diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..a97b388
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,17 @@
+# Copy to .env for local development β never commit .env
+PORT=3000
+
+# Meta WhatsApp Cloud API
+WHATSAPP_TOKEN=
+# Meta's numeric Phone Number ID from the Developer Console β NOT the phone number itself
+WA_PHONE_NUMBER_ID=
+VERIFY_TOKEN=my-secret-verify-token
+
+# Anthropic
+ANTHROPIC_API_KEY=
+
+# Chatwoot
+CHATWOOT_URL=https://chatwoot.example.com
+CHATWOOT_API_KEY=
+CHATWOOT_ACCOUNT_ID=
+CHATWOOT_INBOX_ID=
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..92c96af
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,39 @@
+name: Build and Push
+
+on:
+ push:
+ branches: [main]
+
+env:
+ IMAGE: ghcr.io/rmcampos/shell-whats
+
+jobs:
+ build:
+ runs-on: ubuntu-latest
+ permissions:
+ contents: read
+ packages: write
+
+ steps:
+ - uses: actions/checkout@v4
+
+ - name: Log in to GHCR
+ uses: docker/login-action@v3
+ with:
+ registry: ghcr.io
+ username: ${{ github.actor }}
+ password: ${{ secrets.GITHUB_TOKEN }}
+
+ - name: Set up Docker Buildx
+ uses: docker/setup-buildx-action@v3
+
+ - name: Build and push
+ uses: docker/build-push-action@v6
+ with:
+ context: .
+ push: true
+ tags: |
+ ${{ env.IMAGE }}:latest
+ ${{ env.IMAGE }}:${{ github.sha }}
+ cache-from: type=gha
+ cache-to: type=gha,mode=max
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 0000000..53bbf9a
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,139 @@
+name: Deploy
+
+on:
+ workflow_dispatch:
+ workflow_run:
+ workflows: [Build and Push]
+ types: [completed]
+ branches: [main]
+
+env:
+ IMAGE: ghcr.io/rmcampos/shell-whats
+
+jobs:
+ plan:
+ runs-on: ubuntu-latest
+ if: ${{ github.event.workflow_run.conclusion == 'success' }}
+ outputs:
+ no_changes: ${{ steps.check-changes.outputs.no_changes }}
+ permissions:
+ contents: read
+
+ steps:
+ - name: Checkout code
+ uses: actions/checkout@v6
+ with:
+ fetch-depth: 0
+
+ - name: Set up Terraform
+ uses: hashicorp/setup-terraform@v3
+
+ - name: Setup kubectl
+ uses: azure/setup-kubectl@v4
+
+ - name: Write kubeconfig
+ run: |
+ mkdir -p ~/.kube
+ echo "${{ secrets.KUBECONFIG }}" | base64 -d > ~/.kube/config
+ chmod 600 ~/.kube/config
+
+ - name: Terraform Fmt -check -diff
+ working-directory: terraform
+ run: terraform fmt -check -diff
+
+ - name: Terraform init
+ working-directory: terraform
+ run: terraform init -input=false
+ env:
+ AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+ AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+
+ - name: Terraform Validate
+ working-directory: terraform
+ run: terraform validate
+
+ - name: Terraform Plan
+ id: check-changes
+ working-directory: terraform
+ env:
+ AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+ AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+ run: |
+ timeout 1m terraform plan -input=false -out=tfplan \
+ -var="db_user=${{ secrets.DB_USER }}" \
+ -var="db_password=${{ secrets.DB_PASSWORD }}" \
+ -var="db_name=${{ secrets.DB_NAME }}" \
+ -var="security_key=${{ secrets.JWT_SECURITY_KEY }}" \
+ -var="mailgun_apikey=${{ secrets.MAILGUN_API_KEY }}" \
+ -var="r2_access_key=${{ secrets.R2_ACCESS_KEY_ID }}" \
+ -var="r2_secret_key=${{ secrets.R2_SECRET_ACCESS_KEY }}" \
+ -var="backend_image=${{ steps.deploy-vars.outputs.backend_image }}" \
+ -var="frontend_image=${{ steps.deploy-vars.outputs.frontend_image }}"
+ terraform show -json tfplan > tfplan.json
+ if jq -e '.resource_changes | length == 0' tfplan.json >/dev/null; then
+ echo "no_changes=true" >> "$GITHUB_OUTPUT"
+ echo "No changes to apply."
