cover/Elixir.DaProductApp.Partners.EmailService.html

1 defmodule DaProductApp.Partners.EmailService do
2 @moduledoc """
3 Service for sending API credential emails to partners.
4 Uses Swoosh for email delivery with professional templates.
5 """
6
7 import Swoosh.Email
8 alias DaProductApp.Mailer
9 alias DaProductApp.Partners.Partner
10
11 @from_email "noreply@mercurypay.com"
12 @support_email "support@mercurypay.com"
13
14 @doc """
15 Sends API credentials to partner contact email.
16 """
17 def send_api_credentials(%Partner{} = partner, credentials, admin_user) do
18 
:-(
 email =
19 new()
20 
:-(
 |> to(partner.contact_email)
21 |> from(@from_email)
22 |> subject("Your Mercury UPI PSP API Credentials")
23 |> html_body(credentials_html_template(partner, credentials, admin_user))
24 |> text_body(credentials_text_template(partner, credentials, admin_user))
25
26 
:-(
 case Mailer.deliver(email) do
27 
:-(
 {:ok, _email} ->
28 
:-(
 {:ok, "API credentials sent successfully to #{partner.contact_email}"}
29
30 
:-(
 {:error, reason} ->
31 {:error, "Failed to send email: #{inspect(reason)}"}
32 end
33 end
34
35 @doc """
36 Sends API key revocation notification.
37 """
38 def send_revocation_notice(%Partner{} = partner, admin_user) do
39 
:-(
 email =
40 new()
41 
:-(
 |> to(partner.contact_email)
42 |> from(@from_email)
43 |> subject("Mercury UPI PSP API Access Revoked")
44 |> html_body(revocation_html_template(partner, admin_user))
45 |> text_body(revocation_text_template(partner, admin_user))
46
47 
:-(
 case Mailer.deliver(email) do
48 
:-(
 {:ok, _email} ->
49 
:-(
 {:ok, "Revocation notice sent successfully to #{partner.contact_email}"}
50
51 
:-(
 {:error, reason} ->
52 {:error, "Failed to send email: #{inspect(reason)}"}
53 end
54 end
55
56 @doc """
57 Sends API key expiration warning.
58 """
59 def send_expiration_warning(%Partner{} = partner, days_remaining) do
60 
:-(
 email =
61 new()
62 
:-(
 |> to(partner.contact_email)
63 |> from(@from_email)
64 |> subject("Mercury UPI PSP API Key Expiring Soon")
65 |> html_body(expiration_warning_html_template(partner, days_remaining))
66 |> text_body(expiration_warning_text_template(partner, days_remaining))
67
68 
:-(
 case Mailer.deliver(email) do
69 
:-(
 {:ok, _email} ->
70 
:-(
 {:ok, "Expiration warning sent successfully to #{partner.contact_email}"}
71
72 
:-(
 {:error, reason} ->
73 {:error, "Failed to send email: #{inspect(reason)}"}
74 end
75 end
76
77 # HTML Templates
78
79 defp credentials_html_template(partner, credentials, admin_user) do
80 
:-(
 """
81 <!DOCTYPE html>
82 <html>
83 <head>
84 <meta charset="utf-8">
85 <meta name="viewport" content="width=device-width, initial-scale=1.0">
86 <title>API Credentials - Mercury UPI PSP</title>
87 <style>
88 body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; }
89 .container { max-width: 600px; margin: 0 auto; padding: 20px; }
90 .header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; text-align: center; border-radius: 8px 8px 0 0; }
91 .content { background: white; padding: 30px; border: 1px solid #e5e7eb; }
92 .credentials { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; margin: 20px 0; }
93 .credential-item { margin: 15px 0; }
94 .credential-label { font-weight: 600; color: #374151; display: block; margin-bottom: 5px; }
95 .credential-value { font-family: 'Monaco', 'Consolas', monospace; background: #1f2937; color: #f9fafb; padding: 10px; border-radius: 4px; word-break: break-all; }
96 .warning { background: #fef3c7; border: 1px solid #f59e0b; border-radius: 6px; padding: 15px; margin: 20px 0; }
97 .footer { background: #f9fafb; padding: 20px; text-align: center; color: #6b7280; border-radius: 0 0 8px 8px; }
98 .button { display: inline-block; background: #4f46e5; color: white; padding: 12px 24px; text-decoration: none; border-radius: 6px; margin: 10px 0; }
99 </style>
