.gitea/workflows/cicd.yaml

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+name: Build, Test and Deploy
+
+on:
+  push:
+    branches:
+      - main
+      - int
+      - dev
+
+jobs:
+  test-backend:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install dependencies
+        run: |
+          pip install -r backend/requirements.txt
+          pip install pytest httpx
+
+      - name: Run Backend Tests
+        run: |
+          export PYTHONPATH=$PYTHONPATH:$(pwd)/backend
+          pytest backend/tests
+
+  build-and-push:
+    needs: test-backend
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set Environment Variables
+        run: |
+          if [[ "${{ gitea.ref }}" == "refs/heads/main" ]]; then
+            echo "TAG=prod" >> $GITHUB_ENV
+          elif [[ "${{ gitea.ref }}" == "refs/heads/int" ]]; then
+            echo "TAG=int" >> $GITHUB_ENV
+          else
+            echo "TAG=dev" >> $GITHUB_ENV
+          fi
+
+      - name: Login to Gitea Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ secrets.REGISTRY_URL }}
+          username: ${{ secrets.GITEA_USER }}
+          password: ${{ secrets.GITEA_TOKEN }}
+
+      - name: Build and Push Backend
+        uses: docker/build-push-action@v4
+        with:
+          context: ./backend
+          push: true
+          tags: ${{ secrets.REGISTRY_URL }}/${{ gitea.repository_owner }}/print-calculator-backend:${{ env.TAG }}
+
+      - name: Build and Push Frontend
+        uses: docker/build-push-action@v4
+        with:
+          context: ./frontend
+          push: true
+          tags: ${{ secrets.REGISTRY_URL }}/${{ gitea.repository_owner }}/print-calculator-frontend:${{ env.TAG }}
+
+  deploy:
+    needs: build-and-push
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set Deployment Vars
+        run: |
+          if [[ "${{ gitea.ref }}" == "refs/heads/main" ]]; then
+            echo "ENV=prod" >> $GITHUB_ENV
+            echo "TAG=prod" >> $GITHUB_ENV
+          elif [[ "${{ gitea.ref }}" == "refs/heads/int" ]]; then
+            echo "ENV=int" >> $GITHUB_ENV
+            echo "TAG=int" >> $GITHUB_ENV
+          else
+            echo "ENV=dev" >> $GITHUB_ENV
+            echo "TAG=dev" >> $GITHUB_ENV
+          fi
+
+      - name: Create Remote Directory
+        uses: appleboy/ssh-action@v0.1.10
+        with:
+          host: ${{ secrets.SERVER_HOST }}
+          username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          script: mkdir -p /mnt/user/appdata/print-calculator/${{ env.ENV }}/
+
+      - name: Copy Compose File to Server
+        uses: appleboy/scp-action@v0.1.4
+        with:
+          host: ${{ secrets.SERVER_HOST }}
+          username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          source: "docker-compose.deploy.yml"
+          target: "/mnt/user/appdata/print-calculator/${{ env.ENV }}/"
+
+      - name: Copy Env File to Server
+        uses: appleboy/scp-action@v0.1.4
+        with:
+          host: ${{ secrets.SERVER_HOST }}
+          username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          source: "deploy/envs/${{ env.ENV }}.env"
+          target: "/mnt/user/appdata/print-calculator/${{ env.ENV }}/.env"
+
+      - name: Execute Remote Deployment
+        uses: appleboy/ssh-action@v0.1.10
+        with:
+          host: ${{ secrets.SERVER_HOST }}
+          username: ${{ secrets.SERVER_USER }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          script: |
+            cd /mnt/user/appdata/print-calculator/${{ env.ENV }}/
+            
+            # Rename the copied env file to strictly '.env' so docker compose picks it up automatically
+            mv ${{ env.ENV }}.env .env
+            
+            # Login to registry
+            echo ${{ secrets.GITEA_TOKEN }} | docker login ${{ secrets.REGISTRY_URL }} -u ${{ secrets.GITEA_USER }} --password-stdin
+            
+            # Pull new images
+            # We force reading from .env just to be safe, though default behavior does it too.
+            docker compose --env-file .env -f docker-compose.deploy.yml pull
+            
+            # Start/Update services
+            # TAG is inside .env now, so we don't even need to pass it explicitly!
+            docker compose --env-file .env -f docker-compose.deploy.yml up -d --remove-orphans