+ exit 0
+ else
+ echo "Changes detected. Proceeding with apply"
+ echo "no_changes=false" >> "$GITHUB_OUTPUT"
+ fi
+
+ - name: Upload plan artifact
+ uses: actions/upload-artifact@v4
+ with:
+ name: tfplan
+ path: terraform/tfplan
+
+ terraform-apply:
+ runs-on: ubuntu-latest
+ needs: terraform-plan
+ if: >
+ (github.event_name == 'push' || github.event_name == 'workflow_run' || inputs.apply == 'true')
+ && needs.terraform-plan.outputs.no_changes == 'false'
+ environment:
+ name: production
+ permissions:
+ contents: read
+ steps:
+ - name: Checkout code
+ uses: actions/checkout@v6
+
+ - name: Setup Terraform
+ uses: hashicorp/setup-terraform@v3
+
+ - name: Download plan artifact
+ uses: actions/download-artifact@v4
+ with:
+ name: tfplan
+ path: terraform
+
+ - name: Setup Kubeconfig
+ run: |
+ mkdir -p ~/.kube
+ echo "${{ secrets.KUBECONFIG_DATA }}" | base64 -d > ~/.kube/config
+ chmod 600 ~/.kube/config
+
+ - name: Terraform Init
+ working-directory: terraform
+ env:
+ AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
+ AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
+ run: terraform init -input=false
+
+ - name: Terraform apply
+ working-directory: terraform
+ env:
+ TF_VAR_image: "${{ env.IMAGE }}:${{ github.event.workflow_run.head_sha }}"
+ TF_VAR_whatsapp_token: ${{ secrets.WHATSAPP_TOKEN }}
+ TF_VAR_anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
+ TF_VAR_chatwoot_api_key: ${{ secrets.CHATWOOT_API_KEY }}
+ TF_VAR_phone_number_id: ${{ secrets.PHONE_NUMBER_ID }}
+ TF_VAR_verify_token: ${{ secrets.VERIFY_TOKEN }}
+ TF_VAR_chatwoot_url: ${{ secrets.CHATWOOT_URL }}
+ TF_VAR_chatwoot_inbox_id: ${{ secrets.CHATWOOT_INBOX_ID }}
+ TF_VAR_chatwoot_account_id: ${{ secrets.CHATWOOT_ACCOUNT_ID }}
+ TF_VAR_kubeconfig_path: "~/.kube/config"
+ TF_VAR_kubeconfig_context: ${{ vars.KUBECONFIG_CONTEXT }}
+ TF_VAR_namespace: ${{ vars.K8S_NAMESPACE || 'default' }}
+ run: timeout 1m terraform apply tfplan
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..eaea3d3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+node_modules/
+.env
+terraform/.terraform/
+terraform/terraform.tfvars
+terraform/*.tfstate
+terraform/*.tfstate.backup
+terraform/.terraform.lock.hcl
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..30cf57e
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/google-java-format.xml b/.idea/google-java-format.xml
new file mode 100644
index 0000000..2aa056d
--- /dev/null
+++ b/.idea/google-java-format.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..0a0b7ce
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,7 @@
+
+
+ {}
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..1317a21
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/shell-whats.iml b/.idea/shell-whats.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/shell-whats.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..f654eb7
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,16 @@
+FROM node:22-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm ci --omit=dev
+
+FROM node:22-alpine
+WORKDIR /app
+ENV NODE_ENV=production
+
+COPY --from=deps /app/node_modules ./node_modules
+COPY src ./src
+COPY package.json ./
+
+EXPOSE 3000
+USER node
+CMD ["node", "src/index.js"]
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..ea01f53
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1036 @@
+{
+ "name": "shell-whats",
+ "version": "1.0.0",
+ "lockfileVersion": 3,
+ "requires": true,
+ "packages": {
+ "": {
+ "name": "shell-whats",
+ "version": "1.0.0",
+ "dependencies": {
+ "@anthropic-ai/sdk": "^0.52.0",
+ "axios": "^1.9.0",
+ "dotenv": "^17.4.2",
+ "express": "^4.19.2"
+ }
+ },
+ "node_modules/@anthropic-ai/sdk": {
+ "version": "0.52.0",
+ "resolved": "https://registry.npmjs.org/@anthropic-ai/sdk/-/sdk-0.52.0.tgz",
+ "integrity": "sha512-d4c+fg+xy9e46c8+YnrrgIQR45CZlAi7PwdzIfDXDM6ACxEZli1/fxhURsq30ZpMZy6LvSkr41jGq5aF5TD7rQ==",
+ "license": "MIT",
+ "bin": {
+ "anthropic-ai-sdk": "bin/cli"
+ }
+ },
+ "node_modules/accepts": {
+ "version": "1.3.8",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+ "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+ "license": "MIT",
+ "dependencies": {
+ "mime-types": "~2.1.34",
+ "negotiator": "0.6.3"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/agent-base": {
+ "version": "6.0.2",
+ "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz",
+ "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==",
+ "license": "MIT",
+ "dependencies": {
+ "debug": "4"
+ },
+ "engines": {
+ "node": ">= 6.0.0"
+ }
+ },
+ "node_modules/agent-base/node_modules/debug": {
+ "version": "4.4.3",
+ "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.3.tgz",
+ "integrity": "sha512-RGwwWnwQvkVfavKVt22FGLw+xYSdzARwm0ru6DhTVA3umU5hZc28V3kO4stgYryrTlLpuvgI9GiijltAjNbcqA==",
+ "license": "MIT",
+ "dependencies": {
+ "ms": "^2.1.3"
+ },
