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| 1 | +import { createLogger } from '@sim/logger' |
| 2 | +import { type NextRequest, NextResponse } from 'next/server' |
| 3 | +import { gmailEditDraftContract } from '@/lib/api/contracts/google-tools' |
| 4 | +import { parseRequest } from '@/lib/api/server' |
| 5 | +import { checkInternalAuth } from '@/lib/auth/hybrid' |
| 6 | +import { generateRequestId } from '@/lib/core/utils/request' |
| 7 | +import { withRouteHandler } from '@/lib/core/utils/with-route-handler' |
| 8 | +import { processFilesToUserFiles } from '@/lib/uploads/utils/file-utils' |
| 9 | +import { downloadFileFromStorage } from '@/lib/uploads/utils/file-utils.server' |
| 10 | +import { |
| 11 | + base64UrlEncode, |
| 12 | + buildMimeMessage, |
| 13 | + buildSimpleEmailMessage, |
| 14 | + fetchThreadingHeaders, |
| 15 | + GMAIL_API_BASE, |
| 16 | +} from '@/tools/gmail/utils' |
| 17 | + |
| 18 | +export const dynamic = 'force-dynamic' |
| 19 | + |
| 20 | +const logger = createLogger('GmailEditDraftAPI') |
| 21 | + |
| 22 | +export const POST = withRouteHandler(async (request: NextRequest) => { |
| 23 | + const requestId = generateRequestId() |
| 24 | + |
| 25 | + try { |
| 26 | + const authResult = await checkInternalAuth(request, { requireWorkflowId: false }) |
| 27 | + |
| 28 | + if (!authResult.success) { |
| 29 | + logger.warn(`[${requestId}] Unauthorized Gmail edit draft attempt: ${authResult.error}`) |
| 30 | + return NextResponse.json( |
| 31 | + { |
| 32 | + success: false, |
| 33 | + error: authResult.error || 'Authentication required', |
| 34 | + }, |
| 35 | + { status: 401 } |
| 36 | + ) |
| 37 | + } |
| 38 | + |
| 39 | + logger.info( |
| 40 | + `[${requestId}] Authenticated Gmail edit draft request via ${authResult.authType}`, |
| 41 | + { userId: authResult.userId } |
| 42 | + ) |
| 43 | + |
| 44 | + const parsed = await parseRequest(gmailEditDraftContract, request, {}) |
| 45 | + if (!parsed.success) return parsed.response |
| 46 | + const validatedData = parsed.data.body |
| 47 | + |
| 48 | + logger.info(`[${requestId}] Updating Gmail draft`, { |
| 49 | + draftId: validatedData.draftId, |
| 50 | + to: validatedData.to, |
| 51 | + hasAttachments: !!(validatedData.attachments && validatedData.attachments.length > 0), |
| 52 | + attachmentCount: validatedData.attachments?.length || 0, |
| 53 | + }) |
| 54 | + |
| 55 | + const threadingHeaders = validatedData.replyToMessageId |
| 56 | + ? await fetchThreadingHeaders(validatedData.replyToMessageId, validatedData.accessToken) |
| 57 | + : {} |
| 58 | + |
| 59 | + const originalMessageId = threadingHeaders.messageId |
| 60 | + const originalReferences = threadingHeaders.references |
| 61 | + const originalSubject = threadingHeaders.subject |
| 62 | + |
| 63 | + let rawMessage: string | undefined |
| 64 | + |
| 65 | + if (validatedData.attachments && validatedData.attachments.length > 0) { |
| 66 | + const rawAttachments = validatedData.attachments |
| 67 | + const attachments = processFilesToUserFiles(rawAttachments, requestId, logger) |
| 68 | + |
| 69 | + if (attachments.length > 0) { |
| 70 | + const totalSize = attachments.reduce((sum, file) => sum + file.size, 0) |
| 71 | + const maxSize = 25 * 1024 * 1024 |
| 72 | + |
| 73 | + if (totalSize > maxSize) { |
| 74 | + const sizeMB = (totalSize / (1024 * 1024)).toFixed(2) |
| 75 | + return NextResponse.json( |
| 76 | + { |
| 77 | + success: false, |
| 78 | + error: `Total attachment size (${sizeMB}MB) exceeds Gmail's limit of 25MB`, |
| 79 | + }, |
