using Actions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Build {
    public static class Dependencies {
        static readonly string APR_VERSION = "1.7.5";
        static readonly string APU_VERSION = "1.6.3";
        static readonly string PY3C_VERSION = "1.1";
        static readonly string SERF_VERSION = "1.3.10";
        static readonly string ZLIB_VERSION = "1.2.8";
        static readonly string SQLITE_VERSION = "3.39.4";
        static readonly int SQLITE_VERSION_REL_YEAR = 2022;
        static readonly string APACHE_MIRROR = "https://archive.apache.org/dist";


        public static async Task<string?> DownloadIfNotExist(string url, string outPath) {
            string? result = outPath;
            if (!File.Exists(outPath)) {
                Console.Write($"Downloading: {url}");
                result = await Download.FileFromUrl(url, outPath);
                Console.WriteLine($" Done");
            } else {
                Console.WriteLine($"Skip downloading: {url}");
            }
            return result;
        }

        public static async Task<string> GetZLib(string dir) {
            var ZLIB = $"zlib-{ZLIB_VERSION}";
            var archiveFile = await DownloadIfNotExist($"https://github.com/madler/zlib/archive/refs/tags/v{ZLIB_VERSION}.tar.gz", Path.Combine(dir, $"{ZLIB}.tar.gz"));
            Archive.UnpackTarGz(archiveFile, dir);
            return Path.Combine(dir, ZLIB);
        }

        public static async Task<string> GetSqlite(string dir) {
            var SQLITE_VERSION_LIST = SQLITE_VERSION.Split(".");
            var SQLITE = string.Format("sqlite-amalgamation-{0}{1}{2}00", SQLITE_VERSION_LIST[0], SQLITE_VERSION_LIST[1].PadLeft(2, '0'), SQLITE_VERSION_LIST[2].PadLeft(2, '0'));
            var archiveFile = await DownloadIfNotExist($"https://www.sqlite.org/{SQLITE_VERSION_REL_YEAR}/{SQLITE}.zip", Path.Combine(dir, $"{SQLITE}.zip"));
            Archive.UnpackZip(archiveFile, dir);
            return Path.Combine(dir, $"{SQLITE}");
        }

        public static async Task<string> GetSerf(string dir) {
            var SERF = $"serf-{SERF_VERSION}";
            var archiveFile = await DownloadIfNotExist($"https://archive.apache.org/dist/serf/{SERF}.tar.bz2", Path.Combine(dir, $"{SERF}.tar.bz2"));
            Archive.UnpackTarBz2(archiveFile, dir);
            return Path.Combine(dir, $"{SERF}");
        }

        public static async Task<string> GetExpat(string dir) {
        
            var archiveFile = await DownloadIfNotExist($"https://github.com/libexpat/libexpat/releases/download/R_2_6_4/expat-win64bin-2.6.4.zip", Path.Combine(dir, $"expat-win64bin-2.6.4.zip"));
            var resultDir = Path.Combine(dir, "expat-win64bin-2.6.4");
            Directory.CreateDirectory(resultDir);
            Archive.UnpackZip(archiveFile, resultDir);
            return Path.Combine(dir, resultDir);
        }

        public static async Task<string> GetOpenssl(string dir) {
            var archiveFile = await DownloadIfNotExist($"https://github.com/openssl/openssl/releases/download/openssl-3.2.3/openssl-3.2.3.tar.gz", Path.Combine(dir, $"openssl-3.2.3.tar.gz"));
            Archive.UnpackTarGz(archiveFile, dir);
            return Path.Combine(dir, $"openssl-3.2.3");
        }

        public static async Task<string> GetApr(string dir) {
            var APR = $"apr-{APR_VERSION}";
            var archiveFile = await DownloadIfNotExist($"{APACHE_MIRROR}/apr/{APR}.tar.bz2", Path.Combine(dir, $"{APR}.tar.bz2"));
            Archive.UnpackTarBz2(archiveFile, dir);
            return Path.Combine(dir, $"{APR}");
        }

        public static async Task<string> GetAprUtil(string dir) {
            var APR_UTIL = $"apr-util-{APU_VERSION}";
            var archiveFile = await DownloadIfNotExist($"{APACHE_MIRROR}/apr/{APR_UTIL}.tar.bz2", Path.Combine(dir, $"{APR_UTIL}.tar.bz2"));
            Archive.UnpackTarBz2(archiveFile, dir);
            return Path.Combine(dir, $"{APR_UTIL}");
        }

        public static async Task<string> GetSubversion(string projectRootDir) {
            return Path.GetFullPath(Path.Combine(projectRootDir, "..", "subversion"));
        }
    }
}