hello world

.dockerignore

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+node_modules
+Dockerfile*
+docker-compose*
+.dockerignore
+.git
+.github
+.gitignore
+README.md
+LICENSE
+.vscode
+Makefile
+helm-charts
+.env
+.editorconfig
+.idea
+coverage*

.github/workflows/build.yml

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+name: Build and Push Container
+
+on:
+  push:
+    branches:
+      - main
+  release:
+    types:
+      - published
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Build and Push Image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64
+          tags: |
+            ghcr.io/${{ github.repository }}:latest
+            ${{ github.event_name == 'release' && 'ghcr.io/${{ github.repository }}:${{ github.event.release.tag_name }}' || '' }}

.gitignore

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+/.idea
+.DS_Store
+/dist
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+*.test
+*.out
+vendor/
+go.work
+config.yaml
+credentials.json
+birdgpt

Dockerfile

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+FROM golang:1.23-alpine AS builder
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux go build -o /app/birdgpt ./cmd/main.go
+
+FROM alpine:latest
+WORKDIR /app
+COPY --from=builder /app/birdgpt .
+COPY config.yaml .
+VOLUME ["/app/config.yaml", "/app/credentials.json"]
+CMD ["/app/birdgpt"] 

LICENSE

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+Copyright 2024 Janyk Steenbeek
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# BirdGPT
+
+BirdGPT automatically processes invoices from your Gmail inbox and adds them to Moneybird. It uses GPT-4o to extract invoice details and can handle Dutch KVK and BTW numbers.
+
+
+- Automatically monitors Gmail for new invoices
+- Extracts invoice details using GPT-4o
+- Creates contacts and purchase invoices in Moneybird
+- Handles Dutch KVK and BTW numbers
+- Automatically matches correct tax rates
+- OAuth authentication for Gmail
+- Configurable email label and check interval
+
+[![GitHub release (latest by date)](https://img.shields.io/github/v/release/janyksteenbeek/birdgpt)](https://github.com/janyksteenbeek/birdgpt/releases)
+[![GitHub](https://img.shields.io/github/license/janyksteenbeek/birdgpt)](LICENSE.md)
+[![GitHub issues](https://img.shields.io/github/issues/janyksteenbeek/birdgpt)](https://github.com/janyksteenbeek/birdgpt/issues)
+
+## Prerequisits
+
+You need to request a few API keys to get started. Follow the steps below to get everything set up.
+
+### 1. Moneybird
+
+1. Go to [moneybird.com/user/applications/new](https://moneybird.com/user/applications/new)
+2. Create a personal token
+3. Note your administration ID from the URL when logged into Moneybird (format: /123456789)
+
+### 2. Gmail
+
+1. Go to [Google Cloud Console](https://console.cloud.google.com)
+2. Create a new project
+3. Enable Gmail API
+4. Create OAuth 2.0 credentials
+5. Download credentials and save as `credentials.json` in the project directory
+
+### 3. OpenAI
+
+1. Go to [platform.openai.com](https://platform.openai.com)
+2. Create an API key
+
+
+## Configuration
+
+Create a `config.yaml` file in the project root. See `config.example.yaml` for all available options.
+
+Required fields:
+- `moneybird.token`: Your Moneybird personal token
+- `moneybird.admin_id`: Your Moneybird administration ID
+- `gmail.credentials_file`: Path to your Gmail OAuth credentials file
+- `openai.api_key`: Your OpenAI API key
+
+
+## Running
+
+Build and run:
+
+```bash
+go build -o birdgpt cmd/main.go
+./birdgpt
+```
+
+On first run:
+1. You'll be prompted to visit a URL for Gmail authorization
+2. After authorizing, copy the code and paste it back in the terminal
+3. The application will start monitoring your emails
+
+> I highly recommend testing the application with a separate Moneybird administration before using it with your actual administration. The application is still in development and may contain bugs. You can create a sandbox administration for free [here](https://moneybird.com/administrations/sandboxes/new).
+
+## License
+
+BirdGPT is released under the MIT License. See the [LICENSE](LICENSE) file for more details.
+
+## Security
+
+If you discover any security-related issues, please email [[email protected]](mailto:[email protected]) instead of using the
+issue tracker. All security vulnerabilities will be promptly addressed.
+
+## Disclaimer
+
+This project is not affiliated with Moneybird, OpenAI or Google. 