+ "engines": {
+ "node": ">=6.0"
+ },
+ "peerDependenciesMeta": {
+ "supports-color": {
+ "optional": true
+ }
+ }
+ },
+ "node_modules/agent-base/node_modules/ms": {
+ "version": "2.1.3",
+ "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+ "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+ "license": "MIT"
+ },
+ "node_modules/array-flatten": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+ "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==",
+ "license": "MIT"
+ },
+ "node_modules/asynckit": {
+ "version": "0.4.0",
+ "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+ "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
+ "license": "MIT"
+ },
+ "node_modules/axios": {
+ "version": "1.16.1",
+ "resolved": "https://registry.npmjs.org/axios/-/axios-1.16.1.tgz",
+ "integrity": "sha512-caYkukvroVPO8KrzuJEb50Hm07KwfBZPEC3VeFHTsqWHvKTsy54hjJz9BS/cdaypROE2rH6xvm9mHX4fgWkr3A==",
+ "license": "MIT",
+ "dependencies": {
+ "follow-redirects": "^1.16.0",
+ "form-data": "^4.0.5",
+ "https-proxy-agent": "^5.0.1",
+ "proxy-from-env": "^2.1.0"
+ }
+ },
+ "node_modules/body-parser": {
+ "version": "1.20.5",
+ "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.20.5.tgz",
+ "integrity": "sha512-3grm+/2tUOvu2cjJkvsIxrv/wVpfXQW4PsQHYm7yk4vfpu7Ekl6nEsYBoJUL6qDwZUx8wUhQ8tR2qz+ad9c9OA==",
+ "license": "MIT",
+ "dependencies": {
+ "bytes": "~3.1.2",
+ "content-type": "~1.0.5",
+ "debug": "2.6.9",
+ "depd": "2.0.0",
+ "destroy": "~1.2.0",
+ "http-errors": "~2.0.1",
+ "iconv-lite": "~0.4.24",
+ "on-finished": "~2.4.1",
+ "qs": "~6.15.1",
+ "raw-body": "~2.5.3",
+ "type-is": "~1.6.18",
+ "unpipe": "~1.0.0"
+ },
+ "engines": {
+ "node": ">= 0.8",
+ "npm": "1.2.8000 || >= 1.4.16"
+ }
+ },
+ "node_modules/bytes": {
+ "version": "3.1.2",
+ "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+ "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/call-bind-apply-helpers": {
+ "version": "1.0.2",
+ "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
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+ "license": "MIT",
+ "dependencies": {
+ "es-errors": "^1.3.0",
+ "function-bind": "^1.1.2"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
+ "node_modules/call-bound": {
+ "version": "1.0.4",
+ "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
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+ "license": "MIT",
+ "dependencies": {
+ "call-bind-apply-helpers": "^1.0.2",
+ "get-intrinsic": "^1.3.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ },
+ "funding": {
+ "url": "https://github.com/sponsors/ljharb"
+ }
+ },
+ "node_modules/combined-stream": {
+ "version": "1.0.8",
+ "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
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+ "dependencies": {
+ "delayed-stream": "~1.0.0"
+ },
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/content-disposition": {
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+ "dependencies": {
+ "safe-buffer": "5.2.1"
+ },
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
+ "node_modules/content-type": {
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+ "license": "MIT",
+ "engines": {
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+ }
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+ "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
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+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.6"
+ }
+ },
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+ "license": "MIT"
+ },
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+ "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+ "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+ "license": "MIT",
+ "dependencies": {
+ "ms": "2.0.0"
+ }
+ },
+ "node_modules/delayed-stream": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+ "integrity": "sha512-ZySD7Nf91aLB0RxL4KGrKHBXl7Eds1DAmEdcoVawXnLD7SDhpNgtuII2aAkg7a7QS41jxPSZ17p4VdGnMHk3MQ==",
+ "license": "MIT",
+ "engines": {
+ "node": ">=0.4.0"
+ }
+ },
+ "node_modules/depd": {
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+ "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+ "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8"
+ }
+ },
+ "node_modules/destroy": {
+ "version": "1.2.0",
+ "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
+ "integrity": "sha512-2sJGJTaXIIaR1w4iJSNoN0hnMY7Gpc/n8D4qSCJw8QqFWXf7cuAgnEHxBpweaVcPevC2l3KpjYCx3NypQQgaJg==",
+ "license": "MIT",
+ "engines": {
+ "node": ">= 0.8",
+ "npm": "1.2.8000 || >= 1.4.16"
+ }
+ },
+ "node_modules/dotenv": {
+ "version": "17.4.2",
+ "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.4.2.tgz",
+ "integrity": "sha512-nI4U3TottKAcAD9LLud4Cb7b2QztQMUEfHbvhTH09bqXTxnSie8WnjPALV/WMCrJZ6UV/qHJ6L03OqO3LcdYZw==",
+ "license": "BSD-2-Clause",
+ "engines": {
+ "node": ">=12"
+ },
+ "funding": {
+ "url": "https://dotenvx.com"
