name: ScriptPython
on:
  push:
    branches:
      - main
    paths:
      - 'Outputs/SHP/*.shp'
      - 'Outputs/DB_Synthese-PSM_LARRA.sql'
  workflow_dispatch:
permissions:
  contents: write
concurrency:
  group: pyThtoQgis
  cancel-in-progress: false
jobs:
  ScriptPython:
    runs-on: ubuntu-24.04
    steps:
      # ============================================================
      # 1. Checkout
      # ============================================================
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0
          
      # ============================================================
      # 2. Vérification des fichiers SHP et SQL modifiés
      #    ou lancement manuel
      # ============================================================
      - name: Check SHP and SQL changes
        id: changed
        shell: bash
        run: |
          echo "========================================"
          echo "VÉRIFICATION DES MODIFICATIONS"
          echo "========================================"
      
          # --------------------------------------------------------
          # Lancement manuel
          # --------------------------------------------------------
          if [ "$GITHUB_EVENT_NAME" = "workflow_dispatch" ]; then
            echo "Workflow lancé manuellement."
            echo "changed=true" >> "$GITHUB_OUTPUT"
            echo "manual=true" >> "$GITHUB_OUTPUT"
            echo "shp=true" >> "$GITHUB_OUTPUT"
            echo "sql=true" >> "$GITHUB_OUTPUT"
            exit 0
          fi
      
          echo "========================================"
          echo "Recherche des fichiers modifiés"
          echo "========================================"
      
          # --------------------------------------------------------
          # SHP ajoutés ou modifiés
          # --------------------------------------------------------
          SHP_FILES=$(git diff-tree \
            --no-commit-id \
            --name-only \
            --diff-filter=AM \
            -r \
            "$GITHUB_SHA" \
            -- 'Outputs/SHP/*.shp')
      
          # --------------------------------------------------------
          # SQL ajouté ou modifié
          # --------------------------------------------------------
          SQL_FILE="Outputs/DB_Synthese-PSM_LARRA.sql"    
          SQL_CHANGED=$(git diff-tree \
            --no-commit-id \
            --name-only \
            --diff-filter=AM \
            -r \
            "$GITHUB_SHA" \
            -- "$SQL_FILE")
      
          # --------------------------------------------------------
          # Affichage
          # --------------------------------------------------------
          echo ""
          echo "SHP ajoutés/modifiés :"
          if [ -n "$SHP_FILES" ]; then
            echo "$SHP_FILES"
            echo "shp=true" >> "$GITHUB_OUTPUT"
          else
            echo "Aucun"
            echo "shp=false" >> "$GITHUB_OUTPUT"
          fi
      
          echo ""
          echo "SQL ajouté/modifié :"
          if [ -n "$SQL_CHANGED" ]; then
            echo "$SQL_CHANGED"
            echo "sql=true" >> "$GITHUB_OUTPUT"
          else
            echo "Aucun"
            echo "sql=false" >> "$GITHUB_OUTPUT"
          fi
      
          # --------------------------------------------------------
          # Décision de poursuivre
          # --------------------------------------------------------
          if [ -n "$SHP_FILES" ] || [ -n "$SQL_CHANGED" ]; then
            echo ""
            echo "SHP ou SQL ajouté/modifié : CONTINUER"
            echo "changed=true" >> "$GITHUB_OUTPUT"
          else
            echo ""
            echo "Aucun SHP ni SQL ajouté/modifié."
            echo "changed=false" >> "$GITHUB_OUTPUT"
          fi
      
          echo "manual=false" >> "$GITHUB_OUTPUT"    
      
      # ============================================================
      # 3.1 Arrêt si aucun SHP/SQL et pas de lancement manuel
      # ============================================================
      - name: Stop if no SHP or SQL changes
        if: steps.changed.outputs.changed != 'true'
        shell: bash
        run: |
          echo "Aucun SHP ou SQL ajouté/modifié."
          echo "Arrêt du workflow."
      
      # ============================================================
      # 3.2 Vérification de la base SQL
      # ============================================================
      - name: Check SQL database
        if: steps.changed.outputs.changed == 'true'
        shell: bash -el {0}
        run: |
          set -e    
          echo "========================================"
          echo "CHECK DATABASE"
          echo "========================================"      
          SQL_FILE="Outputs/DB_Synthese-PSM_LARRA.sql"      
          if [ ! -f "$SQL_FILE" ]; then
            echo "ERREUR : fichier SQL introuvable :"
            echo "$SQL_FILE"
            exit 1
          fi
      
          echo "Base SQL trouvée :"
          ls -lh "$SQL_FILE"

