using System;
using System.Collections.Generic;

namespace Luban.Job.Common.Utils
{
    public static class RenderFileUtil
    {

        public static string GetDefTypePath(string fullName, ELanguage lan)
        {
            switch (lan)
            {
                case ELanguage.CS: return fullName.Replace('.', '/') + ".cs";
                case ELanguage.JAVA: return fullName.Replace('.', '/') + ".java";
                case ELanguage.CPP: return fullName + ".cpp";
                case ELanguage.GO: return fullName + ".go";
                case ELanguage.LUA: return fullName.Replace('.', '_') + ".lua";
                case ELanguage.JS: return fullName + ".js";
                case ELanguage.TYPESCRIPT: return fullName.Replace('.', '/') + ".ts";
                default: throw new NotSupportedException();
            }

        }

        public static string GetCsDefTypePath(string fullName)
        {
            return fullName.Replace('.', '/') + ".cs";
        }

        public static string GetGoDefTypePath(string fullName)
        {
            return fullName + ".go";
        }

        public static string GetUeCppDefTypeHeaderFilePath(string fullName)
        {
            return fullName.Replace('.', '_') + ".h";
        }

        public static string GetUeCppDefTypeHeaderFilePathWithoutSuffix(string fullName)
        {
            return fullName.Replace('.', '_');
        }


        public static string GetCppDefTypeCppFilePath(string fullName)
        {
            return fullName + ".cpp";
        }

        public static string GetCppDefTypeHeadFilePath(string fullName)
        {
            return fullName + ".h";
        }

        public static string GetTableDataPath(string fullName)
        {
            return fullName + ".bin";
        }

        public static bool IsExcelFile(string fullName)
        {
            return fullName.EndsWith(".csv", StringComparison.Ordinal)
                || fullName.EndsWith(".xls", StringComparison.Ordinal)
                || fullName.EndsWith(".xlsx", StringComparison.Ordinal);
        }

        public static (string, string) SplitFileAndSheetName(string url)
        {
            int sheetSepIndex = url.IndexOf('@');
            if (sheetSepIndex < 0)
            {
                return (url, null);
            }
            else
            {
                int lastPathSep = url.LastIndexOf('/', sheetSepIndex);
                if (lastPathSep >= 0)
                {
                    return (url[0..(lastPathSep + 1)] + url[(sheetSepIndex + 1)..], url[(lastPathSep + 1)..sheetSepIndex]);
                }
                else
                {
                    return (url[(sheetSepIndex + 1)..], url[(lastPathSep + 1)..sheetSepIndex]);
                }
            }
        }

        private readonly static Dictionary<string, ELanguage> s_name2Lans = new()
        {
            { "cs", ELanguage.CS },
            { "java", ELanguage.JAVA },
            { "go", ELanguage.GO },
            { "cpp", ELanguage.CPP },
            { "lua", ELanguage.LUA },
            { "python", ELanguage.PYTHON },
            { "typescript", ELanguage.TYPESCRIPT },
            { "javascript", ELanguage.JS },
            { "erlang", ELanguage.ERLANG },
        };

        public static ELanguage GetLanguage(string genType)
        {
            foreach (var (name, lan) in s_name2Lans)
            {
                if (genType.Contains(name))
                {
                    return lan;
                }
            }
            throw new ArgumentException($"not support output data type:{genType}");
        }

        private readonly static Dictionary<string, string> s_name2Suxxifx = new()
        {
            { "json", "json" },
            { "lua", "lua" },
            { "bin", "bin" },
            { "xml", "xml" },
            { "yaml", "yml" },
            { "yml", "yml" },
            { "erlang", "erl" },
            { "erl", "erl" },
        };

        public static string GetOutputFileSuffix(string genType)
        {
            foreach (var (name, suffix) in s_name2Suxxifx)
            {
                if (genType.Contains(name))
                {
                    return suffix;
                }
            }
            throw new Exception($"not support output data type:{genType}");
        }

        public static string GetOutputFileName(string genType, string fileName)
        {
            return $"{(genType.Contains("lua") ? fileName.Replace('.', '_') : fileName)}.{GetOutputFileSuffix(genType)}";
        }
    }
}