+ }
+ },
+ "node_modules/dunder-proto": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+ "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+ "license": "MIT",
+ "dependencies": {
+ "call-bind-apply-helpers": "^1.0.1",
+ "es-errors": "^1.3.0",
+ "gopd": "^1.2.0"
+ },
+ "engines": {
+ "node": ">= 0.4"
+ }
+ },
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+ "version": "1.1.2",
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+ "license": "MIT",
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+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..b3fadd9
--- /dev/null
+++ b/package.json
@@ -0,0 +1,16 @@
+{
+ "name": "shell-whats",
+ "version": "1.0.0",
+ "description": "WhatsApp Business API chatbot with Claude AI and Chatwoot handoff",
+ "main": "src/index.js",
+ "scripts": {
+ "start": "node src/index.js",
+ "dev": "node --watch src/index.js"
+ },
+ "dependencies": {
+ "@anthropic-ai/sdk": "^0.52.0",
+ "axios": "^1.9.0",
+ "dotenv": "^17.4.2",
+ "express": "^4.19.2"
+ }
+}
diff --git a/src/handlers/messageHandler.js b/src/handlers/messageHandler.js
new file mode 100644
index 0000000..8a179bc
--- /dev/null
+++ b/src/handlers/messageHandler.js
@@ -0,0 +1,105 @@
+const { getSession } = require('../store/conversations');
+const { sendText, sendInteractiveButtons } = require('../services/whatsapp');
+const { chat } = require('../services/claude');
+const { createConversation } = require('../services/chatwoot');
+
+const WELCOME_TEXT =
+ 'OlΓ‘! π Bem-vindo ao nosso suporte. Como podemos ajudΓ‘-lo hoje?';
+
+const WELCOME_BUTTONS = [
+ { id: 'btn_products', title: 'ποΈ Produtos/PreΓ§os' },
+ { id: 'btn_support', title: 'π§ Suporte TΓ©cnico' },
+ { id: 'btn_human', title: 'π€ Falar com Agente' },
+];
+
+const HUMAN_HANDOFF_REPLIES = new Set(['btn_human', 'humano', 'agente', 'atendente', 'falar com agente', 'falar com atendente']);
+
+async function handleMessage({ message, phoneNumber, displayName }) {
+ const session = getSession(phoneNumber);
+
+ // Already handed off β silently ignore (Chatwoot takes over)
+ if (session.handedOff) return;
+
+ const msgType = message.type;
+
+ // Extract text from text or interactive button reply
+ let userText = '';
+ let buttonId = null;
+
+ if (msgType === 'text') {
+ userText = message.text?.body?.trim() || '';
+ } else if (msgType === 'interactive') {
+ const reply = message.interactive?.button_reply;
+ buttonId = reply?.id || '';
+ userText = reply?.title || '';
+ } else {
+ // Unsupported message type
+ try {
+ await sendText(phoneNumber, 'Desculpe, no momento sΓ³ consigo processar mensagens de texto.');
+ } catch (err) {
+ console.error('Meta API error details:', JSON.stringify(err.response?.data, null, 2));
+ }
+ return;
+ }
+
+ // First contact β send welcome menu
+ if (!session.greeted) {
+ session.greeted = true;
+ await sendInteractiveButtons(phoneNumber, WELCOME_TEXT, WELCOME_BUTTONS);
+ return;
+ }
+
+ // Human handoff requested
+ const isHandoffRequest =
+ HUMAN_HANDOFF_REPLIES.has(buttonId) ||
+ HUMAN_HANDOFF_REPLIES.has(userText.toLowerCase());
+
+ if (isHandoffRequest) {
+ session.handedOff = true;
+ console.log(`[HANDOFF] ${displayName} (${phoneNumber}) requested a human agent`);
+ await sendText(
+ phoneNumber,
+ 'Estamos transferindo vocΓͺ para um de nossos atendentes. Por favor, aguarde β em breve alguΓ©m estarΓ‘ com vocΓͺ. π\n\nQuando o atendimento for encerrado, envie qualquer mensagem para iniciar uma nova conversa.'
+ );
+ try {
+ const conversationId = await createConversation(phoneNumber, displayName, session.history);
+ console.log(`[HANDOFF] Chatwoot conversation created (id=${conversationId}) for ${displayName} (${phoneNumber})`);
+ } catch (err) {
+ console.error('Chatwoot handoff failed:', err?.response?.data || err.message);
+ console.error('Meta API error details:', JSON.stringify(err.response?.data, null, 2));
+ }
+ return;
+ }
+
+ // Route to Claude
+ try {
+ const reply = await chat(session.history, userText);
+
+ // Persist turn in history
+ session.history.push({ role: 'user', content: userText });
+ session.history.push({ role: 'assistant', content: reply });
+
+ // Keep history bounded to last 20 turns (10 exchanges)
+ if (session.history.length > 20) {
+ session.history = session.history.slice(-20);
+ }
+
+ await sendText(phoneNumber, reply);
+
+ // After every AI reply, offer the human handoff option
+ await sendInteractiveButtons(
+ phoneNumber,
+ 'Posso ajudar com mais alguma coisa?',
+ [{ id: 'btn_human', title: 'π€ Falar com Agente' }]
+ );
+ } catch (err) {
+ console.error('Claude error:', err?.message);
+ console.error('Meta API error details:', JSON.stringify(err.response?.data, null, 2));
+ await sendText(
+ phoneNumber,
+ "Estamos com uma instabilidade no momento. Por favor, tente novamente em instantes ou digite 'atendente' para falar com um de nossos agentes."
