export class DraftGenerator {
static templates = [
{
name: 'meeting_request',
subject: 'Meeting Request - {topic}',
body: `Hello,
I would like to invite you to a meeting regarding {topic}.
Meeting Details:
- Date: {date}
- Time: {time}
- Location: {location}
- Duration: {duration}
Agenda:
{agenda}
Please confirm your availability. If you have any conflicts, please let me know your preferred time.
Thank you!
Best regards,
{sender}`,
category: 'meeting'
},
{
name: 'follow_up',
subject: 'Follow-up - {topic}',
body: `Hello,
I wanted to follow up on our previous discussion about {topic}.
{details}
Please let me know if you have any questions or if there's anything else I can help with.
Best regards,
{sender}`,
category: 'follow_up'
},
{
name: 'thank_you',
subject: 'Thank you - {topic}',
body: `Hello,
Thank you for your help and support with {topic}.
{details}
Your assistance is greatly appreciated.
Best regards,
{sender}`,
category: 'thank_you'
},
{
name: 'status_update',
subject: 'Status Update - {project}',
body: `Hello,
Here's a status update on {project}.
Current Progress:
{progress}
Next Steps:
{next_steps}
Please let me know if you have any questions or concerns.
Best regards,
{sender}`,
category: 'update'
}
];
static generateDraft(templateName, variables, recipients) {
const template = this.templates.find(t => t.name === templateName);
if (!template) {
throw new Error(`Template '${templateName}' not found`);
}
const subject = this.replaceVariables(template.subject, variables);
const body = this.replaceVariables(template.body, variables);
return {
to: recipients,
subject,
body,
isHtml: false
};
}
static generateReplyDraft(originalSubject, originalBody, replyType, customMessage) {
let subject = originalSubject;
if (!subject.toLowerCase().startsWith('re:')) {
subject = `Re: ${subject}`;
}
let body = '';
switch (replyType) {
case 'agree':
body = `您好，
谢谢您的邮件。我同意您的提议/建议。
${customMessage || ''}
请告知下一步的安排。
最好的问候`;
break;
case 'decline':
body = `您好，
谢谢您的邮件。很抱歉，我无法接受您的提议/建议。
${customMessage || ''}
如有其他方案，请随时联系我。
最好的问候`;
break;
case 'info_request':
body = `您好，
谢谢您的邮件。我需要更多信息来做出决定。
${customMessage || '请提供更多详细信息。'}
期待您的回复。
最好的问候`;
break;
case 'custom':
body = customMessage || '';
break;
}
// Add original email reference
body += `\n\n---\n原始邮件:\n${this.formatOriginalEmail(originalBody)}`;
return {
to: [],
subject,
body,
isHtml: false
};
}
static generateSmartDraft(context, intent, recipients) {
const intents = {
'schedule_meeting': {
subject: '会议安排请求',
body: `您好，
我想安排一个会议讨论以下事项：
${context}
请告知您方便的时间，我会发送正式的会议邀请。
最好的问候`
},
'request_information': {
subject: '信息请求',
body: `您好，
我需要了解以下信息：
${context}
如果您能提供相关信息，我将不胜感激。
最好的问候`
},
'project_update': {
subject: '项目更新',
body: `您好，
这是项目的最新更新：
${context}
如有问题或需要讨论的地方，请随时联系我。
最好的问候`
},
'general': {
subject: '邮件',
body: `您好，
${context}
最好的问候`
}
};
const template = intents[intent] || intents.general;
return {
to: recipients,
subject: template.subject,
body: template.body,
isHtml: false
};
}
static getAvailableTemplates() {
return this.templates;
}
static replaceVariables(text, variables) {
let result = text;
for (const [key, value] of Object.entries(variables)) {
result = result.replace(new RegExp(`\\{${key}\\}`, 'g'), value);
}
return result;
}
static formatOriginalEmail(originalBody) {
// Clean up the original email body and limit to first few lines
const cleanBody = originalBody
.replace(/<[^>]*>/g, '')
.replace(/\s+/g, ' ')
.trim();
const lines = cleanBody.split('\n').slice(0, 5);
return lines.join('\n') + (lines.length >= 5 ? '\n...' : '');
}
}
