Dalamud/Dalamud/Game/Config/GameConfigSection.cs

590 lines
20 KiB
C#

using System.Collections.Concurrent;
using System.Diagnostics;
using System.Text;
using Dalamud.Memory;
using Dalamud.Utility;
using FFXIVClientStructs.FFXIV.Common.Configuration;
using Serilog;
namespace Dalamud.Game.Config;
/// <summary>
/// Represents a section of the game config and contains helper functions for accessing and setting values.
/// </summary>
public class GameConfigSection
{
private readonly Framework framework;
private readonly ConcurrentDictionary<string, uint> indexMap = new();
private readonly ConcurrentDictionary<uint, object> enumMap = new();
/// <summary>
/// Initializes a new instance of the <see cref="GameConfigSection"/> class.
/// </summary>
/// <param name="sectionName">Name of the section.</param>
/// <param name="framework">The framework service.</param>
/// <param name="configBase">Unmanaged ConfigBase instance.</param>
internal unsafe GameConfigSection(string sectionName, Framework framework, ConfigBase* configBase)
: this(sectionName, framework, () => configBase)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="GameConfigSection"/> class.
/// </summary>
/// <param name="sectionName">Name of the section.</param>
/// <param name="framework">The framework service.</param>
/// <param name="getConfigBase">A function that determines which ConfigBase instance should be used.</param>
internal GameConfigSection(string sectionName, Framework framework, GetConfigBaseDelegate getConfigBase)
{
this.SectionName = sectionName;
this.framework = framework;
this.GetConfigBase = getConfigBase;
Log.Verbose("[GameConfig] Initalizing {SectionName} with {ConfigCount} entries.", this.SectionName, this.ConfigCount);
}
/// <summary>
/// Delegate that gets the struct the section accesses.
/// </summary>
/// <returns>Pointer to unmanaged ConfigBase.</returns>
internal unsafe delegate ConfigBase* GetConfigBaseDelegate();
/// <summary>
/// Event which is fired when a game config option is changed within the section.
/// </summary>
internal event EventHandler<ConfigChangeEvent>? Changed;
/// <summary>
/// Gets the number of config entries contained within the section.
/// Some entries may be empty with no data.
/// </summary>
public unsafe uint ConfigCount => this.GetConfigBase()->ConfigCount;
/// <summary>
/// Gets the name of the config section.
/// </summary>
public string SectionName { get; }
/// <summary>
/// Gets the pointer to the config section container.
/// </summary>
internal GetConfigBaseDelegate GetConfigBase { get; }
/// <summary>
/// Attempts to get a boolean config option.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetBool(string name, out bool value)
{
value = false;
if (!this.TryGetIndex(name, out var index))
{
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
return false;
}
value = entry->Value.UInt != 0;
return true;
}
/// <summary>
/// Attempts to get a boolean config option.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public bool TryGet(string name, out bool value) => this.TryGetBool(name, out value);
/// <summary>
/// Get a boolean config option.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <returns>Value of the config option.</returns>
/// <exception cref="ConfigOptionNotFoundException">Thrown if the config option is not found.</exception>
public bool GetBool(string name)
{
if (!this.TryGetBool(name, out var value))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
return value;
}
/// <summary>
/// Set a boolean config option.
/// Note: Not all config options will be be immediately reflected in the game.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">New value of the config option.</param>
/// <exception cref="ConfigOptionNotFoundException">Throw if the config option is not found.</exception>
/// <exception cref="UnreachableException">Thrown if the name of the config option is found, but the struct was not.</exception>
public unsafe void Set(string name, bool value)
{
if (!this.TryGetIndex(name, out var index))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
if (!this.TryGetEntry(index, out var entry))
{
throw new UnreachableException($"An unexpected error was encountered setting {name} in {this.SectionName}");
}
if ((ConfigType)entry->Type != ConfigType.UInt)
{
throw new IncorrectConfigTypeException(this.SectionName, name, (ConfigType)entry->Type, ConfigType.UInt);
}
entry->SetValue(value ? 1U : 0U);
}
/// <summary>
/// Attempts to get an unsigned integer config value.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetUInt(string name, out uint value)
{
value = 0;
if (!this.TryGetIndex(name, out var index))
{
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
return false;
}
value = entry->Value.UInt;
return true;
}
/// <summary>
/// Attempts to get an unsigned integer config value.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public bool TryGet(string name, out uint value) => this.TryGetUInt(name, out value);
/// <summary>
/// Get an unsigned integer config option.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <returns>Value of the config option.</returns>
/// <exception cref="ConfigOptionNotFoundException">Thrown if the config option is not found.</exception>
public uint GetUInt(string name)
{
if (!this.TryGetUInt(name, out var value))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
return value;
}
/// <summary>
/// Set an unsigned integer config option.
