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using System;
using System.IO;
using StardewModdingAPI.Framework.Reflection;
using StardewModdingAPI.Framework.Serialisation;
namespace StardewModdingAPI.Framework
{
/// <summary>Provides simplified APIs for writing mods.</summary>
internal class ModHelper : IModHelper
{
/*********
** Properties
*********/
/// <summary>Encapsulates SMAPI's JSON file parsing.</summary>
private readonly JsonHelper JsonHelper;
/*********
** Accessors
*********/
/// <summary>The mod directory path.</summary>
public string DirectoryPath { get; }
/// <summary>Simplifies access to private game code.</summary>
public IReflectionHelper Reflection { get; } = new ReflectionHelper();
/// <summary>Metadata about loaded mods.</summary>
public IModRegistry ModRegistry { get; }
/// <summary>An API for managing console commands.</summary>
public ICommandHelper ConsoleCommands { get; }
/*********
** Public methods
*********/
/// <summary>Construct an instance.</summary>
/// <param name="modName">The friendly mod name.</param>
/// <param name="modDirectory">The mod directory path.</param>
/// <param name="jsonHelper">Encapsulate SMAPI's JSON parsing.</param>
/// <param name="modRegistry">Metadata about loaded mods.</param>
/// <param name="commandManager">Manages console commands.</param>
/// <exception cref="ArgumentNullException">An argument is null or empty.</exception>
/// <exception cref="InvalidOperationException">The <paramref name="modDirectory"/> path does not exist on disk.</exception>
public ModHelper(string modName, string modDirectory, JsonHelper jsonHelper, IModRegistry modRegistry, CommandManager commandManager)
{
// validate
if (string.IsNullOrWhiteSpace(modDirectory))
throw new ArgumentNullException(nameof(modDirectory));
if (jsonHelper == null)
throw new ArgumentNullException(nameof(jsonHelper));
if (modRegistry == null)
throw new ArgumentNullException(nameof(modRegistry));
if (!Directory.Exists(modDirectory))
throw new InvalidOperationException("The specified mod directory does not exist.");
// initialise
this.JsonHelper = jsonHelper;
this.DirectoryPath = modDirectory;
this.ModRegistry = modRegistry;
this.ConsoleCommands = new CommandHelper(modName, commandManager);
}
/****
** Mod config file
****/
/// <summary>Read the mod's configuration file (and create it if needed).</summary>
/// <typeparam name="TConfig">The config class type. This should be a plain class that has public properties for the settings you want. These can be complex types.</typeparam>
public TConfig ReadConfig<TConfig>()
where TConfig : class, new()
{
TConfig config = this.ReadJsonFile<TConfig>("config.json") ?? new TConfig();
this.WriteConfig(config); // create file or fill in missing fields
return config;
}
/// <summary>Save to the mod's configuration file.</summary>
/// <typeparam name="TConfig">The config class type.</typeparam>
/// <param name="config">The config settings to save.</param>
public void WriteConfig<TConfig>(TConfig config)
where TConfig : class, new()
{
this.WriteJsonFile("config.json", config);
}
/****
** Generic JSON files
****/
/// <summary>Read a JSON file.</summary>
/// <typeparam name="TModel">The model type.</typeparam>
/// <param name="path">The file path relative to the mod directory.</param>
/// <returns>Returns the deserialised model, or <c>null</c> if the file doesn't exist or is empty.</returns>
public TModel ReadJsonFile<TModel>(string path)
where TModel : class
{
path = Path.Combine(this.DirectoryPath, path);
return this.JsonHelper.ReadJsonFile<TModel>(path);
}
/// <summary>Save to a JSON file.</summary>
/// <typeparam name="TModel">The model type.</typeparam>
/// <param name="path">The file path relative to the mod directory.</param>
/// <param name="model">The model to save.</param>
public void WriteJsonFile<TModel>(string path, TModel model)
where TModel : class
{
path = Path.Combine(this.DirectoryPath, path);
this.JsonHelper.WriteJsonFile(path, model);
}
}
}
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