226 lines
9.6 KiB
TypeScript
226 lines
9.6 KiB
TypeScript
export interface EmailTemplateData {
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appName?: string
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userName?: string
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userEmail?: string
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timestamp?: string
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environment?: string
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[key: string]: any
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}
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export interface EmailTemplate {
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subject: string
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html: (data: EmailTemplateData) => string
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text: (data: EmailTemplateData) => string
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}
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const baseStyles = {
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container: 'font-family: Arial, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px;',
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header: 'background: linear-gradient(135deg, #000000 0%, #374151 100%); color: white; padding: 30px; border-radius: 10px 10px 0 0; text-align: center;',
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content: 'background: white; padding: 30px; border: 1px solid #e5e7eb; border-top: none; border-radius: 0 0 10px 10px;',
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footer: 'text-align: center; margin-top: 20px; color: #9ca3af; font-size: 12px;',
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infoBox: 'background: #f3f4f6; border-left: 4px solid #000000; padding: 15px; margin: 20px 0; border-radius: 0 5px 5px 0;',
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button: 'background: #000000; color: white; padding: 12px 24px; text-decoration: none; border-radius: 5px; display: inline-block;'
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}
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function buildEmailTemplate(
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subject: string,
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htmlContent: (data: EmailTemplateData) => string,
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textContent: (data: EmailTemplateData) => string
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): EmailTemplate {
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return {
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subject,
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html: (data: EmailTemplateData) => `
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<div style="${baseStyles.container}">
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<div style="${baseStyles.header}">
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<h1 style="margin: 0; font-size: 24px;">${data.appName || 'App'}</h1>
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<p style="margin: 10px 0 0 0; opacity: 0.9;">${subject}</p>
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</div>
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<div style="${baseStyles.content}">
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${htmlContent(data)}
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</div>
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</div>
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`,
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text: textContent
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}
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}
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export const testEmailTemplate: EmailTemplate = buildEmailTemplate(
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'Test Email',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Hello ${data.userName || 'User'}!</h2>
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<p style="color: #666; line-height: 1.6;">
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This is a test email from ${data.appName || 'the application'}. If you're receiving this,
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the email system is working correctly.
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</p>
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<div style="${baseStyles.infoBox}">
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<h3 style="margin: 0 0 10px 0; color: #333;">Email Details:</h3>
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<ul style="margin: 0; color: #666;">
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<li><strong>Sent to:</strong> ${data.userEmail || 'Unknown'}</li>
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<li><strong>Timestamp:</strong> ${data.timestamp || 'Unknown'}</li>
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<li><strong>Environment:</strong> ${data.environment || 'Unknown'}</li>
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</ul>
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</div>
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`,
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(data) => `Test Email from ${data.appName || 'App'}\n\nHello ${data.userName || 'User'}!\n\nThis is a test email. The email system is working correctly.\n\nSent to: ${data.userEmail || 'Unknown'}\nTimestamp: ${data.timestamp || 'Unknown'}\nEnvironment: ${data.environment || 'Unknown'}`
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)
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export const welcomeEmailTemplate: EmailTemplate = buildEmailTemplate(
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'Welcome!',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Welcome ${data.userName || 'User'}!</h2>
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<p style="color: #666; line-height: 1.6;">
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Thank you for joining ${data.appName || 'us'}! We're excited to have you on board.
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</p>
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<p style="color: #666; line-height: 1.6;">
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If you have any questions or run into any issues, don't hesitate to reach out.
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</p>
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`,
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(data) => `Welcome to ${data.appName || 'App'}!\n\nHello ${data.userName || 'User'}!\n\nThank you for joining. We're excited to have you on board.`
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)
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export const notificationEmailTemplate: EmailTemplate = buildEmailTemplate(
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'New Notification',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Hello ${data.userName || 'User'}!</h2>
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<p style="color: #666; line-height: 1.6;">
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You have a new notification from ${data.appName || 'the application'}.
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</p>
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<div style="${baseStyles.infoBox}">
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<p style="margin: 0; color: #666;">${data.message || 'No message provided'}</p>
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</div>
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${data.actionUrl ? `
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<div style="text-align: center; margin-top: 30px;">
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<a href="${data.actionUrl}" style="${baseStyles.button}">
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${data.actionText || 'View Details'}
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</a>
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</div>
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` : ''}
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`,
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(data) => `New Notification from ${data.appName || 'App'}\n\nHello ${data.userName || 'User'}!\n\n${data.message || 'No message provided'}\n\n${data.actionUrl ? `${data.actionText || 'View Details'}: ${data.actionUrl}` : ''}`
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)
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export const bulkEmailTemplate: EmailTemplate = buildEmailTemplate(
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'Admin Message',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Hello ${data.userName || 'User'}!</h2>
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<div style="color: #666; line-height: 1.6;">
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${data.message || 'No message provided'}
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</div>
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${data.actionUrl ? `
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<div style="text-align: center; margin-top: 30px;">
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<a href="${data.actionUrl}" style="${baseStyles.button}">
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${data.actionText || 'Learn More'}
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</a>
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</div>
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` : ''}
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`,
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(data) => `Admin Message from ${data.appName || 'App'}\n\nHello ${data.userName || 'User'}!\n\n${data.message || 'No message provided'}`
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)
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export const verificationEmailTemplate: EmailTemplate = buildEmailTemplate(
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'Verify Your Email Address',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Hello ${data.userName || 'User'}!</h2>
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<p style="color: #666; line-height: 1.6;">
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Thank you for registering with ${data.appName || 'us'}! To complete your registration,
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please verify your email address by clicking the button below.
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</p>
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<div style="text-align: center; margin-top: 30px;">
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<a href="${data.verificationUrl || '#'}" style="${baseStyles.button}">
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Verify Email Address
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</a>
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</div>
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<p style="color: #666; line-height: 1.6; margin-top: 20px; font-size: 14px;">
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If the button doesn't work, copy and paste this link into your browser:
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<br>
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<a href="${data.verificationUrl || '#'}" style="color: #000000; text-decoration: underline; word-break: break-all;">
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${data.verificationUrl || '#'}
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</a>
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</p>
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<p style="color: #666; line-height: 1.6; margin-top: 20px; font-size: 14px;">
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This link will expire in 24 hours. If you didn't create an account,
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you can safely ignore this email.
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</p>
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`,
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(data) => `Verify Your Email Address - ${data.appName || 'App'}\n\nHello ${data.userName || 'User'}!\n\nPlease verify your email by visiting:\n\n${data.verificationUrl || '#'}\n\nThis link will expire in 24 hours.`
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)
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export const emailChangeVerificationTemplate: EmailTemplate = buildEmailTemplate(
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'Confirm Your New Email Address',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Hello ${data.userName || 'User'}!</h2>
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<p style="color: #666; line-height: 1.6;">
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You requested to change your email address from <strong>${data.oldEmail || 'your current email'}</strong>
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to <strong>${data.newEmail || 'a new email'}</strong>.
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</p>
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<div style="text-align: center; margin-top: 30px;">
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<a href="${data.verificationUrl || '#'}" style="${baseStyles.button}">
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Confirm Email Change
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</a>
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</div>
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<p style="color: #666; line-height: 1.6; margin-top: 20px; font-size: 14px;">
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If the button doesn't work, copy and paste this link into your browser:
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<br>
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<a href="${data.verificationUrl || '#'}" style="color: #000000; text-decoration: underline; word-break: break-all;">
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${data.verificationUrl || '#'}
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</a>
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</p>
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<p style="color: #666; line-height: 1.6; margin-top: 20px; font-size: 14px;">
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This link will expire in 24 hours. If you didn't request this change,
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you can safely ignore this email.
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</p>
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`,
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(data) => `Confirm Your New Email Address - ${data.appName || 'App'}\n\nHello ${data.userName || 'User'}!\n\nYou requested to change your email from ${data.oldEmail} to ${data.newEmail}.\n\nConfirm: ${data.verificationUrl || '#'}\n\nThis link will expire in 24 hours.`
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)
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export const passwordResetEmailTemplate: EmailTemplate = buildEmailTemplate(
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'Reset Your Password',
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(data) => `
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<h2 style="color: #333; margin-top: 0;">Hello ${data.userName || 'User'}!</h2>
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<p style="color: #666; line-height: 1.6;">
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You requested to reset your password for your ${data.appName || ''} account.
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</p>
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<div style="text-align: center; margin-top: 30px;">
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<a href="${data.resetUrl || '#'}" style="${baseStyles.button}">
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Reset Password
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</a>
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</div>
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<p style="color: #666; line-height: 1.6; margin-top: 20px; font-size: 14px;">
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If the button doesn't work, copy and paste this link into your browser:
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<br>
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<a href="${data.resetUrl || '#'}" style="color: #000000; text-decoration: underline; word-break: break-all;">
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${data.resetUrl || '#'}
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</a>
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</p>
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<p style="color: #666; line-height: 1.6; margin-top: 20px; font-size: 14px;">
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This link will expire in 1 hour. If you didn't request a password reset,
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you can safely ignore this email.
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</p>
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`,
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(data) => `Reset Your Password - ${data.appName || 'App'}\n\nHello ${data.userName || 'User'}!\n\nReset your password: ${data.resetUrl || '#'}\n\nThis link will expire in 1 hour.`
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)
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export const emailTemplates = {
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test: testEmailTemplate,
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welcome: welcomeEmailTemplate,
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notification: notificationEmailTemplate,
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bulk: bulkEmailTemplate,
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verification: verificationEmailTemplate,
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emailChangeVerification: emailChangeVerificationTemplate,
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passwordReset: passwordResetEmailTemplate
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}
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export function renderEmailTemplate(
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templateName: keyof typeof emailTemplates,
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data: EmailTemplateData
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): { subject: string; html: string; text: string } {
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const template = emailTemplates[templateName]
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if (!template) {
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throw new Error(`Email template '${templateName}' not found`)
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}
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return {
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subject: template.subject,
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html: template.html(data),
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text: template.text(data)
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}
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}
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