410 lines
13 KiB
C#
410 lines
13 KiB
C#
using System;
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using System.IO;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using AibisDream.SaveSystem.CloudSave;
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using AibisDream.Utility;
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using Newtonsoft.Json;
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using UnityEngine;
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namespace AibisDream.SaveSystem
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{
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/// <summary>
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/// 存档槽位业务核心：管理自动档、手动档、读档、继续游戏与 P1 迁移。
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/// </summary>
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public static class SlotManager
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{
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private static bool _migrated;
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private static readonly object SlotWriteLock = new object();
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/// <summary>将快照与缩略图写入指定槽位。</summary>
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public static void SaveToSlot(int slotIndex, SaveSnapshot snapshot, byte[] thumbnailPng)
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{
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EnsureMigrated();
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WriteSlot(slotIndex, snapshot, thumbnailPng);
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}
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/// <summary>将快照与缩略图写入自动档（slot 0）。</summary>
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public static void SaveToAutoSlot(SaveSnapshot snapshot, byte[] thumbnailPng)
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{
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SaveToSlot(SlotIndex.Auto, snapshot, thumbnailPng);
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SetLatestSlotIndex(SlotIndex.Auto);
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CloudSaveManager.OnSlotWritten(SlotIndex.Auto);
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}
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/// <summary>
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/// 主线程完成序列化后，在后台线程写入自动档（slot 0）。
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/// 调用方须已在主线程完成 <see cref="SnapshotService.Capture"/>。
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/// </summary>
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public static async Task SaveToAutoSlotAsync(SaveSnapshot snapshot, byte[] thumbnailPng)
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{
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EnsureMigrated();
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var json = SnapshotPersistence.Serialize(snapshot);
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var meta = BuildSlotMeta(SlotIndex.Auto, snapshot);
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await Task.Run(() => WriteSlotFiles(SlotIndex.Auto, json, meta, thumbnailPng));
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SetLatestSlotIndex(SlotIndex.Auto);
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CloudSaveManager.OnSlotWritten(SlotIndex.Auto);
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}
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/// <summary>将当前自动档复制到指定手动档。</summary>
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public static void CopyAutoToManual(int manualSlotIndex)
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{
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EnsureMigrated();
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if (manualSlotIndex < SlotIndex.ManualStart || manualSlotIndex > SlotIndex.ManualEnd)
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{
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Debug.LogError($"[SlotManager] 手动槽位编号非法: {manualSlotIndex}");
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return;
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}
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if (!SlotDirectory.Exists(SlotIndex.Auto))
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{
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Debug.LogError("[SlotManager] 自动档不存在，无法复制手动档。");
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return;
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}
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SlotDirectory.EnsureSlotDirectory(manualSlotIndex);
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var sourceDir = SlotDirectory.GetSlotPath(SlotIndex.Auto);
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var targetDir = SlotDirectory.GetSlotPath(manualSlotIndex);
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CopyFileIfExists(
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Path.Combine(sourceDir, $"{ConstRef.SaveSnapshotFileName}.json"),
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Path.Combine(targetDir, $"{ConstRef.SaveSnapshotFileName}.json"));
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CopyFileIfExists(
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Path.Combine(sourceDir, $"{ConstRef.SaveMetaFileName}.json"),
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Path.Combine(targetDir, $"{ConstRef.SaveMetaFileName}.json"));
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CopyFileIfExists(
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Path.Combine(sourceDir, $"{ConstRef.SaveThumbnailFileName}.png"),
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Path.Combine(targetDir, $"{ConstRef.SaveThumbnailFileName}.png"));
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// 修正 meta 中的 slotIndex 为手动档编号
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var meta = LoadMeta(manualSlotIndex);
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if (meta != null)
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{
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meta.slotIndex = manualSlotIndex;
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WriteMeta(manualSlotIndex, meta);
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}
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SetLatestSlotIndex(manualSlotIndex);
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CloudSaveManager.OnSlotWritten(manualSlotIndex);
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Debug.Log($"[SlotManager] 已复制自动档到手动槽位 {manualSlotIndex}。");
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}
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/// <summary>删除指定槽位。</summary>
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public static void DeleteSlot(int slotIndex)
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{
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EnsureMigrated();
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if (slotIndex == SlotIndex.Auto)
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{
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// 自动档只清空内容，不删除目录
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DeleteSlotFiles(slotIndex);
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Debug.Log("[SlotManager] 已清空自动档。");
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return;
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}
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if (slotIndex < SlotIndex.ManualStart || slotIndex > SlotIndex.ManualEnd)
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{
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Debug.LogError($"[SlotManager] 槽位编号非法: {slotIndex}");
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return;
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}
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var dir = SlotDirectory.GetSlotPath(slotIndex);
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if (Directory.Exists(dir))
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{
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Directory.Delete(dir, recursive: true);
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Debug.Log($"[SlotManager] 已删除槽位 {slotIndex}。");
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}
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CloudSaveManager.OnSlotWritten(slotIndex);
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}
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/// <summary>读取槽位的完整快照。</summary>
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public static SaveSnapshot LoadSnapshot(int slotIndex)
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{
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EnsureMigrated();
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var path = SlotDirectory.GetSnapshotPath(slotIndex);
