using System.IO;
using StardewModdingAPI.Toolkit.Framework;

namespace StardewModdingAPI.Installer.Framework
{
    /// <summary>Manages paths for the SMAPI installer.</summary>
    internal class InstallerPaths
    {
        /*********
        ** Accessors
        *********/
        /****
        ** Main folders
        ****/
        /// <summary>The directory path containing the files to copy into the game folder.</summary>
        public DirectoryInfo BundleDir { get; }

        /// <summary>The directory containing the installed game.</summary>
        public DirectoryInfo GameDir { get; }

        /// <summary>The directory into which to install mods.</summary>
        public DirectoryInfo ModsDir { get; }

        /****
        ** Installer paths
        ****/
        /// <summary>The full path to directory path containing the files to copy into the game folder.</summary>
        public string BundlePath => this.BundleDir.FullName;

        /// <summary>The full path to the backup API user settings folder, if applicable.</summary>
        public string BundleApiUserConfigPath { get; }

        /****
        ** Game paths
        ****/
        /// <summary>The full path to the directory containing the installed game.</summary>
        public string GamePath => this.GameDir.FullName;

        /// <summary>The full path to the directory into which to install mods.</summary>
        public string ModsPath => this.ModsDir.FullName;

        /// <summary>The full path to SMAPI's internal configuration file.</summary>
        public string ApiConfigPath { get; }

        /// <summary>The full path to the user's config overrides file.</summary>
        public string ApiUserConfigPath { get; }

        /// <summary>The full path to the installed game DLL.</summary>
        public string GameDllPath { get; }

        /// <summary>The full path to the installed SMAPI executable file.</summary>
        public string UnixSmapiExecutablePath { get; }

        /// <summary>The full path to the vanilla game launch script on Linux/macOS.</summary>
        public string VanillaLaunchScriptPath { get; }

        /// <summary>The full path to the installed SMAPI launch script on Linux/macOS before it's renamed.</summary>
        public string NewLaunchScriptPath { get; }

        /// <summary>The full path to the backed up game launch script on Linux/macOS after SMAPI is installed.</summary>
        public string BackupLaunchScriptPath { get; }


        /*********
        ** Public methods
        *********/
        /// <summary>Construct an instance.</summary>
        /// <param name="bundleDir">The directory path containing the files to copy into the game folder.</param>
        /// <param name="gameDir">The directory path for the installed game.</param>
        public InstallerPaths(DirectoryInfo bundleDir, DirectoryInfo gameDir)
        {
            // base paths
            this.BundleDir = bundleDir;
            this.GameDir = gameDir;
            this.ModsDir = new DirectoryInfo(Path.Combine(gameDir.FullName, "Mods"));
            this.GameDllPath = Path.Combine(gameDir.FullName, Constants.GameDllName);

            // launch scripts
            this.VanillaLaunchScriptPath = Path.Combine(gameDir.FullName, "StardewValley");
            this.NewLaunchScriptPath = Path.Combine(gameDir.FullName, "unix-launcher.sh");
            this.BackupLaunchScriptPath = Path.Combine(gameDir.FullName, "StardewValley-original");
            this.UnixSmapiExecutablePath = Path.Combine(gameDir.FullName, "StardewModdingAPI");

            // internal files
            this.BundleApiUserConfigPath = Path.Combine(bundleDir.FullName, "smapi-internal", "config.user.json");
            this.ApiConfigPath = Path.Combine(gameDir.FullName, "smapi-internal", "config.json");
            this.ApiUserConfigPath = Path.Combine(gameDir.FullName, "smapi-internal", "config.user.json");
        }
    }
}