| 80 | + { status: 400 } |
| 81 | + ) |
| 82 | + } |
| 83 | + |
| 84 | + const attachmentBuffers = await Promise.all( |
| 85 | + attachments.map(async (file) => { |
| 86 | + const buffer = await downloadFileFromStorage(file, requestId, logger) |
| 87 | + return { |
| 88 | + filename: file.name, |
| 89 | + mimeType: file.type || 'application/octet-stream', |
| 90 | + content: buffer, |
| 91 | + } |
| 92 | + }) |
| 93 | + ) |
| 94 | + |
| 95 | + const mimeMessage = buildMimeMessage({ |
| 96 | + to: validatedData.to, |
| 97 | + cc: validatedData.cc ?? undefined, |
| 98 | + bcc: validatedData.bcc ?? undefined, |
| 99 | + subject: validatedData.subject || originalSubject || '', |
| 100 | + body: validatedData.body, |
| 101 | + contentType: validatedData.contentType || 'text', |
| 102 | + inReplyTo: originalMessageId, |
| 103 | + references: originalReferences, |
| 104 | + attachments: attachmentBuffers, |
| 105 | + }) |
| 106 | + |
| 107 | + rawMessage = base64UrlEncode(mimeMessage) |
| 108 | + } |
| 109 | + } |
| 110 | + |
| 111 | + if (!rawMessage) { |
| 112 | + rawMessage = buildSimpleEmailMessage({ |
| 113 | + to: validatedData.to, |
| 114 | + cc: validatedData.cc, |
| 115 | + bcc: validatedData.bcc, |
| 116 | + subject: validatedData.subject || originalSubject, |
| 117 | + body: validatedData.body, |
| 118 | + contentType: validatedData.contentType || 'text', |
| 119 | + inReplyTo: originalMessageId, |
| 120 | + references: originalReferences, |
| 121 | + }) |
| 122 | + } |
| 123 | + |
| 124 | + const draftMessage: { raw: string; threadId?: string } = { raw: rawMessage } |
| 125 | + if (validatedData.threadId) { |
| 126 | + draftMessage.threadId = validatedData.threadId |
| 127 | + } |
| 128 | + |
| 129 | + const gmailResponse = await fetch( |
| 130 | + `${GMAIL_API_BASE}/drafts/${encodeURIComponent(validatedData.draftId)}`, |
| 131 | + { |
| 132 | + method: 'PUT', |
| 133 | + headers: { |
| 134 | + Authorization: `Bearer ${validatedData.accessToken}`, |
| 135 | + 'Content-Type': 'application/json', |
| 136 | + }, |
| 137 | + body: JSON.stringify({ |
| 138 | + id: validatedData.draftId, |
| 139 | + message: draftMessage, |
| 140 | + }), |
| 141 | + } |
| 142 | + ) |
| 143 | + |
| 144 | + if (!gmailResponse.ok) { |
| 145 | + const errorText = await gmailResponse.text() |
| 146 | + logger.error(`[${requestId}] Gmail API error:`, errorText) |
| 147 | + return NextResponse.json( |
| 148 | + { |
| 149 | + success: false, |
| 150 | + error: `Gmail API error: ${gmailResponse.statusText}`, |
| 151 | + }, |
| 152 | + { status: gmailResponse.status } |
| 153 | + ) |
| 154 | + } |
| 155 | + |
| 156 | + const data = await gmailResponse.json() |
| 157 | + |
| 158 | + logger.info(`[${requestId}] Draft updated successfully`, { draftId: data.id }) |
| 159 | + |
| 160 | + return NextResponse.json({ |
| 161 | + success: true, |
| 162 | + output: { |
| 163 | + draftId: data.id ?? null, |
| 164 | + messageId: data.message?.id ?? null, |
| 165 | + threadId: data.message?.threadId ?? null, |
| 166 | + labelIds: data.message?.labelIds ?? null, |
| 167 | + }, |
| 168 | + }) |
| 169 | + } catch (error) { |
| 170 | + logger.error(`[${requestId}] Error updating Gmail draft:`, error) |
| 171 | + |
| 172 | + return NextResponse.json( |
| 173 | + { |
| 174 | + success: false, |
| 175 | + error: error instanceof Error ? error.message : 'Internal server error', |
| 176 | + }, |
| 177 | + { status: 500 } |
| 178 | + ) |
| 179 | + } |
| 180 | +}) |
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