+ );
+ }
+}
+
+module.exports = { handleMessage };
diff --git a/src/index.js b/src/index.js
new file mode 100644
index 0000000..24a15c1
--- /dev/null
+++ b/src/index.js
@@ -0,0 +1,15 @@
+require('dotenv').config();
+const express = require('express');
+const webhookRouter = require('./routes/webhook');
+const chatwootWebhookRouter = require('./routes/chatwootWebhook');
+
+const app = express();
+app.use(express.json());
+
+app.use('/webhook', webhookRouter);
+app.use('/chatwoot-webhook', chatwootWebhookRouter);
+
+app.get('/health', (_req, res) => res.json({ status: 'ok' }));
+
+const PORT = process.env.PORT || 3000;
+app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
diff --git a/src/routes/chatwootWebhook.js b/src/routes/chatwootWebhook.js
new file mode 100644
index 0000000..5d7d858
--- /dev/null
+++ b/src/routes/chatwootWebhook.js
@@ -0,0 +1,31 @@
+const express = require('express');
+const { sendText } = require('../services/whatsapp');
+
+const router = express.Router();
+
+router.post('/', async (req, res) => {
+ res.sendStatus(200);
+
+ try {
+ const { event, message_type, content, private: isPrivate, conversation } = req.body;
+
+ // Only forward outgoing agent messages; ignore private notes and all other events
+ if (event !== 'message_created' || message_type !== 'outgoing' || isPrivate) return;
+
+ const phoneNumber = conversation?.meta?.sender?.phone_number
+ || conversation?.additional_attributes?.phone_number;
+
+ if (!phoneNumber || !content) return;
+
+ // Strip leading + so it matches the format used throughout the app
+ const to = phoneNumber.replace(/^\+/, '');
+
+ console.log(`Chatwoot agent reply β WhatsApp ${to}: ${content}`);
+ await sendText(to, content);
+ } catch (err) {
+ console.error('Chatwoot webhook error:', err.message);
+ console.error('Meta API error details:', JSON.stringify(err.response?.data, null, 2));
+ }
+});
+
+module.exports = router;
diff --git a/src/routes/webhook.js b/src/routes/webhook.js
new file mode 100644
index 0000000..fd3375f
--- /dev/null
+++ b/src/routes/webhook.js
@@ -0,0 +1,43 @@
+const express = require('express');
+const { handleMessage } = require('../handlers/messageHandler');
+
+const router = express.Router();
+
+// Meta webhook verification challenge
+router.get('/', (req, res) => {
+ const mode = req.query['hub.mode'];
+ const token = req.query['hub.verify_token'];
+ const challenge = req.query['hub.challenge'];
+
+ if (mode === 'subscribe' && token === process.env.VERIFY_TOKEN) {
+ console.log('Webhook verified');
+ return res.status(200).send(challenge);
+ }
+ res.sendStatus(403);
+});
+
+// Inbound messages
+router.post('/', async (req, res) => {
+ // Acknowledge immediately β Meta requires 200 within 20s
+ res.sendStatus(200);
+
+ try {
+ const entry = req.body?.entry?.[0];
+ const change = entry?.changes?.[0];
+ const value = change?.value;
+
+ if (!value?.messages?.length) return;
+
+ const message = value.messages[0];
+ const contact = value.contacts?.[0];
+ const phoneNumber = message.from;
+ const displayName = contact?.profile?.name || phoneNumber;
+
+ await handleMessage({ message, phoneNumber, displayName });
+ } catch (err) {
+ console.error('Webhook processing error:', err);
+ console.error('Meta API error details:', JSON.stringify(err.response?.data, null, 2));
+ }
+});
+
+module.exports = router;
diff --git a/src/services/chatwoot.js b/src/services/chatwoot.js
new file mode 100644
index 0000000..349b24c
--- /dev/null
+++ b/src/services/chatwoot.js
@@ -0,0 +1,66 @@
+const axios = require('axios');
+
+function headers() {
+ return {
+ api_access_token: process.env.CHATWOOT_API_KEY,
+ 'Content-Type': 'application/json',
+ };
+}
+
+function baseUrl() {
+ return `${process.env.CHATWOOT_URL}/api/v1/accounts/${process.env.CHATWOOT_ACCOUNT_ID}`;
+}
+
+async function findOrCreateContact(phoneNumber, displayName) {
+ const search = await axios.get(`${baseUrl()}/contacts/search`, {
+ params: { q: phoneNumber, include_contacts: true },
+ headers: headers(),
+ });
+
+ const existing = search.data?.payload?.find(
+ (c) => c.phone_number === phoneNumber || c.phone_number === `+${phoneNumber}`
+ );
+
+ if (existing) return existing.id;
+
+ const created = await axios.post(
+ `${baseUrl()}/contacts`,
+ { name: displayName, phone_number: `+${phoneNumber}` },
+ { headers: headers() }
+ );
+ return created.data.payload.contact.id;
+}
+
+async function createConversation(phoneNumber, displayName, history) {
+ const contactId = await findOrCreateContact(phoneNumber, displayName);
+
+ const conversation = await axios.post(
+ `${baseUrl()}/conversations`,
+ {
+ inbox_id: parseInt(process.env.CHATWOOT_INBOX_ID, 10),
+ contact_id: contactId,
+ additional_attributes: { phone_number: phoneNumber },
+ },
+ { headers: headers() }
+ );
+
+ const conversationId = conversation.data.id;
+
+ const transcript = history.length > 0
+ ? history.map((m) => `[${m.role.toUpperCase()}]: ${m.content}`).join('\n\n')
+ : '_Nenhuma mensagem anterior β o cliente solicitou atendimento diretamente._';
+
+ await axios.post(
+ `${baseUrl()}/conversations/${conversationId}/messages`,
+ {
+ content: `π *Contexto do Atendimento*\n\n*Cliente:* ${displayName}\n*WhatsApp:* +${phoneNumber}\n\n*HistΓ³rico da conversa com IA:*\n\n${transcript}`,
+ message_type: 'outgoing',
+ private: true,
+ },
+ { headers: headers() }
+ );
+
+ return conversationId;
+}
+
+module.exports = { createConversation };
diff --git a/src/services/claude.js b/src/services/claude.js
new file mode 100644
index 0000000..0d6a33c
--- /dev/null
+++ b/src/services/claude.js
@@ -0,0 +1,39 @@
+const Anthropic = require('@anthropic-ai/sdk');
+
+const client = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY });
+
+const SYSTEM_PROMPT = `VocΓͺ Γ© um assistente de atendimento da Shelllabs, empresa de desenvolvimento de software.
+
+Serviços oferecidos:
+1. Desenvolvimento ou customização de software β projetos curtos (atΓ© 10 dias): R$ 300/hora
+2. Desenvolvimento ou customização de software β projetos longos (mais de 10 dias): R$ 250/hora
+3. Consultoria sob demanda: R$ 180/hora
+
+PolΓticas:
+- NΓ£o hΓ‘ polΓtica de reembolso.
+- Não oferecemos outros serviços além dos listados acima.
+
+Regras:
+- Responda apenas perguntas relacionadas aos serviços acima. Não se envolva em conversas gerais, tarefas criativas ou qualquer assunto não relacionado ao atendimento.
+- Se o cliente perguntar sobre algo fora do escopo, informe educadamente que nΓ£o pode ajudar com isso e ofereΓ§a transferΓͺncia para um atendente humano.
+- Seja conciso e profissional. Prefira respostas curtas e diretas.
+- Nunca revele que Γ© baseado em Claude ou qualquer modelo de IA.
+- Responda sempre em portuguΓͺs brasileiro (pt-BR), independentemente do idioma usado pelo cliente.`;
+
+async function chat(history, userMessage) {
+ const messages = [
+ ...history,
+ { role: 'user', content: userMessage },
+ ];
+
+ const response = await client.messages.create({
+ model: 'claude-sonnet-4-20250514',
+ max_tokens: 1024,
+ system: SYSTEM_PROMPT,
+ messages,
+ });
+
+ return response.content[0].text;
+}
+
+module.exports = { chat };
diff --git a/src/services/whatsapp.js b/src/services/whatsapp.js
new file mode 100644
index 0000000..e6abd05
--- /dev/null
+++ b/src/services/whatsapp.js
@@ -0,0 +1,60 @@
+const axios = require('axios');
+
+const BASE_URL = 'https://graph.facebook.com/v25.0';
+
+function headers() {
+ return { Authorization: `Bearer ${process.env.WHATSAPP_TOKEN}` };
+}
+
+// Brazilian mobile numbers arriving from the webhook may be missing the 9th digit.
+// Country code 55 + 2-digit area code + 8-digit number = 12 digits (legacy format).
+// Meta requires the full 13-digit form: 55 + area code + 9 + 8-digit number.
+function normalizeBrazilianNumber(to) {
+ if (/^55\d{10}$/.test(to)) {
+ const normalized = to.slice(0, 4) + '9' + to.slice(4);
+ console.log(`Brazilian number normalized: ${to} β ${normalized}`);
+ return normalized;
+ }
+ return to;
+}
+
+async function sendText(to, body) {
+ to = normalizeBrazilianNumber(to);
+ return axios.post(
+ // WA_PHONE_NUMBER_ID is Meta's numeric Phone Number ID (found in Meta Developer Console),
+ // NOT the WhatsApp phone number itself (e.g. +1234567890).