GEMINI.md

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+# GEMINI Project Context
+
+Questo file serve a dare contesto all'AI (Antigravity/Gemini) sulla struttura e logica del progetto.
+
+## Project Overview
+**Nome**: Print Calculator
+**Scopo**: Calcolare costi e tempi di stampa 3D da file STL.
+**Stack**:
+- **Backend**: Python (FastAPI), libreria `trimesh` per analisi geometrica.
+- **Frontend**: Angular 19 (TypeScript).
+
+## Architecture
+
+### Backend (`/backend`)
+- **`main.py`**: Entrypoint dell'applicazione FastAPI.
+    - Definisce l'API `POST /calculate/stl`.
+    - Gestisce l'upload del file, invoca lo slicer e restituisce il preventivo.
+    - Configura CORS per permettere chiamate dal frontend.
+- **`slicer.py`**: Wrappa l'eseguibile di **OrcaSlicer** per effettuare lo slicing reale del modello.
+    - Gestisce i profili di stampa (Macchina, Processo, Filamento).
+    - Crea configurazioni on-the-fly per supportare mesh di grandi dimensioni.
+- **`calculator.py`**: Analizza il G-Code generato.
+    - `GCodeParser`: Estrae tempo di stampa e materiale usato dai metadati del G-Code.
+    - `QuoteCalculator`: Applica i costi (orari, energia, materiale) per generare il prezzo finale.
+
+### Frontend (`/frontend`)
+- Applicazione Angular standard.
+- Usa Angular Material.
+- Service per upload STL e visualizzazione preventivo.
+
+## Key Concepts
+- **Real Slicing**: Il backend esegue un vero slicing usando OrcaSlicer in modalità headless. Questo garantisce stime di tempo e materiale estremamente precise, identiche a quelle che si otterrebbero preparando il file per la stampa.
+- **G-Code Parsing**: Invece di stimare geometricamente, l'applicazione legge direttamene i commenti generati dallo slicer nel G-Code (es. `estimated printing time`, `filament used`).
+
+## Development Notes
+- Per eseguire il backend serve `uvicorn`.
+- Il frontend richiede `npm install` al primo avvio.
+- Le configurazioni di stampa (layer height, wall thickness, infill) sono attualmente hardcoded o con valori di default nel backend, ma potrebbero essere esposte come parametri API in futuro.

deploy/envs/dev.env

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+REGISTRY_URL=git.joekung.ch
+REPO_OWNER=JoeKung
+ENV=dev
+TAG=dev
+
+# Ports
+BACKEND_PORT=18002
+FRONTEND_PORT=18082
+
+# Application Config
+FILAMENT_COST_PER_KG=22.0
+MACHINE_COST_PER_HOUR=2.50
+ENERGY_COST_PER_KWH=0.30
+PRINTER_POWER_WATTS=150
+MARKUP_PERCENT=20

deploy/envs/int.env

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+REGISTRY_URL=git.joekung.ch
+REPO_OWNER=JoeKung
+ENV=int
+TAG=int
+
+# Ports
+BACKEND_PORT=18001
+FRONTEND_PORT=18081
+
+# Application Config
+FILAMENT_COST_PER_KG=22.0
+MACHINE_COST_PER_HOUR=2.50
+ENERGY_COST_PER_KWH=0.30
+PRINTER_POWER_WATTS=150
+MARKUP_PERCENT=20

deploy/envs/prod.env

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+REGISTRY_URL=git.joekung.ch
+REPO_OWNER=JoeKung
+ENV=prod
+TAG=prod
+
+# Ports
+BACKEND_PORT=8000
+FRONTEND_PORT=80
+
+# Application Config
+FILAMENT_COST_PER_KG=22.0
+MACHINE_COST_PER_HOUR=2.50
+ENERGY_COST_PER_KWH=0.30
+PRINTER_POWER_WATTS=150
+MARKUP_PERCENT=20

docker-compose.deploy.yml

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+version: '3.8'
+
+services:
+  backend:
+    # L'immagine usa il tag specificato nel file .env o passato da riga di comando
+    image: ${REGISTRY_URL}/${REPO_OWNER}/print-calculator-backend:${TAG}
+    container_name: print-calculator-backend-${ENV}
+    ports:
+      - "${BACKEND_PORT}:8000"
+    environment:
+      - FILAMENT_COST_PER_KG=${FILAMENT_COST_PER_KG}
+      - MACHINE_COST_PER_HOUR=${MACHINE_COST_PER_HOUR}
+      - ENERGY_COST_PER_KWH=${ENERGY_COST_PER_KWH}
+      - PRINTER_POWER_WATTS=${PRINTER_POWER_WATTS}
+      - MARKUP_PERCENT=${MARKUP_PERCENT}
+      - TEMP_DIR=/app/temp
+      - PROFILES_DIR=/app/profiles
+    restart: unless-stopped
+    volumes:
+      - backend_profiles_${ENV}:/app/profiles
+
+  frontend:
+    image: ${REGISTRY_URL}/${REPO_OWNER}/print-calculator-frontend:${TAG}
+    container_name: print-calculator-frontend-${ENV}
+    ports:
+      - "${FRONTEND_PORT}:80"
+    depends_on:
+      - backend
+    restart: unless-stopped
+
+volumes:
+  backend_profiles_prod:
+  backend_profiles_int:
+  backend_profiles_dev: