Put v4 migrations in their own file

src/state/watched/migrations/v4.ts

@@ -0,0 +1,78 @@
+import { MWMediaType } from "@/backend/metadata/types/mw";
+import { ProgressMediaItem } from "@/stores/progress";
+
+import { WatchedStoreData } from "../types";
+
+export function migrateV4Videos(old: WatchedStoreData) {
+  // Convert items
+  const newItems: Record<string, ProgressMediaItem> = {};
+
+  for (const oldItem of old.items) {
+    if (oldItem.item.meta.type === MWMediaType.SERIES) {
+      // Upsert
+      if (!newItems[oldItem.item.meta.id]) {
+        newItems[oldItem.item.meta.id] = {
+          type: "show",
+          episodes: {},
+          seasons: {},
+          title: oldItem.item.meta.title,
+          updatedAt: oldItem.watchedAt,
+          poster: oldItem.item.meta.poster,
+          year: Number(oldItem.item.meta.year),
+        };
+      }
+
+      // Add episodes
+      if (
+        oldItem.item.series &&
+        !newItems[oldItem.item.meta.id].episodes[oldItem.item.series.episodeId]
+      ) {
+        // Find episode ID (barely ever works)
+        const episodeTitle = oldItem.item.meta.seasonData.episodes.find(
+          (ep) => ep.number === oldItem.item.series?.episode
+        )?.title;
+
+        // Add season to season data
+        newItems[oldItem.item.meta.id].seasons[oldItem.item.series.seasonId] = {
+          id: oldItem.item.series.seasonId,
+          number: oldItem.item.series.season,
+          title:
+            oldItem.item.meta.seasons.find(
+              (s) => s.number === oldItem.item.series?.season
+            )?.title || "Unknown season",
+        };
+
+        // Populate episode data
+        newItems[oldItem.item.meta.id].episodes[oldItem.item.series.episodeId] =
+          {
+            title: episodeTitle || "Unknown",
+            id: oldItem.item.series.episodeId,
+            number: oldItem.item.series.episode,
+            seasonId: oldItem.item.series.seasonId,
+            updatedAt: oldItem.watchedAt,
+            progress: {
+              duration: (100 / oldItem.percentage) * oldItem.progress,
+              watched: oldItem.progress,
+            },
+          };
+      }
+    } else {
+      newItems[oldItem.item.meta.id] = {
+        type: "movie",
+        episodes: {},
+        seasons: {},
+        title: oldItem.item.meta.title,
+        updatedAt: oldItem.watchedAt,
+        year: Number(oldItem.item.meta.year),
+        poster: oldItem.item.meta.poster,
+        progress: {
+          duration: (100 / oldItem.percentage) * oldItem.progress,
+          watched: oldItem.progress,
+        },
+      };
+    }
+  }
+
+  console.log(newItems);
+  return newItems;
+}

src/state/watched/store.ts

@@ -1,9 +1,9 @@
-import { MWMediaType } from "@/backend/metadata/types/mw";
-import { ProgressMediaItem, useProgressStore } from "@/stores/progress";
+import { useProgressStore } from "@/stores/progress";
 import { createVersionedStore } from "@/utils/storage";
 
 import { OldData, migrateV2Videos } from "./migrations/v2";
 import { migrateV3Videos } from "./migrations/v3";
+import { migrateV4Videos } from "./migrations/v4";
 import { WatchedStoreData } from "./types";
 
 export const VideoProgressStore = createVersionedStore<WatchedStoreData>()
@@ -31,84 +31,7 @@ export const VideoProgressStore = createVersionedStore<WatchedStoreData>()
   .addVersion({
     version: 3,
     migrate(old: WatchedStoreData): WatchedStoreData {
-      console.log(old);
-
-      // Convert items
-      const newItems: Record<string, ProgressMediaItem> = {};
-
-      for (const oldItem of old.items) {
-        if (oldItem.item.meta.type === MWMediaType.SERIES) {
-          // Upsert
-          if (!newItems[oldItem.item.meta.id]) {
-            newItems[oldItem.item.meta.id] = {
-              type: "show",
-              episodes: {},
-              seasons: {},
-              title: oldItem.item.meta.title,
-              updatedAt: oldItem.watchedAt,
-              poster: oldItem.item.meta.poster,
-              year: Number(oldItem.item.meta.year),
-            };
-          }
-
-          // Add episodes
-          if (
-            oldItem.item.series &&
-            !newItems[oldItem.item.meta.id].episodes[
-              oldItem.item.series.episodeId
-            ]
-          ) {
-            // Find episode ID (barely ever works)
-            const episodeTitle = oldItem.item.meta.seasonData.episodes.find(
-              (ep) => ep.number === oldItem.item.series?.episode
-            )?.title;
-
-            // Add season to season data
-            newItems[oldItem.item.meta.id].seasons[
-              oldItem.item.series.seasonId
-            ] = {
-              id: oldItem.item.series.seasonId,
-              number: oldItem.item.series.season,
-              title:
-                oldItem.item.meta.seasons.find(
-                  (s) => s.number === oldItem.item.series?.season
-                )?.title || "Unknown season",
-            };
-
-            // Populate episode data
-            newItems[oldItem.item.meta.id].episodes[
-              oldItem.item.series.episodeId
-            ] = {
-              title: episodeTitle || "Unknown",
-              id: oldItem.item.series.episodeId,
-              number: oldItem.item.series.episode,
-              seasonId: oldItem.item.series.seasonId,
-              updatedAt: oldItem.watchedAt,
-              progress: {
-                duration: (100 / oldItem.percentage) * oldItem.progress,
-                watched: oldItem.progress,
-              },
-            };
-          }
-        } else {
-          newItems[oldItem.item.meta.id] = {
-            type: "movie",
-            episodes: {},
-            seasons: {},
-            title: oldItem.item.meta.title,
-            updatedAt: oldItem.watchedAt,
-            year: Number(oldItem.item.meta.year),
-            poster: oldItem.item.meta.poster,
-            progress: {
-              duration: (100 / oldItem.percentage) * oldItem.progress,
-              watched: oldItem.progress,
-            },
-          };
-        }
-      }
-
-      console.log(newItems);
-      useProgressStore.getState().replaceItems(newItems);
+      useProgressStore.getState().replaceItems(migrateV4Videos(old));
 
       return {
         items: [],