100 </head>
101 <body>
102 <div class="container">
103 <div class="header">
104 <h1>🔐 API Credentials Generated</h1>
105 <p>Your Mercury UPI PSP API access credentials</p>
106 </div>
107
108 <div class="content">
109 
:-(
 <p>Hello <strong>#{partner.partner_name}</strong>,</p>
110
111 
:-(
 <p>Your API credentials have been #{if String.contains?(to_string(admin_user), "regenerated"), do: "regenerated", else: "generated"} successfully. Please store these credentials securely and do not share them.</p>
112
113 <div class="credentials">
114 <h3>🔑 API Credentials</h3>
115
116 <div class="credential-item">
117 <label class="credential-label">API Key:</label>
118 
:-(
 <code class="credential-value">#{credentials.api_key}</code>
119 </div>
120
121 <div class="credential-item">
122 <label class="credential-label">API Secret:</label>
123 
:-(
 <code class="credential-value">#{credentials.api_secret}</code>
124 </div>
125
126 <div class="credential-item">
127 <label class="credential-label">Rate Limit:</label>
128 
:-(
 <code class="credential-value">#{credentials.rate_limit} requests/minute</code>
129 </div>
130
131 <div class="credential-item">
132 <label class="credential-label">Expires At:</label>
133 
:-(
 <code class="credential-value">#{format_datetime(credentials.expires_at)}</code>
134 </div>
135 </div>
136
137 <div class="warning">
138 <strong>⚠️ Security Notice:</strong>
139 <ul>
140 <li>Store these credentials securely and never share them publicly</li>
141 <li>Use HTTPS for all API communications</li>
142 <li>Monitor your API usage regularly</li>
143 <li>Contact support immediately if you suspect a compromise</li>
144 </ul>
145 </div>
146
147 <h3>📚 Getting Started</h3>
148 <p>Include the following headers in your API requests:</p>
149 <div class="credentials">
150 <code class="credential-value">
151 
:-(
 X-API-Key: #{credentials.api_key}<br>
152 
:-(
 X-API-Secret: #{credentials.api_secret}
153 </code>
154 </div>
155
156 <a href="https://docs.mercurypay.com/api" class="button">View API Documentation</a>
157 </div>
158
159 <div class="footer">
160 
:-(
 <p>Generated by: #{admin_user.email} on #{format_datetime(DateTime.utc_now())}</p>
161 <p>If you have questions, contact us at <a href="mailto:#{@support_email}">#{@support_email}</a></p>
162 
:-(
 <p>© #{Date.utc_today().year} Mercury Pay - UPI PSP Services</p>
163 </div>
164 </div>
165 </body>
166 </html>
167 """
168 end
169
170 defp revocation_html_template(partner, admin_user) do
171 
:-(
 """
172 <!DOCTYPE html>
173 <html>
174 <head>
175 <meta charset="utf-8">
176 <meta name="viewport" content="width=device-width, initial-scale=1.0">
177 <title>API Access Revoked - Mercury UPI PSP</title>
178 <style>
179 body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; }
180 .container { max-width: 600px; margin: 0 auto; padding: 20px; }
181 .header { background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%); color: white; padding: 30px; text-align: center; border-radius: 8px 8px 0 0; }
182 .content { background: white; padding: 30px; border: 1px solid #e5e7eb; }
183 .notice { background: #fef2f2; border: 1px solid #fecaca; border-radius: 6px; padding: 15px; margin: 20px 0; }
184 .footer { background: #f9fafb; padding: 20px; text-align: center; color: #6b7280; border-radius: 0 0 8px 8px; }
185 </style>
186 </head>
187 <body>
188 <div class="container">
189 <div class="header">
190 <h1>🚫 API Access Revoked</h1>
191 <p>Your Mercury UPI PSP API credentials have been revoked</p>
192 </div>
193
194 <div class="content">
195 
:-(
 <p>Hello <strong>#{partner.partner_name}</strong>,</p>
196
197 <div class="notice">
198 <p><strong>Notice:</strong> Your API credentials for Mercury UPI PSP have been revoked and are no longer valid for accessing our services.</p>
199 </div>
200
201 <p><strong>What this means:</strong></p>
202 <ul>
