Use object instead of if chain (#4212)

src/prelude/symbol.ts

@@ -0,0 +1 @@
+export const fallback = Symbol('fallback');

src/server/api/endpoints/admin/drive/files.ts

@@ -1,6 +1,7 @@
 import $ from 'cafy';
 import File, { packMany } from '../../../../../models/drive-file';
 import define from '../../../define';
+import { fallback } from '../../../../../prelude/symbol';
 
 export const meta = {
 	requireCredential: false,
@@ -37,32 +38,15 @@ export const meta = {
 	}
 };
 
-export default define(meta, (ps, me) => new Promise(async (res, rej) => {
+const sort: any = { // < https://github.com/Microsoft/TypeScript/issues/1863
-	let _sort;
+	'+createdAt': { uploadDate: -1 },
-	if (ps.sort) {
+	'-createdAt': { uploadDate: 1 },
-		if (ps.sort == '+createdAt') {
+	'+size': { length: -1 },
-			_sort = {
+	'-size': { length: 1 },
-				uploadDate: -1
+	[fallback]: { _id: -1 }
 };
-		} else if (ps.sort == '-createdAt') {
-			_sort = {
-				uploadDate: 1
-			};
-		} else if (ps.sort == '+size') {
-			_sort = {
-				length: -1
-			};
-		} else if (ps.sort == '-size') {
-			_sort = {
-				length: 1
-			};
-		}
-	} else {
-		_sort = {
-			_id: -1
-		};
-	}
 
+export default define(meta, (ps, me) => new Promise(async (res, rej) => {
 	const q = {
 		'metadata.deletedAt': { $exists: false },
 	} as any;
@@ -73,7 +57,7 @@ export default define(meta, (ps, me) => new Promise(async (res, rej) => {
 	const files = await File
 		.find(q, {
 			limit: ps.limit,
-			sort: _sort,
+			sort: sort[ps.sort] || sort[fallback],
 			skip: ps.offset
 		});
 

src/server/api/endpoints/admin/show-users.ts

@@ -1,6 +1,7 @@
 import $ from 'cafy';
 import User, { pack } from '../../../../models/user';
 import define from '../../define';
+import { fallback } from '../../../../prelude/symbol';
 
 export const meta = {
 	requireCredential: true,
@@ -52,40 +53,17 @@ export const meta = {
 	}
 };
 
-export default define(meta, (ps, me) => new Promise(async (res, rej) => {
+const sort: any = { // < https://github.com/Microsoft/TypeScript/issues/1863
-	let _sort;
+	'+follower': { followersCount: -1 },
-	if (ps.sort) {
+	'-follower': { followersCount: 1 },
-		if (ps.sort == '+follower') {
+	'+createdAt': { createdAt: -1 },
-			_sort = {
+	'-createdAt': { createdAt: 1 },
-				followersCount: -1
+	'+updatedAt': { updatedAt: -1 },
+	'-updatedAt': { updatedAt: 1 },
+	[fallback]: { _id: -1 }
 };
-		} else if (ps.sort == '-follower') {
-			_sort = {
-				followersCount: 1
-			};
-		} else if (ps.sort == '+createdAt') {
-			_sort = {
-				createdAt: -1
-			};
-		} else if (ps.sort == '+updatedAt') {
-			_sort = {
-				updatedAt: -1
-			};
-		} else if (ps.sort == '-createdAt') {
-			_sort = {
-				createdAt: 1
-			};
-		} else if (ps.sort == '-updatedAt') {
-			_sort = {
-				updatedAt: 1
-			};
-		}
-	} else {
-		_sort = {
-			_id: -1
-		};
-	}
 
+export default define(meta, (ps, me) => new Promise(async (res, rej) => {
 	const q = {
 		$and: []
 	} as any;
@@ -117,7 +95,7 @@ export default define(meta, (ps, me) => new Promise(async (res, rej) => {
 	const users = await User
 		.find(q, {
 			limit: ps.limit,
-			sort: _sort,
+			sort: sort[ps.sort] || sort[fallback],
 			skip: ps.offset
 		});
 

src/server/api/endpoints/users.ts

@@ -1,6 +1,9 @@
 import $ from 'cafy';
 import User, { pack } from '../../../models/user';
 import define from '../define';
+import { fallback } from '../../../prelude/symbol';
+
+const nonnull = { $ne: null };
 
 export const meta = {
 	requireCredential: false,
@@ -50,71 +53,48 @@ export const meta = {
 	}
 };
 
+const state: any = { // < https://github.com/Microsoft/TypeScript/issues/1863
+  'admin': { isAdmin: true },
+  'moderator': { isModerator: true },
+  'adminOrModerator': {
+    $or: [
+      { isAdmin: true },
+      { isModerator: true }
+    ]
+  },
+  'verified': { isVerified: true },
+  'alive': {
+    updatedAt: { $gt: new Date(Date.now() - 1000 * 60 * 60 * 24 * 5) }
+  },
+  [fallback]: {}
+};
+
+const origin: any = { // < https://github.com/Microsoft/TypeScript/issues/1863
+  'local': { host: null },
+  'remote': { host: nonnull },
+  [fallback]: {}
+};
+
+const sort: any = { // < https://github.com/Microsoft/TypeScript/issues/1863
+	'+follower': { followersCount: -1 },
+	'-follower': { followersCount: 1 },
+	'+createdAt': { createdAt: -1 },
+	'-createdAt': { createdAt: 1 },
+	'+updatedAt': { updatedAt: -1 },
+	'-updatedAt': { updatedAt: 1 },
+	[fallback]: { _id: -1 }
+};
+
 export default define(meta, (ps, me) => new Promise(async (res, rej) => {
-	let _sort;
-	if (ps.sort) {
-		if (ps.sort == '+follower') {
-			_sort = {
-				followersCount: -1
-			};
-		} else if (ps.sort == '-follower') {
-			_sort = {
-				followersCount: 1
-			};
-		} else if (ps.sort == '+createdAt') {
-			_sort = {
-				createdAt: -1
-			};
-		} else if (ps.sort == '+updatedAt') {
-			_sort = {
-				updatedAt: -1
-			};
-		} else if (ps.sort == '-createdAt') {
-			_sort = {
-				createdAt: 1
-			};
-		} else if (ps.sort == '-updatedAt') {
-			_sort = {
-				updatedAt: 1
-			};
-		}
-	} else {
-		_sort = {
-			_id: -1
-		};
-	}
-
-	const q = {
-		$and: []
-	} as any;
-
-	// state
-	q.$and.push(
-		ps.state == 'admin' ? { isAdmin: true } :
-		ps.state == 'moderator' ? { isModerator: true } :
-		ps.state == 'adminOrModerator' ? {
-			$or: [{
-				isAdmin: true
-			}, {
-				isModerator: true
-			}]
-		} :
-		ps.state == 'verified' ? { isVerified: true } :
-		ps.state == 'alive' ? { updatedAt: { $gt: new Date(Date.now() - (1000 * 60 * 60 * 24 * 5)) } } :
-		{}
-	);
-
-	// origin
-	q.$and.push(
-		ps.origin == 'local' ? { host: null } :
-		ps.origin == 'remote' ? { host: { $ne: null } } :
-		{}
-	);
-
 	const users = await User
-		.find(q, {
+		.find({
+      $and: [
+        state[ps.state] || state[fallback],
+        origin[ps.origin] || origin[fallback]
+      ]
+    }, {
 			limit: ps.limit,
-			sort: _sort,
+			sort: sort[ps.sort] || sort[fallback],
 			skip: ps.offset
 		});