using System.IO;

namespace HybridCLR.Editor.Installer
{
    public partial class InstallerController
    {
        private string _hybridclrLocalVersion;

        public string HybridclrLocalVersion => _hybridclrLocalVersion ??= GetHybridCLRLocalVersion();

        private string GetHybridCLRLocalVersion()
        {
            string workDir = SettingsUtil.HybridCLRDataDir;
            string hybridclrRepoDir = $"{workDir}/{hybridclr_repo_path}";
            if (Directory.Exists(hybridclrRepoDir))
            {
                var ret = BashUtil.RunCommand2(hybridclrRepoDir, "git",
                    new string[] { "log", "HEAD", "-n", "1", "--pretty=format:\"%H\"", },
                    false);
                if (ret.ExitCode == 0)
                {
                    return ret.StdOut.Trim();
                }
                else
                {
                    return "ERROR";
                }
            }
            return "";
        }

        private string _il2cppPlusLocalVersion;

        public string Il2cppPlusLocalVersion => _il2cppPlusLocalVersion ??= GetIl2cppPlusLocalVersion();

        private string GetIl2cppPlusLocalVersion()
        {
            string workDir = SettingsUtil.HybridCLRDataDir;
            string il2cppPlusRepoDir = $"{workDir}/{il2cpp_plus_repo_path}";
            if (Directory.Exists(il2cppPlusRepoDir))
            {
                var ret = BashUtil.RunCommand2(il2cppPlusRepoDir, "git",
                    new string[] { "log", "HEAD", "-n", "1", "--pretty=format:\"%H\"", },
                    false);
                if (ret.ExitCode == 0)
                {
                    return ret.StdOut.Trim();
                }
                else
                {
                    return "ERROR";
                }
            }
            return "";
        }

        public bool HasUpdateIl2Cpp(string il2cppBranch)
        {
            string workDir = SettingsUtil.HybridCLRDataDir;
            // last hash hybridclr
            {
                string hybridclrRepoDir = $"{workDir}/{hybridclr_repo_path}";
                var ret1 = BashUtil.RunCommand2(hybridclrRepoDir, "git", new string[] { "log", "HEAD", "-n", "1", "--pretty=format:\"%H\"", }, false);
                BashUtil.RunCommand2(hybridclrRepoDir, "git", new string[] { "fetch", "--depth=1" }, false);
                var ret2 = BashUtil.RunCommand2(hybridclrRepoDir, "git",
                    new string[] { "log", "remotes/origin/HEAD", "-n", "1", "--pretty=format:\"%H\"", }
                    , false);
                if (ret1.StdOut != ret2.StdOut)
                {
                    return true;
                }
            }
            // last hash il2cpp_plus
            {
                string il2cppPlusRepoDir = $"{workDir}/{il2cpp_plus_repo_path}";
                var ret1 = BashUtil.RunCommand2(il2cppPlusRepoDir, "git",
                    new string[] { "log", $"{il2cppBranch}", "-n", "1", "--pretty=format:\"%H\"", }, false);
                BashUtil.RunCommand2(il2cppPlusRepoDir, "git",
                    new string[] { "fetch", "--depth=1" }, false);
                var ret2 = BashUtil.RunCommand2(il2cppPlusRepoDir, "git",
                    new string[] { "log", $"remotes/origin/{il2cppBranch}", "-n", "1", "--pretty=format:\"%H\"", }, false);
                if (ret1.StdOut != ret2.StdOut)
                {
                    return true;
                }
            }
            return false;
        }
    }
}