+ `${BASE_URL}/${process.env.WA_PHONE_NUMBER_ID}/messages`,
+ {
+ messaging_product: 'whatsapp',
+ to,
+ type: 'text',
+ text: { body },
+ },
+ { headers: headers() }
+ );
+}
+
+async function sendInteractiveButtons(to, bodyText, buttons) {
+ to = normalizeBrazilianNumber(to);
+ return axios.post(
+ `${BASE_URL}/${process.env.WA_PHONE_NUMBER_ID}/messages`,
+ {
+ messaging_product: 'whatsapp',
+ to,
+ type: 'interactive',
+ interactive: {
+ type: 'button',
+ body: { text: bodyText },
+ action: {
+ buttons: buttons.map((btn) => ({
+ type: 'reply',
+ reply: { id: btn.id, title: btn.title },
+ })),
+ },
+ },
+ },
+ { headers: headers() }
+ );
+}
+
+module.exports = { sendText, sendInteractiveButtons };
diff --git a/src/store/conversations.js b/src/store/conversations.js
new file mode 100644
index 0000000..a6f4bcb
--- /dev/null
+++ b/src/store/conversations.js
@@ -0,0 +1,19 @@
+// In-memory conversation store β replace with Redis for production
+const store = new Map();
+
+function getSession(phoneNumber) {
+ if (!store.has(phoneNumber)) {
+ store.set(phoneNumber, {
+ history: [], // Claude message history [{role, content}]
+ handedOff: false, // true once forwarded to Chatwoot
+ greeted: false, // true after welcome menu sent
+ });
+ }
+ return store.get(phoneNumber);
+}
+
+function clearSession(phoneNumber) {
+ store.delete(phoneNumber);
+}
+
+module.exports = { getSession, clearSession };
diff --git a/terraform/main.tf b/terraform/main.tf
new file mode 100644
index 0000000..bf2b707
--- /dev/null
+++ b/terraform/main.tf
@@ -0,0 +1,188 @@
+terraform {
+ required_providers {
+ kubernetes = {
+ source = "hashicorp/kubernetes"
+ version = "~> 2.30"
+ }
+ }
+ backend "s3" {
+ bucket = "shell-whats"
+ key = "kubernetes/terraform.tfstate"
+ region = "auto"
+ endpoints = { s3 = "https://d17eb09b6bce2f90e16e800bb2a6baf9.r2.cloudflarestorage.com" }
+ skip_credentials_validation = true
+ skip_region_validation = true
+ skip_requesting_account_id = true
+ skip_metadata_api_check = true
+ skip_s3_checksum = true
+ }
+ required_version = ">= 1.6"
+}
+
+provider "kubernetes" {
+ config_path = var.kubeconfig_path
+ config_context = var.kubeconfig_context
+}
+
+locals {
+ app_name = "shell-whats"
+ labels = { app = local.app_name }
+}
+
+# ββ Secret ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
+
+resource "kubernetes_secret" "app" {
+ metadata {
+ name = "${local.app_name}-secret"
+ namespace = var.namespace
+ }
+
+ data = {
+ WHATSAPP_TOKEN = var.whatsapp_token
+ ANTHROPIC_API_KEY = var.anthropic_api_key
+ CHATWOOT_API_KEY = var.chatwoot_api_key
+ }
+}
+
+# ββ ConfigMap βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
+
+resource "kubernetes_config_map" "app" {
+ metadata {
+ name = "${local.app_name}-config"
+ namespace = var.namespace
+ }
+
+ data = {
+ NODE_ENV = "production"
+ PORT = "3000"
+ PHONE_NUMBER_ID = var.phone_number_id
+ VERIFY_TOKEN = var.verify_token
+ CHATWOOT_URL = var.chatwoot_url
+ CHATWOOT_INBOX_ID = var.chatwoot_inbox_id
+ CHATWOOT_ACCOUNT_ID = var.chatwoot_account_id
+ }
+}
+
+# ββ Deployment ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
+
+resource "kubernetes_deployment" "app" {
+ metadata {
+ name = local.app_name
+ namespace = var.namespace
+ labels = local.labels
+ }
+
+ spec {
+ replicas = var.replicas
+
+ selector {
+ match_labels = local.labels
+ }
+
+ template {
+ metadata {
+ labels = local.labels
+ }
+
+ spec {
+ container {
+ name = local.app_name
+ image = var.image
+
+ port {
+ container_port = 3000
+ protocol = "TCP"
+ }
+
+ # Non-secret env vars from ConfigMap
+ env_from {
+ config_map_ref {
+ name = kubernetes_config_map.app.metadata[0].name
+ }
+ }
+
+ # Secrets injected individually
+ env {
+ name = "WHATSAPP_TOKEN"
+ value_from {
+ secret_key_ref {
+ name = kubernetes_secret.app.metadata[0].name
+ key = "WHATSAPP_TOKEN"
+ }
+ }
+ }
+
+ env {
+ name = "ANTHROPIC_API_KEY"
+ value_from {
+ secret_key_ref {
+ name = kubernetes_secret.app.metadata[0].name
+ key = "ANTHROPIC_API_KEY"
+ }
+ }
+ }
+
+ env {
+ name = "CHATWOOT_API_KEY"