/// Note: Not all config options will be be immediately reflected in the game.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">New value of the config option.</param>
/// <exception cref="ConfigOptionNotFoundException">Throw if the config option is not found.</exception>
/// <exception cref="UnreachableException">Thrown if the name of the config option is found, but the struct was not.</exception>
public unsafe void Set(string name, uint value)
{
this.framework.RunOnFrameworkThread(() =>
{
if (!this.TryGetIndex(name, out var index))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
if (!this.TryGetEntry(index, out var entry))
{
throw new UnreachableException($"An unexpected error was encountered setting {name} in {this.SectionName}");
}
if ((ConfigType)entry->Type != ConfigType.UInt)
{
throw new IncorrectConfigTypeException(this.SectionName, name, (ConfigType)entry->Type, ConfigType.UInt);
}
entry->SetValue(value);
});
}
/// <summary>
/// Attempts to get a float config value.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetFloat(string name, out float value)
{
value = 0;
if (!this.TryGetIndex(name, out var index))
{
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
return false;
}
value = entry->Value.Float;
return true;
}
/// <summary>
/// Attempts to get a float config value.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public bool TryGet(string name, out float value) => this.TryGetFloat(name, out value);
/// <summary>
/// Get a float config option.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <returns>Value of the config option.</returns>
/// <exception cref="ConfigOptionNotFoundException">Thrown if the config option is not found.</exception>
public float GetFloat(string name)
{
if (!this.TryGetFloat(name, out var value))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
return value;
}
/// <summary>
/// Set a float config option.
/// Note: Not all config options will be be immediately reflected in the game.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">New value of the config option.</param>
/// <exception cref="ConfigOptionNotFoundException">Throw if the config option is not found.</exception>
/// <exception cref="UnreachableException">Thrown if the name of the config option is found, but the struct was not.</exception>
public unsafe void Set(string name, float value)
{
this.framework.RunOnFrameworkThread(() =>
{
if (!this.TryGetIndex(name, out var index))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
if (!this.TryGetEntry(index, out var entry))
{
throw new UnreachableException($"An unexpected error was encountered setting {name} in {this.SectionName}");
}
if ((ConfigType)entry->Type != ConfigType.Float)
{
throw new IncorrectConfigTypeException(this.SectionName, name, (ConfigType)entry->Type, ConfigType.Float);
}
entry->SetValue(value);
});
}
/// <summary>
/// Attempts to get a string config value.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetString(string name, out string value)
{
value = string.Empty;
if (!this.TryGetIndex(name, out var index))
{
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
return false;
}
if (entry->Type != 4)
{
return false;
}
if (entry->Value.String == null)
{
return false;
}
value = entry->Value.String->ToString();
return true;
}
/// <summary>
/// Attempts to get a string config value.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <returns>A value representing the success.</returns>
public bool TryGet(string name, out string value) => this.TryGetString(name, out value);
/// <summary>
/// Get a string config option.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <returns>Value of the config option.</returns>
/// <exception cref="ConfigOptionNotFoundException">Thrown if the config option is not found.</exception>
public string GetString(string name)
{
if (!this.TryGetString(name, out var value))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
return value;
}
/// <summary>Attempts to get a string config value as an enum value.</summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">The returned value of the config option.</param>
/// <typeparam name="T">Type of the enum. Name of each enum fields are compared against.</typeparam>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetStringAsEnum<T>(string name, out T value) where T : struct, Enum
{
value = default;
if (!this.TryGetIndex(name, out var index))
{
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
return false;
}
if (entry->Type != 4)
{
return false;
}
if (entry->Value.String == null)
{
return false;
}
var n8 = entry->Value.String->AsSpan();
Span<char> n16 = stackalloc char[Encoding.UTF8.GetCharCount(n8)];
Encoding.UTF8.GetChars(n8, n16);
return Enum.TryParse(n16, out value);
}
/// <summary>
/// Set a string config option.
/// Note: Not all config options will be be immediately reflected in the game.
