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163 lines (141 loc) · 6.48 KB
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using ModuleManager.Collections;
using ModuleManager.Patches;
using ModuleManager.Patches.PassSpecifiers;
using ModuleManager.Progress;
namespace ModuleManager
{
public class PatchList : IEnumerable<IPass>
{
private class ModPass
{
public readonly string name;
public readonly Pass beforePass;
public readonly Pass forPass;
public readonly Pass afterPass;
public readonly Pass lastPass;
public ModPass(string name)
{
if (name == null) throw new ArgumentNullException(nameof(name));
if (name == string.Empty) throw new ArgumentException("can't be blank", nameof(name));
this.name = name.ToUpperInvariant();
beforePass = new Pass($":BEFORE[{this.name}]");
forPass = new Pass($":FOR[{this.name}]");
afterPass = new Pass($":AFTER[{this.name}]");
lastPass = new Pass($":LAST[{this.name}]");
}
public void AddBeforePatch(IPatch patch) => beforePass.Add(patch ?? throw new ArgumentNullException(nameof(patch)));
public void AddForPatch(IPatch patch) => forPass.Add(patch ?? throw new ArgumentNullException(nameof(patch)));
public void AddAfterPatch(IPatch patch) => afterPass.Add(patch ?? throw new ArgumentNullException(nameof(patch)));
public void AddLastPatch(IPatch patch) => lastPass.Add(patch ?? throw new ArgumentNullException(nameof(patch)));
}
private class ModPassCollection : IEnumerable<ModPass>
{
private readonly ModPass[] passesArray;
private readonly Dictionary<string, ModPass> passesDict;
public ModPassCollection(IEnumerable<string> modList)
{
int count = modList.Count();
passesArray = new ModPass[count];
passesDict = new Dictionary<string, ModPass>(count);
int i = 0;
foreach (string mod in modList)
{
ModPass pass = new ModPass(mod);
passesArray[i] = pass;
passesDict.Add(mod.ToLowerInvariant(), pass);
i++;
}
}
public ModPass this[string name] => passesDict[name.ToLowerInvariant()];
public ModPass this[int index] => passesArray[index];
public bool HasMod(string name) => passesDict.ContainsKey(name.ToLowerInvariant());
public int Count => passesArray.Length;
public ArrayEnumerator<ModPass> GetEnumerator() => new ArrayEnumerator<ModPass>(passesArray);
IEnumerator<ModPass> IEnumerable<ModPass>.GetEnumerator() => GetEnumerator();
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
}
private readonly Pass insertPatches = new Pass(":INSERT (initial)");
private readonly Pass firstPatches = new Pass(":FIRST");
private readonly Pass legacyPatches = new Pass(":LEGACY (default)");
private readonly Pass finalPatches = new Pass(":FINAL");
private readonly ModPassCollection modPasses;
public PatchList(IEnumerable<string> modList, IEnumerable<IPatch> patches, IPatchProgress progress)
{
modPasses = new ModPassCollection(modList ?? throw new ArgumentNullException(nameof(modList)));
if (patches == null) throw new ArgumentNullException(nameof(patches));
if (progress == null) throw new ArgumentNullException(nameof(progress));
foreach (IPatch patch in patches)
{
if (patch.PassSpecifier is InsertPassSpecifier)
{
insertPatches.Add(patch);
}
else if (patch.PassSpecifier is FirstPassSpecifier)
{
firstPatches.Add(patch);
}
else if (patch.PassSpecifier is LegacyPassSpecifier)
{
legacyPatches.Add(patch);
}
else if (patch.PassSpecifier is BeforePassSpecifier beforePassSpecifier)
{
EnsureMod(beforePassSpecifier.mod);
modPasses[beforePassSpecifier.mod].AddBeforePatch(patch);
}
else if (patch.PassSpecifier is ForPassSpecifier forPassSpecifier)
{
EnsureMod(forPassSpecifier.mod);
modPasses[forPassSpecifier.mod].AddForPatch(patch);
}
else if (patch.PassSpecifier is AfterPassSpecifier afterPassSpecifier)
{
EnsureMod(afterPassSpecifier.mod);
modPasses[afterPassSpecifier.mod].AddAfterPatch(patch);
}
else if (patch.PassSpecifier is LastPassSpecifier lastPassSpecifier)
{
EnsureMod(lastPassSpecifier.mod);
modPasses[lastPassSpecifier.mod].AddLastPatch(patch);
}
else if (patch.PassSpecifier is FinalPassSpecifier)
{
finalPatches.Add(patch);
}
else
{
throw new NotImplementedException("Don't know what to do with pass specifier: " + patch.PassSpecifier.Descriptor);
}
if (patch.CountsAsPatch) progress.PatchAdded();
}
}
public IEnumerator<IPass> GetEnumerator()
{
yield return insertPatches;
yield return firstPatches;
yield return legacyPatches;
foreach (ModPass modPass in modPasses)
{
yield return modPass.beforePass;
yield return modPass.forPass;
yield return modPass.afterPass;
}
foreach (ModPass modPass in modPasses)
{
yield return modPass.lastPass;
}
yield return finalPatches;
}
IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
private void EnsureMod(string mod)
{
if (mod == null) throw new ArgumentNullException(nameof(mod));
if (mod == string.Empty) throw new ArgumentException("can't be empty", nameof(mod));
if (!modPasses.HasMod(mod)) throw new KeyNotFoundException($"Mod '{mod}' not found");
}
}
}