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import nodemailer from 'nodemailer';
import handlebars from 'handlebars';
import fs from 'fs';
import path from 'path';
import i18next from 'i18next';
// Nodemailer Transporter 생성
const transporter = nodemailer.createTransport({
host: process.env.Email_Host,
port: parseInt(process.env.Email_Port || '465'),
secure: process.env.Email_Secure === 'true',
auth: {
user: process.env.Email_User_Name,
pass: process.env.Email_Password,
},
});
// 헬퍼 함수들 등록
function registerHandlebarsHelpers() {
// i18next 헬퍼 등록
handlebars.registerHelper('t', function(key: string, options: { hash?: Record<string, unknown> }) {
// options.hash에는 Handlebars에서 넘긴 named parameter들이 들어있음
return i18next.t(key, options.hash || {});
});
// eq 헬퍼 등록 - 두 값을 비교 (블록 헬퍼)
handlebars.registerHelper('eq', function(a: any, b: any, options: any) {
if (a === b) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
// 기타 유용한 헬퍼들
handlebars.registerHelper('ne', function(a: any, b: any, options: any) {
if (a !== b) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
handlebars.registerHelper('gt', function(a: any, b: any, options: any) {
if (a > b) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
handlebars.registerHelper('gte', function(a: any, b: any, options: any) {
if (a >= b) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
handlebars.registerHelper('lt', function(a: any, b: any, options: any) {
if (a < b) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
handlebars.registerHelper('lte', function(a: any, b: any, options: any) {
if (a <= b) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
// and 헬퍼 - 모든 조건이 true인지 확인 (블록 헬퍼)
handlebars.registerHelper('and', function(...args: any[]) {
// 마지막 인자는 Handlebars 옵션
const options = args[args.length - 1];
const values = args.slice(0, -1);
if (values.every(Boolean)) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
// or 헬퍼 - 하나라도 true인지 확인 (블록 헬퍼)
handlebars.registerHelper('or', function(...args: any[]) {
// 마지막 인자는 Handlebars 옵션
const options = args[args.length - 1];
const values = args.slice(0, -1);
if (values.some(Boolean)) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
// not 헬퍼 - 값 반전 (블록 헬퍼)
handlebars.registerHelper('not', function(value: any, options: any) {
if (!value) {
return options.fn(this);
} else {
return options.inverse(this);
}
});
// formatDate 헬퍼 - 날짜 포맷팅
handlebars.registerHelper('formatDate', function(date: string | Date, format: string = 'YYYY-MM-DD') {
if (!date) return '';
const dateObj = new Date(date);
if (isNaN(dateObj.getTime())) return '';
// 간단한 날짜 포맷팅 (더 복잡한 경우 moment.js나 date-fns 사용)
const year = dateObj.getFullYear();
const month = String(dateObj.getMonth() + 1).padStart(2, '0');
const day = String(dateObj.getDate()).padStart(2, '0');
return format
.replace('YYYY', String(year))
.replace('MM', month)
.replace('DD', day);
});
// formatNumber 헬퍼 - 숫자 포맷팅
handlebars.registerHelper('formatNumber', function(number: number, locale: string = 'ko-KR') {
if (typeof number !== 'number') return number;
return new Intl.NumberFormat(locale).format(number);
});
}
// 헬퍼 등록 실행
registerHandlebarsHelpers();
// 템플릿 로더 함수
function loadTemplate(templateName: string, data: Record<string, unknown>) {
const templatePath = path.join(process.cwd(), 'lib', 'mail', 'templates', `${templateName}.hbs`);
if (!fs.existsSync(templatePath)) {
throw new Error(`Template not found: ${templatePath}`);
}
const source = fs.readFileSync(templatePath, 'utf8');
const template = handlebars.compile(source);
return template(data);
}
export { transporter, loadTemplate };
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