      # ============================================================
      # 4. Micromamba
      # IMPORTANT :
      # PAS de GDAL ici.
      # GDAL sera fourni par notre package précompilé.
      # ============================================================
      - name: Setup Micromamba
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        uses: mamba-org/setup-micromamba@v3.2.1
        with:
          environment-name: pyThtoQgis
          create-args: >-
            python=3.12
            numpy
            sfcgal=2.2
            geos
            proj
            sqlite
            libtiff
            libjpeg-turbo
            libpng
            zlib
            curl
            openssl
          init-shell: bash
          cache-environment: true
          cache-downloads: true

      # ============================================================
      # 5. Informations environnement
      # ============================================================
      - name: Environment information
        if: steps.changed.outputs.shp == 'true'  || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          echo "========================================"
          echo "ENVIRONMENT"
          echo "========================================"
          echo "CONDA_PREFIX=$CONDA_PREFIX"
          python --version
          echo ""
          conda list | grep -E \
            "python|numpy|sfcgal|geos|proj|sqlite"

      # ============================================================
      # 6. Téléchargement package GDAL
      # ============================================================
      - name: Download GDAL + SFCGAL package
        if: steps.changed.outputs.shp == 'true'  || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          set -e
          GDAL_VERSION=3.13.3
          PACKAGE_NAME="gdal-${GDAL_VERSION}-sfcgal-2.2-geos-3.14.1-ubuntu-24.04"
          TAG="gdal-sfcgal-${GDAL_VERSION}"

          echo "========================================"
          echo "GDAL PACKAGE"
          echo "========================================"
          echo "Release : $TAG"
          echo "Package : $PACKAGE_NAME"
          gh release download "$TAG" \
            --repo "$GITHUB_REPOSITORY" \
            --pattern "${PACKAGE_NAME}.tar.gz" \
            --dir "$RUNNER_TEMP"
          echo ""
          echo "Package téléchargé :"
          ls -lh \
            "$RUNNER_TEMP/${PACKAGE_NAME}.tar.gz"

      # ============================================================
      # 7. Installation package GDAL
      # ============================================================
      - name: Installation GDAL package
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          set -e
          GDAL_VERSION=3.13.3
          PACKAGE_NAME="gdal-${GDAL_VERSION}-sfcgal-2.2-geos-3.14.1-ubuntu-24.04"
          PACKAGE="$RUNNER_TEMP/${PACKAGE_NAME}.tar.gz"
          EXTRACT_DIR="$RUNNER_TEMP/gdal-extract"

          echo "========================================"
          echo "INSTALLATION GDAL"
          echo "========================================"

          # ========================================================
          # Vérification du package
          # ========================================================
          if [ ! -f "$PACKAGE" ]; then
              echo "ERREUR : package introuvable :"
              echo "$PACKAGE"
              exit 1
          fi

          # ========================================================
          # Extraction
          # ========================================================
          rm -rf "$EXTRACT_DIR"
          mkdir -p "$EXTRACT_DIR"
          tar \
            -xzf \
            "$PACKAGE" \
            -C "$EXTRACT_DIR"

          # ========================================================
          # Affichage STRUCTURE REELLE
          # ========================================================
          echo ""
          echo "========================================"
          echo "STRUCTURE DU PACKAGE"
          echo "========================================"
          find "$EXTRACT_DIR" \
            -maxdepth 6 \
            -print \
            | sort

          # ========================================================
          # Répertoire racine
          # ========================================================
          GDAL_DIR="$EXTRACT_DIR/$PACKAGE_NAME"

          if [ ! -d "$GDAL_DIR" ]; then
              echo ""
              echo "ERREUR : répertoire package absent :"
              echo "$GDAL_DIR"
              exit 1
          fi
          echo ""
          echo "GDAL_DIR :"
          echo "$GDAL_DIR"

          # ========================================================
          # Vérification structure attendue
          # ========================================================
          echo ""
          echo "========================================"
          echo "VERIFICATION"
          echo "========================================"
          if [ ! -d "$GDAL_DIR/bin" ]; then
              echo "ERREUR : bin/ absent"
              exit 1
          fi
          if [ ! -d "$GDAL_DIR/lib" ]; then
              echo "ERREUR : lib/ absent"
              exit 1
          fi

          # ========================================================
          # Installation BIN
          # ========================================================
          echo ""
          echo "Installation bin/..."
          cp -av \
            "$GDAL_DIR/bin/." \
            "$CONDA_PREFIX/bin/"

          # ========================================================
          # Installation LIB
          # ========================================================
          echo ""
          echo "Installation lib/..."
          cp -av \
            "$GDAL_DIR/lib/." \
            "$CONDA_PREFIX/lib/"
          # ========================================================
          # Installation SHARE
          # ========================================================
          if [ -d "$GDAL_DIR/share" ]; then
              echo ""
              echo "Installation share/..."
              cp -av \
                "$GDAL_DIR/share/." \
                "$CONDA_PREFIX/share/"
          fi

