wip

src/common/functions/format.ts

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+import { config } from '../../config';
+import { User } from '../../backend/models/entities/user';
+import { Score } from '../types/score';
+import { defaultTemplate } from '../../backend/const';
+import { IUser } from '../types/user';
+
+/**
+ * 埋め込み変数の型
+ */
+export type Variable = {
+	replace?: string | ((score: Score, user: User) => string);
+};
+
+/**
+ * 埋め込み可能な変数のリスト
+ */
+export const variables: Record<string, Variable> = {
+	notesCount: {
+		replace: (score) => String(score.notesCount),
+	},
+	followingCount: {
+		replace: (score) => String(score.followingCount),
+	},
+	followersCount: {
+		replace: (score) => String(score.followersCount),
+	},
+	notesDelta: {
+		replace: (score) => String(score.notesDelta),
+	},
+	followingDelta: {
+		replace: (score) => String(score.followingDelta),
+	},
+	followersDelta: {
+		replace: (score) => String(score.followersDelta),
+	},
+	url: {
+		replace: config.url,
+	},
+	username: {
+		replace: (_, user) => String(user.username),
+	},
+	host: {
+		replace: (_, user) => String(user.host),
+	},
+	rating: {
+		replace: (_, user) => String(user.rating),
+	},
+};
+
+const variableRegex = /\{([a-zA-Z0-9_]+?)\}/g;
+
+/**
+ * スコア情報とユーザー情報からテキストを生成する
+ * @param score スコア情報
+ * @param user ユーザー情報
+ * @returns 生成したテキスト
+ */
+export const format = (score: Score, user: IUser): string => {
+	const template = user.template || defaultTemplate;
+	return template.replace(variableRegex, (m, name) => {
+		const v = variables[name];
+		return !v || !v.replace ? m : typeof v.replace === 'function' ? v.replace(score, user) : v.replace;
+	}) + '\n\n#misshaialert';
+};