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if (!File.Exists(path))
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{
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return null;
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}
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try
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{
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var json = File.ReadAllText(path);
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return SnapshotPersistence.Deserialize(json);
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}
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catch (Exception ex)
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{
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Debug.LogError($"[SlotManager] 读取槽位 {slotIndex} 快照失败: {ex.Message}");
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return null;
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}
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}
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/// <summary>读取槽位元数据。</summary>
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public static SlotMeta LoadMeta(int slotIndex)
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{
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var path = SlotDirectory.GetMetaPath(slotIndex);
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if (!File.Exists(path))
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{
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return null;
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}
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try
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{
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var json = File.ReadAllText(path);
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return JsonConvert.DeserializeObject<SlotMeta>(json);
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}
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catch (Exception ex)
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{
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Debug.LogWarning($"[SlotManager] 读取槽位 {slotIndex} meta 失败: {ex.Message}");
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return null;
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}
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}
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/// <summary>读取槽位缩略图字节。</summary>
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public static byte[] LoadThumbnail(int slotIndex)
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{
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var path = SlotDirectory.GetThumbnailPath(slotIndex);
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if (!File.Exists(path))
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{
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return null;
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}
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try
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{
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return File.ReadAllBytes(path);
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}
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catch (Exception ex)
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{
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Debug.LogWarning($"[SlotManager] 读取槽位 {slotIndex} 缩略图失败: {ex.Message}");
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return null;
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}
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}
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/// <summary>获取最近写入的槽位编号；不存在返回 null。</summary>
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public static int? GetLatestSlotIndex()
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{
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EnsureMigrated();
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var path = SlotDirectory.GetLatestSlotIndexPath();
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if (!File.Exists(path))
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{
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return null;
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}
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try
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{
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var json = File.ReadAllText(path);
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var record = JsonConvert.DeserializeObject<LatestSlotRecord>(json);
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if (record != null && SlotDirectory.Exists(record.latestSlot))
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{
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return record.latestSlot;
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}
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}
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catch (Exception ex)
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{
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Debug.LogWarning($"[SlotManager] 读取 latest_slot 失败: {ex.Message}");
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}
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return null;
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}
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/// <summary>更新最近写入槽位索引。</summary>
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public static void SetLatestSlotIndex(int slotIndex)
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{
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var record = new LatestSlotRecord
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{
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latestSlot = slotIndex,
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updatedAt = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")
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};
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SlotAtomicWriter.WriteJson(record, SlotDirectory.GetLatestSlotIndexPath());
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}
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/// <summary>获取供 UI 展示的全部槽位视图模型。</summary>
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public static SlotViewModel[] GetSlotViewModels()
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{
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EnsureMigrated();
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var result = new List<SlotViewModel>();
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for (var i = SlotIndex.Auto; i <= SlotIndex.ManualEnd; i++)
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{
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result.Add(BuildViewModel(i));
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}
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return result.ToArray();
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}
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#region Private Helpers
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private static void WriteSlot(int slotIndex, SaveSnapshot snapshot, byte[] thumbnailPng)
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{
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var json = SnapshotPersistence.Serialize(snapshot);
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var meta = BuildSlotMeta(slotIndex, snapshot);
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WriteSlotFiles(slotIndex, json, meta, thumbnailPng);
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}
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private static SlotMeta BuildSlotMeta(int slotIndex, SaveSnapshot snapshot)
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{
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var summary = SaveSnapshotSummary.From(snapshot);
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return new SlotMeta
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{
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slotIndex = slotIndex,
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savedAt = snapshot.savedAt,
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sceneName = summary.SceneName,
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sceneSoName = summary.SceneSoName,
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yarnProjectId = summary.YarnProjectId,
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nodeName = snapshot.anchor?.nodeName,
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schemaVersion = snapshot.schemaVersion,
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gameVersion = snapshot.gameVersion,
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thumbnailFile = $"{ConstRef.SaveThumbnailFileName}.png"
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};