/// </summary>
/// <param name="name">Name of the config option.</param>
/// <param name="value">New value of the config option.</param>
/// <exception cref="ConfigOptionNotFoundException">Throw if the config option is not found.</exception>
/// <exception cref="UnreachableException">Thrown if the name of the config option is found, but the struct was not.</exception>
public unsafe void Set(string name, string value)
{
this.framework.RunOnFrameworkThread(() =>
{
if (!this.TryGetIndex(name, out var index))
{
throw new ConfigOptionNotFoundException(this.SectionName, name);
}
if (!this.TryGetEntry(index, out var entry))
{
throw new UnreachableException($"An unexpected error was encountered setting {name} in {this.SectionName}");
}
if ((ConfigType)entry->Type != ConfigType.String)
{
throw new IncorrectConfigTypeException(this.SectionName, name, (ConfigType)entry->Type, ConfigType.String);
}
entry->SetValue(value);
});
}
/// <summary>
/// Attempts to get the properties of a UInt option from the config section.
/// </summary>
/// <param name="name">Name of the option to get the properties of.</param>
/// <param name="properties">Details of the option: Minimum, Maximum, and Default values.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetProperties(string name, out UIntConfigProperties? properties)
{
if (!this.TryGetIndex(name, out var index))
{
properties = null;
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
properties = null;
return false;
}
if ((ConfigType)entry->Type != ConfigType.UInt)
{
properties = null;
return false;
}
var prop = &entry->Properties.UInt;
properties = new UIntConfigProperties(prop->DefaultValue, prop->MinValue, prop->MaxValue);
return true;
}
/// <summary>
/// Attempts to get the properties of a Float option from the config section.
/// </summary>
/// <param name="name">Name of the option to get the properties of.</param>
/// <param name="properties">Details of the option: Minimum, Maximum, and Default values.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetProperties(string name, out FloatConfigProperties? properties)
{
if (!this.TryGetIndex(name, out var index))
{
properties = null;
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
properties = null;
return false;
}
if ((ConfigType)entry->Type != ConfigType.Float)
{
properties = null;
return false;
}
var prop = &entry->Properties.Float;
properties = new FloatConfigProperties(prop->DefaultValue, prop->MinValue, prop->MaxValue);
return true;
}
/// <summary>
/// Attempts to get the properties of a String option from the config section.
/// </summary>
/// <param name="name">Name of the option to get the properties of.</param>
/// <param name="properties">Details of the option: Minimum, Maximum, and Default values.</param>
/// <returns>A value representing the success.</returns>
public unsafe bool TryGetProperties(string name, out StringConfigProperties? properties)
{
if (!this.TryGetIndex(name, out var index))
{
properties = null;
return false;
}
if (!this.TryGetEntry(index, out var entry))
{
properties = null;
return false;
}
if ((ConfigType)entry->Type != ConfigType.String)
{
properties = null;
return false;
}
var prop = entry->Properties.String;
properties = new StringConfigProperties(prop.DefaultValue == null ? null : MemoryHelper.ReadSeString(prop.DefaultValue));
return true;
}
/// <summary>
/// Invokes a change event within the config section.
/// </summary>
/// <param name="entry">The config entry that was changed.</param>
/// <typeparam name="TEnum">SystemConfigOption, UiConfigOption, or UiControlOption.</typeparam>
/// <returns>The ConfigChangeEvent record.</returns>
internal unsafe ConfigChangeEvent? InvokeChange<TEnum>(ConfigEntry* entry) where TEnum : Enum
{
if (!this.enumMap.TryGetValue(entry->Index, out var enumObject))
{
if (entry->Name.Value == null) return null;
var name = entry->Name.ToString();
if (Enum.TryParse(typeof(TEnum), name, out enumObject))
{
this.enumMap.TryAdd(entry->Index, enumObject);
}
else
{
enumObject = null;
this.enumMap.TryAdd(entry->Index, null);
}
}
if (enumObject == null) return null;
var eventArgs = new ConfigChangeEvent<TEnum>((TEnum)enumObject);
this.Changed?.InvokeSafely(this, eventArgs);
return eventArgs;
}
private unsafe bool TryGetIndex(string name, out uint index)
{
if (this.indexMap.TryGetValue(name, out index))
{
return true;
}
var configBase = this.GetConfigBase();
var e = configBase->ConfigEntry;
for (var i = 0U; i < configBase->ConfigCount; i++, e++)
{
if (e->Name.Value == null)
{
continue;
}
var eName = e->Name.ToString();
if (eName.Equals(name))
{
this.indexMap.TryAdd(name, i);
index = i;
return true;
}
}
index = 0;
return false;
}
private unsafe bool TryGetEntry(uint index, out ConfigEntry* entry)
{
entry = null;
var configBase = this.GetConfigBase();
if (configBase->ConfigEntry == null || index >= configBase->ConfigCount)
{
return false;
}
entry = configBase->ConfigEntry;
entry += index;
return true;
}
}