cmd/main.go

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+package main
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/janyksteenbeek/birdgpt/config"
+	"github.com/janyksteenbeek/birdgpt/internal/gmail"
+	"github.com/janyksteenbeek/birdgpt/internal/moneybird"
+	"github.com/janyksteenbeek/birdgpt/internal/openai"
+	"github.com/janyksteenbeek/birdgpt/internal/processor"
+)
+
+func main() {
+	log.Println("[github.com/janyksteenbeek/birdgpt]")
+	log.Println("Starting invoice processor...")
+
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		log.Fatalf("Configuration error: %v", err)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	setupGracefulShutdown(cancel)
+
+	log.Println("Initializing clients...")
+	gmailClient, err := initializeGmail(ctx, cfg)
+	if err != nil {
+		log.Fatalf("Gmail initialization failed: %v", err)
+	}
+
+	moneybirdClient, err := moneybird.NewClient(cfg.Moneybird.Token, cfg.Moneybird.AdminID)
+	if err != nil {
+		log.Fatalf("Moneybird initialization failed: %v", err)
+	}
+
+	openaiClient := openai.NewClient(cfg.OpenAI.APIKey)
+
+	log.Println("Testing connections...")
+	if err := testConnections(ctx, cfg, gmailClient, moneybirdClient); err != nil {
+		log.Fatalf("Connection test failed: %v", err)
+	}
+
+	proc := processor.New(cfg, gmailClient, moneybirdClient, openaiClient)
+	log.Printf("Invoice processor started. Checking for new emails every %v...", cfg.App.SleepTime)
+	if err := proc.Run(ctx); err != nil && err != context.Canceled {
+		log.Fatalf("Processor error: %v", err)
+	}
+}
+
+func testConnections(ctx context.Context, cfg *config.Config, gmail *gmail.Client, moneybird *moneybird.Client) error {
+	if _, err := gmail.FetchEmails(ctx, cfg.Gmail.SearchLabel, time.Now().Add(-time.Minute)); err != nil {
+		return fmt.Errorf("gmail test failed: %w", err)
+	}
+
+	if _, err := moneybird.SearchContacts("test"); err != nil {
+		return fmt.Errorf("moneybird test failed: %w", err)
+	}
+
+	return nil
+}
+
+func setupGracefulShutdown(cancel context.CancelFunc) {
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+
+	go func() {
+		<-sigChan
+		log.Println("Cya later!")
+		cancel()
+	}()
+}
+
+func initializeGmail(ctx context.Context, cfg *config.Config) (*gmail.Client, error) {
+	client, authURL, err := gmail.Setup(ctx, cfg.Gmail.CredentialsFile, cfg.Gmail.Token)
+	if err != nil {
+		return nil, fmt.Errorf("gmail setup failed: %w", err)
+	}
+
+	if authURL != "" {
+		fmt.Printf("Visit this URL to authorize Gmail access:\n%s\n", authURL)
+		fmt.Print("Enter the authorization code: ")
+
+		scanner := bufio.NewScanner(os.Stdin)
+		scanner.Scan()
+
+		token, err := gmail.Exchange(ctx, cfg.Gmail.CredentialsFile, scanner.Text())
+		if err != nil {
+			return nil, fmt.Errorf("token exchange failed: %w", err)
+		}
+
+		cfg.Gmail.Token = token
+		if err := config.SaveConfig(cfg); err != nil {
+			return nil, fmt.Errorf("saving config: %w", err)
+		}
+
+		return initializeGmail(ctx, cfg)
+	}
+
+	return client, nil
+}

config.yaml.sample

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+moneybird:
+  client_id: ""
+  client_secret: ""
+  redirect_uri: "http://localhost:8080/callback"
+  token: ""
+  admin_id: ""
+
+gmail:
+  credentials_file: "credentials.json"
+  token: ""
+  search_label: "Invoices"
+
+openai:
+  api_key: ""
+
+app:
+  last_update: "2024-01-01T00:00:00Z"
+  sleep_time: "5m"
+  trigger_word: "invoice"