          # ========================================================
          # Vérification GDAL
          # ========================================================
          echo ""
          echo "========================================"
          echo "VERIFICATION GDAL"
          echo "========================================"
          echo ""
          echo "gdalinfo :"
          which gdalinfo
          gdalinfo --version
          echo ""
          echo "GDAL Python :"
          python - <<'PY'
          from osgeo import gdal
          from osgeo import ogr
          print("GDAL :", gdal.VersionInfo("--version"))
          print("OGR drivers :", ogr.GetDriverCount())
          PY
          echo ""
          echo "========================================"
          echo "GDAL INSTALLE"
          echo "========================================"

      # ============================================================
      # 8. Vérification GDAL
      # ============================================================
      - name: Check GDAL
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          set -e
          echo "========================================"
          echo "GDAL"
          echo "========================================"
          which gdalinfo
          gdalinfo --version
          echo ""
          echo "Python GDAL :"
          python - <<'PY'
          from osgeo import gdal
          print(
              gdal.VersionInfo("--version")
          )
          print()
          print(
              gdal.VersionInfo("--build-info")
          )
          PY


      # ============================================================
      # 9. Vérification SFCGAL
      # ============================================================
      - name: Check SFCGAL linkage
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          set -e
          echo "========================================"
          echo "GDAL / SFCGAL"
          echo "========================================"
          ldd "$CONDA_PREFIX/lib/libgdal.so" \
            | grep -Ei "sfcgal|geos"

      # ============================================================
      # 10. Test SFCGAL
      # ============================================================
      - name: Test SFCGAL via OGR
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          python - <<'PY'
          from osgeo import ogr
          from osgeo import gdal

          print("========================================")
          print("TEST SFCGAL")
          print("========================================")

          print(gdal.VersionInfo("--version"))
          wkt = """
          POLYHEDRALSURFACE Z (
              (
                  (0 0 0,
                   10 0 0,
                   10 10 0,
                   0 10 0,
                   0 0 0)
              )
          )
          """
          geom = ogr.CreateGeometryFromWkt(wkt)
          if geom is None:
              raise RuntimeError(
                  "Impossible de créer la géométrie 3D"
              )
          print("Type :", geom.GetGeometryName())
          print("Geometry type :", geom.GetGeometryType())
          print("Has Z :", ogr.GT_HasZ(geom.GetGeometryType()))
          valid = geom.IsValid()
          print("IsValid() :", valid)
          print()
          print("SFCGAL accessible par OGR : OK")
          PY

      # ============================================================
      # 11. Dépendances Python
      # ============================================================
      - name: Install Python dependencies
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.sql == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          python -m pip install --upgrade pip
          pip install alive-progress
          pip install pandas
          pip install matplotlib

      # ============================================================
      # 12. Affichage des SHP
      # ============================================================
      - name: List SHP input files
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          echo "========================================"
          echo "SHP INPUT"
          echo "========================================"
          find Outputs/SHP \
            -maxdepth 1 \
            -type f \
            -name "*.shp" \
            -print

      # ============================================================
      # 13. Exécution pyThtoQgis
      # ============================================================
      - name: Run pyThtoQgis
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          set -e
          echo "========================================"
          echo "pyThtoQgis"
          echo "========================================"
          cd Scripts/pyThtoQgis
          python pyThtoQgis.py --folder "../../Outputs/SHP/"

      # ============================================================
      # 14. Exécution pyThStat
      # ============================================================           
      - name: Run pyThStat
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash -el {0}
        run: |
          set -e
          echo "========================================"
          echo "pyThStat"
          echo "========================================"
          ls -l
          cd Scripts/pyThStat
          echo "========================================"
          ls -l
          python pythStat.py --file "../../Outputs/DB_Synthese-PSM_LARRA.sql"

      # ============================================================
      # 15. Fichiers produits
      # ============================================================
      - name: Show generated files
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.sql == 'true' || steps.changed.outputs.manual == 'true'
        shell: bash
        run: |
          echo "========================================"
          echo "GENERATED FILES"
          echo "========================================"
          git status --short
          echo ""
          git diff --stat

      # ============================================================
      # 16. Commit
      # ============================================================
      - name: Commit generated files
        if: steps.changed.outputs.shp == 'true' || steps.changed.outputs.sql == 'true' || steps.changed.outputs.manual == 'true'
        uses: stefanzweifel/git-auto-commit-action@v7
        env:
          COMMIT_DATE: ${{ steps.changed.outputs.commit_date }}
        with:
          commit_message: "Auto-generate outputs from ScriptPython - ${{ env.COMMIT_DATE }}"
          commit_user_name: "github-actions[bot]"
          commit_user_email: "41898282+github-actions[bot]@users.noreply.github.com"
          commit_author: "github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>"