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}
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private static void WriteSlotFiles(int slotIndex, string json, SlotMeta meta, byte[] thumbnailPng)
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{
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lock (SlotWriteLock)
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{
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SlotDirectory.EnsureSlotDirectory(slotIndex);
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SlotAtomicWriter.WriteText(json, SlotDirectory.GetSnapshotPath(slotIndex));
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SlotAtomicWriter.WriteJson(meta, SlotDirectory.GetMetaPath(slotIndex));
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if (thumbnailPng != null)
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{
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SlotAtomicWriter.WriteBytes(thumbnailPng, SlotDirectory.GetThumbnailPath(slotIndex));
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}
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}
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}
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private static void WriteMeta(int slotIndex, SlotMeta meta)
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{
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SlotAtomicWriter.WriteJson(meta, SlotDirectory.GetMetaPath(slotIndex));
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}
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private static void CopyFileIfExists(string sourcePath, string targetPath)
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{
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if (!File.Exists(sourcePath))
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{
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return;
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}
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var dir = Path.GetDirectoryName(targetPath);
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if (!string.IsNullOrEmpty(dir))
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{
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Directory.CreateDirectory(dir);
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}
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File.Copy(sourcePath, targetPath, overwrite: true);
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}
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private static void DeleteSlotFiles(int slotIndex)
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{
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var dir = SlotDirectory.GetSlotPath(slotIndex);
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if (!Directory.Exists(dir))
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{
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return;
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}
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foreach (var file in Directory.GetFiles(dir))
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{
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File.Delete(file);
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}
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}
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private static SlotViewModel BuildViewModel(int slotIndex)
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{
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var meta = LoadMeta(slotIndex);
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if (meta == null)
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{
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return new SlotViewModel(
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slotIndex,
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isEmpty: true,
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isAutoSlot: slotIndex == SlotIndex.Auto,
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savedAt: null,
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sceneName: null,
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sceneSoName: null,
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thumbnailPath: null);
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}
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var thumbnailPath = SlotDirectory.GetThumbnailPath(slotIndex);
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if (!File.Exists(thumbnailPath))
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{
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thumbnailPath = null;
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}
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return new SlotViewModel(
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slotIndex,
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isEmpty: false,
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isAutoSlot: slotIndex == SlotIndex.Auto,
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savedAt: meta.savedAt,
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sceneName: meta.sceneName,
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sceneSoName: meta.sceneSoName,
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thumbnailPath: thumbnailPath);
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}
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private static void EnsureMigrated()
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{
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if (_migrated)
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{
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return;
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}
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_migrated = true;
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TryMigrateP1TestSnapshot();
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}
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private static void TryMigrateP1TestSnapshot()
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{
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var testPath = Path.Combine(ConstRef.SnapshotTestPath, $"{ConstRef.SnapshotTestFileName}.json");
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if (!File.Exists(testPath))
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{
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return;
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}
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if (SlotDirectory.Exists(SlotIndex.Auto))
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{
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return;
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}
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try
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{
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var snapshot = SnapshotPersistence.Load(testPath);
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if (snapshot == null)
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{
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return;
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}
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SaveToAutoSlot(snapshot, null);
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var migratedPath = testPath + ".migrated";
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if (File.Exists(migratedPath))
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{
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File.Delete(migratedPath);
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}
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File.Move(testPath, migratedPath);
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Debug.Log($"[SlotManager] 已将 P1 测试存档从 {testPath} 迁移到 slot_0。");
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}
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catch (Exception ex)
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{
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Debug.LogWarning($"[SlotManager] P1 测试存档迁移失败: {ex.Message}");
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}
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}
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[Serializable]
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private class LatestSlotRecord
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{
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public int latestSlot;
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public string updatedAt;
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}
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#endregion
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}
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}
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