+ value_from {
+ secret_key_ref {
+ name = kubernetes_secret.app.metadata[0].name
+ key = "CHATWOOT_API_KEY"
+ }
+ }
+ }
+
+ resources {
+ requests = {
+ cpu = "100m"
+ memory = "128Mi"
+ }
+ limits = {
+ cpu = "500m"
+ memory = "256Mi"
+ }
+ }
+
+ liveness_probe {
+ http_get {
+ path = "/health"
+ port = 3000
+ }
+ initial_delay_seconds = 10
+ period_seconds = 30
+ }
+
+ readiness_probe {
+ http_get {
+ path = "/health"
+ port = 3000
+ }
+ initial_delay_seconds = 5
+ period_seconds = 10
+ }
+ }
+ }
+ }
+ }
+}
+
+# ββ Service βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
+
+resource "kubernetes_service" "app" {
+ metadata {
+ name = local.app_name
+ namespace = var.namespace
+ labels = local.labels
+ }
+
+ spec {
+ selector = local.labels
+ type = var.service_type
+
+ port {
+ port = 80
+ target_port = 3000
+ protocol = "TCP"
+ }
+ }
+}
diff --git a/terraform/outputs.tf b/terraform/outputs.tf
new file mode 100644
index 0000000..36295a6
--- /dev/null
+++ b/terraform/outputs.tf
@@ -0,0 +1,14 @@
+output "service_name" {
+ description = "Kubernetes service name"
+ value = kubernetes_service.app.metadata[0].name
+}
+
+output "service_cluster_ip" {
+ description = "ClusterIP assigned to the service"
+ value = kubernetes_service.app.spec[0].cluster_ip
+}
+
+output "deployment_name" {
+ description = "Kubernetes deployment name"
+ value = kubernetes_deployment.app.metadata[0].name
+}
diff --git a/terraform/terraform.tfvars.example b/terraform/terraform.tfvars.example
new file mode 100644
index 0000000..156c1e7
--- /dev/null
+++ b/terraform/terraform.tfvars.example
@@ -0,0 +1,16 @@
+# Copy to terraform.tfvars and fill in real values β never commit that file
+image = "registry.example.com/shell-whats:latest"
+namespace = "bots"
+replicas = 1
+service_type = "ClusterIP"
+kubeconfig_context = "k3s-prod"
+
+phone_number_id = "1234567890"
+verify_token = "my-secret-verify-token"
+chatwoot_url = "https://chatwoot.example.com"
+chatwoot_inbox_id = "1"
+
+# Sensitive β prefer TF_VAR_* env vars instead of this file
+whatsapp_token = ""
+anthropic_api_key = ""
+chatwoot_api_key = ""
diff --git a/terraform/variables.tf b/terraform/variables.tf
new file mode 100644
index 0000000..04386dd
--- /dev/null
+++ b/terraform/variables.tf
@@ -0,0 +1,81 @@
+variable "kubeconfig_path" {
+ description = "Path to kubeconfig file"
+ type = string
+ default = "~/.kube/config"
+}
+
+variable "kubeconfig_context" {
+ description = "Kubernetes context to use"
+ type = string
+ default = ""
+}
+
+variable "namespace" {
+ description = "Kubernetes namespace"
+ type = string
+ default = "default"
+}
+
+variable "image" {
+ description = "Docker image for the app (e.g. registry.example.com/shell-whats:latest)"
+ type = string
+}
+
+variable "replicas" {
+ description = "Number of pod replicas"
+ type = number
+ default = 1
+}
+
+variable "service_type" {
+ description = "Kubernetes service type (ClusterIP, NodePort, LoadBalancer)"
+ type = string
+ default = "ClusterIP"
+}
+
+# ββ App secrets (sensitive) βββββββββββββββββββββββββββββββββββββββββββββββββββ
+
+variable "whatsapp_token" {
+ description = "Meta WhatsApp Cloud API access token"
+ type = string
+ sensitive = true
+}
+
+variable "anthropic_api_key" {
+ description = "Anthropic API key"
+ type = string
+ sensitive = true
+}
+
+variable "chatwoot_api_key" {
+ description = "Chatwoot API access token"
+ type = string
+ sensitive = true
+}
+
+# ββ App config ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
+
+variable "phone_number_id" {
+ description = "Meta WhatsApp Phone Number ID"
+ type = string
+}
+
+variable "verify_token" {
+ description = "Webhook verify token (self-defined, must match Meta dashboard)"
+ type = string
+}
+
+variable "chatwoot_url" {
+ description = "Chatwoot base URL (e.g. https://chatwoot.example.com)"
+ type = string
+}
+
+variable "chatwoot_inbox_id" {
+ description = "Chatwoot inbox ID for WhatsApp conversations"
+ type = string
+}
+
+variable "chatwoot_account_id" {
+ description = "Chatwoot account ID"
+ type = string
+}