203 <li>All API requests using your previous credentials will be rejected</li>
204 <li>Any integration using these credentials must be updated</li>
205 <li>Your merchant services may be affected if dependent on API access</li>
206 </ul>
207
208 <p><strong>Next Steps:</strong></p>
209 <ul>
210 <li>Contact our support team if you need new credentials</li>
211 <li>Review and update any systems using the revoked credentials</li>
212 <li>Ensure compliance with any updated terms of service</li>
213 </ul>
214
215 <p>If you believe this was done in error, please contact our support team immediately.</p>
216 </div>
217
218 <div class="footer">
219 
:-(
 <p>Revoked by: #{admin_user.email} on #{format_datetime(DateTime.utc_now())}</p>
220 <p>Support: <a href="mailto:#{@support_email}">#{@support_email}</a></p>
221 
:-(
 <p>© #{Date.utc_today().year} Mercury Pay - UPI PSP Services</p>
222 </div>
223 </div>
224 </body>
225 </html>
226 """
227 end
228
229 defp expiration_warning_html_template(partner, days_remaining) do
230 
:-(
 """
231 <!DOCTYPE html>
232 <html>
233 <head>
234 <meta charset="utf-8">
235 <meta name="viewport" content="width=device-width, initial-scale=1.0">
236 <title>API Key Expiring Soon - Mercury UPI PSP</title>
237 <style>
238 body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6; color: #333; }
239 .container { max-width: 600px; margin: 0 auto; padding: 20px; }
240 .header { background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); color: white; padding: 30px; text-align: center; border-radius: 8px 8px 0 0; }
241 .content { background: white; padding: 30px; border: 1px solid #e5e7eb; }
242 .warning { background: #fef3c7; border: 1px solid #f59e0b; border-radius: 6px; padding: 15px; margin: 20px 0; }
243 .footer { background: #f9fafb; padding: 20px; text-align: center; color: #6b7280; border-radius: 0 0 8px 8px; }
244 .button { display: inline-block; background: #4f46e5; color: white; padding: 12px 24px; text-decoration: none; border-radius: 6px; margin: 10px 0; }
245 </style>
246 </head>
247 <body>
248 <div class="container">
249 <div class="header">
250 <h1>⚠️ API Key Expiring Soon</h1>
251 
:-(
 <p>Your Mercury UPI PSP API credentials expire in #{days_remaining} days</p>
252 </div>
253
254 <div class="content">
255 
:-(
 <p>Hello <strong>#{partner.partner_name}</strong>,</p>
256
257 <div class="warning">
258 
:-(
 <p><strong>Important:</strong> Your API credentials will expire in <strong>#{days_remaining} days</strong>. Please take action to avoid service interruption.</p>
259 </div>
260
261 <p><strong>What happens when credentials expire:</strong></p>
262 <ul>
263 <li>All API requests will be rejected with authentication errors</li>
264 <li>Your merchant services may be disrupted</li>
265 <li>Payment processing through our platform will stop</li>
266 </ul>
267
268 <p><strong>Action Required:</strong></p>
269 <ul>
270 <li>Contact our support team to renew your credentials</li>
271 <li>Update your systems with new credentials when provided</li>
272 <li>Test your integration after updating credentials</li>
273 </ul>
274
275 
:-(
 <a href="mailto:#{@support_email}?subject=API%20Key%20Renewal%20Request%20-%20#{partner.partner_name}" class="button">Request Renewal</a>
276 </div>
277
278 <div class="footer">
279 <p>Support: <a href="mailto:#{@support_email}">#{@support_email}</a></p>
280 
:-(
 <p>© #{Date.utc_today().year} Mercury Pay - UPI PSP Services</p>
281 </div>
282 </div>
283 </body>
284 </html>
285 """
286 end
287
288 # Text Templates (for email clients that don't support HTML)
289
290 defp credentials_text_template(partner, credentials, admin_user) do
291 
:-(
 """
292 Mercury UPI PSP - API Credentials Generated
293
294 
:-(
 Hello #{partner.partner_name},
295
296 Your API credentials have been generated successfully. Please store these credentials securely and do not share them.
