릴리스: v0.1.17 티어표 삭제와 미사용 이미지 정리 추가

backend/src/db.js

@@ -404,25 +404,38 @@ async function createCustomItem({ id, ownerId, src, label }) {
   return { id, ownerId, src, label, origin: 'custom', createdAt }
 }
 
-async function listCustomItems({ queryText = '', page = 1, limit = 50 } = {}) {
+async function getCustomItemUsageMap() {
+  const rows = await query('SELECT groups_json, pool_json FROM tierlists')
+  const usageMap = new Map()
+
+  rows.forEach((row) => {
+    const groups = parseJson(row.groups_json, [])
+    const pool = parseJson(row.pool_json, [])
+
+    groups.forEach((group) => {
+      ;(group?.itemIds || []).forEach((itemId) => {
+        usageMap.set(itemId, (usageMap.get(itemId) || 0) + 1)
+      })
+    })
+
+    pool.forEach((item) => {
+      if (item?.id) {
+        usageMap.set(item.id, (usageMap.get(item.id) || 0) + 1)
+      }
+    })
+  })
+
+  return usageMap
+}
+
+async function listCustomItems({ queryText = '', page = 1, limit = 50, orphanOnly = false } = {}) {
   const normalizedLimit = Math.min(Math.max(Number(limit) || 50, 1), 200)
   const normalizedPage = Math.max(Number(page) || 1, 1)
-  const offset = (normalizedPage - 1) * normalizedLimit
   const hasQuery = !!(queryText || '').trim()
   const search = `%${(queryText || '').trim()}%`
   const whereClause = hasQuery ? 'WHERE c.label LIKE ? OR c.src LIKE ? OR u.email LIKE ? OR u.nickname LIKE ?' : ''
   const params = hasQuery ? [search, search, search, search] : []
 
-  const countRows = await query(
-    `
-      SELECT COUNT(*) AS count
-      FROM custom_items c
-      INNER JOIN users u ON u.id = c.owner_id
-      ${whereClause}
-    `,
-    params
-  )
-
   const rows = await query(
     `
       SELECT
@@ -437,13 +450,13 @@ async function listCustomItems({ queryText = '', page = 1, limit = 50 } = {}) {
       INNER JOIN users u ON u.id = c.owner_id
       ${whereClause}
       ORDER BY c.created_at DESC
-      LIMIT ? OFFSET ?
     `,
-    [...params, normalizedLimit, offset]
+    params
   )
 
-  return {
-    items: rows.map((row) => ({
+  const usageMap = await getCustomItemUsageMap()
+  const allItems = rows
+    .map((row) => ({
       id: row.id,
       ownerId: row.owner_id,
       src: row.src,
@@ -451,13 +464,61 @@ async function listCustomItems({ queryText = '', page = 1, limit = 50 } = {}) {
       createdAt: Number(row.created_at),
       ownerName: row.nickname || row.email,
       ownerEmail: row.email,
-    })),
-    total: Number(countRows[0]?.count || 0),
+      usageCount: usageMap.get(row.id) || 0,
+    }))
+    .filter((item) => (orphanOnly ? item.usageCount === 0 : true))
+
+  const total = allItems.length
+  const offset = (normalizedPage - 1) * normalizedLimit
+  const pagedItems = allItems.slice(offset, offset + normalizedLimit)
+
+  return {
+    items: pagedItems,
+    total,
     page: normalizedPage,
     limit: normalizedLimit,
   }
 }
 
+async function findUnusedCustomItems({ queryText = '' } = {}) {
+  const hasQuery = !!(queryText || '').trim()
+  const search = `%${(queryText || '').trim()}%`
+  const whereClause = hasQuery ? 'WHERE c.label LIKE ? OR c.src LIKE ? OR u.email LIKE ? OR u.nickname LIKE ?' : ''
+  const params = hasQuery ? [search, search, search, search] : []
+
+  const rows = await query(
+    `
+      SELECT
+        c.id,
+        c.owner_id,
+        c.src,
+        c.label,
+        c.created_at,
+        u.nickname,
+        u.email
+      FROM custom_items c
+      INNER JOIN users u ON u.id = c.owner_id
+      ${whereClause}
+      ORDER BY c.created_at DESC
+    `,
+    params
+  )
+
+  const usageMap = await getCustomItemUsageMap()
+  return rows
+    .map((row) => ({
+      id: row.id,
+      ownerId: row.owner_id,
+      src: row.src,
+      label: row.label,
+      createdAt: Number(row.created_at),
+      ownerName: row.nickname || row.email,
+      ownerEmail: row.email,
+      usageCount: usageMap.get(row.id) || 0,
+    }))
+    .filter((item) => item.usageCount === 0)
+}
+
 async function listPublicTierLists(gameId) {
   const params = []
   let whereClause = 'WHERE t.is_public = 1'
@@ -531,6 +592,37 @@ async function findTierListById(id) {
   return mapTierListRow(rows[0])
 }
 
+async function deleteTierList(id) {
+  await query('DELETE FROM tierlists WHERE id = ?', [id])
+}
+
+async function findCustomItemsByIds(ids) {
+  if (!ids.length) return []
+  const placeholders = ids.map(() => '?').join(', ')
+  const rows = await query(
+    `
+      SELECT id, owner_id, src, label, created_at
+      FROM custom_items
+      WHERE id IN (${placeholders})
+    `,
+    ids
+  )
+
+  return rows.map((row) => ({
+    id: row.id,
+    ownerId: row.owner_id,
+    src: row.src,
+    label: row.label,
+    createdAt: Number(row.created_at),
+  }))
+}
+
+async function deleteCustomItems(ids) {
+  if (!ids.length) return
+  const placeholders = ids.map(() => '?').join(', ')
+  await query(`DELETE FROM custom_items WHERE id IN (${placeholders})`, ids)
+}
+
 async function saveTierList({ id, authorId, gameId, title, description, isPublic, groups, pool }) {
   const existing = id ? await findTierListById(id) : null
 
@@ -582,8 +674,12 @@ module.exports = {
   deleteGame,
   createCustomItem,
   listCustomItems,
+  findUnusedCustomItems,
   listPublicTierLists,
   listUserTierLists,
   findTierListById,
+  deleteTierList,
+  findCustomItemsByIds,
+  deleteCustomItems,
   saveTierList,
 }