using DbusSmsForward.Helper;
using DbusSmsForward.Models;

namespace DbusSmsForward.Services;

public static class CommandLineParser
{
    public static AppCommand Parse(string[] args)
    {
        if (args.Length == 0)
        {
            return new AppCommand { Name = "run" };
        }

        List<string> enabledChannels = [];
        string commandName = "run";
        string phoneNumber = string.Empty;
        string message = string.Empty;
        bool validateConfig = false;
        bool printSampleConfig = false;

        for (int i = 0; i < args.Length; i++)
        {
            string arg = args[i];
            switch (arg)
            {
                case "run":
                case "send":
                case "validate-config":
                case "print-sample-config":
                    commandName = arg;
                    break;
                case "--to":
                    if (i + 1 < args.Length) phoneNumber = args[++i];
                    break;
                case "--text":
                    if (i + 1 < args.Length) message = args[++i];
                    break;
                case "-fE":
                    commandName = "run";
                    enabledChannels.Add("email");
                    break;
                case "-fP":
                    commandName = "run";
                    enabledChannels.Add("pushplus");
                    break;
                case "-fW":
                    commandName = "run";
                    enabledChannels.Add("wecom");
                    break;
                case "-fT":
                    commandName = "run";
                    enabledChannels.Add("telegram");
                    break;
                case "-fD":
                    commandName = "run";
                    enabledChannels.Add("dingtalk");
                    break;
                case "-fB":
                    commandName = "run";
                    enabledChannels.Add("bark");
                    break;
                case "-fS":
                    commandName = "run";
                    enabledChannels.Add("shell");
                    break;
                case "-fA":
                    commandName = "run";
                    enabledChannels.Add("autmanpush");
                    break;
                case "-sS":
                    commandName = "send";
                    break;
                case "--validate-config":
                    validateConfig = true;
                    break;
                case "--print-sample-config":
                    printSampleConfig = true;
                    break;
            }
        }

        return new AppCommand
        {
            Name = commandName,
            PhoneNumber = phoneNumber,
            Message = message,
            EnabledChannels = enabledChannels.Distinct(StringComparer.OrdinalIgnoreCase).ToArray(),
            ValidateConfig = validateConfig || commandName == "validate-config",
            PrintSampleConfig = printSampleConfig || commandName == "print-sample-config"
        };
    }
}