297
298 API CREDENTIALS:
299 ================
300 
:-(
 API Key: #{credentials.api_key}
301 
:-(
 API Secret: #{credentials.api_secret}
302 
:-(
 Rate Limit: #{credentials.rate_limit} requests/minute
303 
:-(
 Expires At: #{format_datetime(credentials.expires_at)}
304
305 SECURITY NOTICE:
306 ================
307 - Store these credentials securely and never share them publicly
308 - Use HTTPS for all API communications
309 - Monitor your API usage regularly
310 - Contact support immediately if you suspect a compromise
311
312 GETTING STARTED:
313 ================
314 Include the following headers in your API requests:
315 
:-(
 X-API-Key: #{credentials.api_key}
316 
:-(
 X-API-Secret: #{credentials.api_secret}
317
318 Documentation: https://docs.mercurypay.com/api
319
320 
:-(
 Generated by: #{admin_user.email} on #{format_datetime(DateTime.utc_now())}
321 Support: #{@support_email}
322
323 
:-(
 © #{Date.utc_today().year} Mercury Pay - UPI PSP Services
324 """
325 end
326
327 defp revocation_text_template(partner, admin_user) do
328 
:-(
 """
329 Mercury UPI PSP - API Access Revoked
330
331 
:-(
 Hello #{partner.partner_name},
332
333 NOTICE: Your API credentials for Mercury UPI PSP have been revoked and are no longer valid for accessing our services.
334
335 WHAT THIS MEANS:
336 ================
337 - All API requests using your previous credentials will be rejected
338 - Any integration using these credentials must be updated
339 - Your merchant services may be affected if dependent on API access
340
341 NEXT STEPS:
342 ===========
343 - Contact our support team if you need new credentials
344 - Review and update any systems using the revoked credentials
345 - Ensure compliance with any updated terms of service
346
347 If you believe this was done in error, please contact our support team immediately.
348
349 
:-(
 Revoked by: #{admin_user.email} on #{format_datetime(DateTime.utc_now())}
350 Support: #{@support_email}
351
352 
:-(
 © #{Date.utc_today().year} Mercury Pay - UPI PSP Services
353 """
354 end
355
356 defp expiration_warning_text_template(partner, days_remaining) do
357 
:-(
 """
358 Mercury UPI PSP - API Key Expiring Soon
359
360 
:-(
 Hello #{partner.partner_name},
361
362 
:-(
 IMPORTANT: Your API credentials will expire in #{days_remaining} days. Please take action to avoid service interruption.
363
364 WHAT HAPPENS WHEN CREDENTIALS EXPIRE:
365 =====================================
366 - All API requests will be rejected with authentication errors
367 - Your merchant services may be disrupted
368 - Payment processing through our platform will stop
369
370 ACTION REQUIRED:
371 ================
372 - Contact our support team to renew your credentials
373 - Update your systems with new credentials when provided
374 - Test your integration after updating credentials
375
376 Contact support at: #{@support_email}
377
378 
:-(
 © #{Date.utc_today().year} Mercury Pay - UPI PSP Services
379 """
380 end
381
382 # Helper functions
383
384 defp format_datetime(%DateTime{} = datetime) do
385 datetime
386 |> DateTime.truncate(:second)
387 
:-(
 |> DateTime.to_string()
388 end
389
390 
:-(
 defp format_datetime(nil), do: "N/A"
391 end
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