vector<std::string>(args.begin() + 2, args.end())};

        if (ctx.command == "autocomplete") {
            CommandRegistry::instance().autocomplete(ctx);
            return 0;
        }

        const CommandInfo* cmdinfo = CommandRegistry::instance().find_command(ctx.command);
        if (!cmdinfo) {
            error << "Unknown command: " << ctx.command << std::endl;
            return 1;
        }
        if (cmdinfo->requires_config && !gConfig().is_config_set()) {
            error << "Valid dropshell configuration required for command: " << ctx.command << std::endl;
            info << "Please run 'dropshell edit' to set up the dropshell configuration." << std::endl;
            return 1;
        }
        if (cmdinfo->requires_install && !gConfig().is_agent_installed()) {
            error << "Dropshell agent not installed for command: " << ctx.command << std::endl;
            info << "Please run 'dropshell install' to install the local dropshell agent." << std::endl;
            return 1;
        }

        int arg_count = ctx.args.size();
        if (arg_count < cmdinfo->min_args || (cmdinfo->max_args != -1 && arg_count > cmdinfo->max_args)) {
            error << "Invalid number of arguments for command: " << ctx.command << std::endl;
            debug << "(" << ctx.args.size() << " args provided, " << ctx.command << " requires " << (cmdinfo->min_args) << " to " << (cmdinfo->max_args) << " args)" << std::endl;
            info << "Usage: " << std::endl;
            info << "  ";
            info << left_align(cmdinfo->help_usage,30);
            info << cmdinfo->help_description << std::endl;
            return 1;
        }
        return cmdinfo->handler(ctx);

    }
    catch (const std::exception& e) {
        error << "Uncaught Exception: " << e.what() << std::endl;
        return 1;
    }
}











// ------------------------------------------------------------------------------------------------

struct ServerAndServices {
    std::string server_name;
    std::vector<LocalServiceInfo> servicelist;
};

bool getCLIServices(const std::string & arg2, const std::string & arg3, 
    ServerAndServices & server_and_services)
{
    if (arg2.empty()) return false;
    server_and_services.server_name = arg2;

    if (arg3.empty()) {
        server_and_services.servicelist = get_server_services_info(arg2);
    } else {
        server_and_services.servicelist.push_back(get_service_info(arg2, arg3));
    }
    return true;
}

auto command_match = [](const std::string& cmd_list, int argc, char* argv[]) -> bool {
    std::istringstream iss(cmd_list);
    std::string cmd_item;
    while (iss >> cmd_item) {
        if (cmd_item == safearg(argc, argv, 1)) {
            return true;
        }
    }
    return false;
};

#define BOOLEXIT(CMD_LIST, RUNCMD) { \
    if (command_match(CMD_LIST, argc, argv)) { \
        return (RUNCMD) ? 0 : 1; \
    } \
}

#define HAPPYEXIT(CMD_LIST, RUNCMD) { \
    if (command_match(CMD_LIST, argc, argv)) { \
        RUNCMD; \
        return 0; \
    } \
}

} // namespace dropshell

int main(int argc, char* argv[]) {
    return dropshell::main(argc, argv);
}