{ lib
, stdenv
, makeWrapper
, rsync
, gnused
, gawk
, docker-compose
}:

stdenv.mkDerivation {
  pname = "usda-vision";
  version = "1.0.0";

  # Use the directory from this repository with explicit source filtering
  src = lib.cleanSourceWith {
    src = ./.;
    filter = path: type:
      let
        baseName = baseNameOf path;
      in
      # Exclude git, but include everything else
      baseName != ".git" &&
      baseName != ".cursor" &&
      baseName != "__pycache__" &&
      baseName != "node_modules" &&
      baseName != ".venv" &&
      baseName != ".age" &&
      baseName != "flake.nix" &&
      baseName != "flake.lock" &&
      baseName != "package.nix" &&
      baseName != "camera-sdk.nix";
  };

  nativeBuildInputs = [ makeWrapper rsync ];

  # Don't run these phases, we'll do everything in installPhase
  dontBuild = true;
  dontConfigure = true;

  installPhase = ''
    mkdir -p $out/opt/usda-vision

    # Debug: show what's in source
    echo "Source directory contents:"
    ls -la $src/ || true

    # Process docker-compose.yml - replace paths and configure SDK from Nix
    if [ -f $src/docker-compose.yml ]; then
      # Basic path replacements with sed
      ${gnused}/bin/sed \
        -e 's|env_file:.*management-dashboard-web-app/\.env|env_file: /var/lib/usda-vision/.env|g' \
        -e 's|\./management-dashboard-web-app/\.env|/var/lib/usda-vision/.env|g' \
        -e 's|\./management-dashboard-web-app|/var/lib/usda-vision/management-dashboard-web-app|g' \
        -e 's|\./media-api|/var/lib/usda-vision/media-api|g' \
        -e 's|\./video-remote|/var/lib/usda-vision/video-remote|g' \
        -e 's|\./scheduling-remote|/var/lib/usda-vision/scheduling-remote|g' \
        -e 's|\./vision-system-remote|/var/lib/usda-vision/vision-system-remote|g' \
        -e 's|\./camera-management-api|/var/lib/usda-vision/camera-management-api|g' \
        $src/docker-compose.yml > $TMPDIR/docker-compose-step1.yml

      # Remove SDK installation blocks using awk for better multi-line handling
      ${gawk}/bin/awk '
        /# Only install system packages if not already installed/ { skip=1 }
        skip && /^        fi$/ { skip=0; next }
        /# Install camera SDK if not already installed/ { skip_sdk=1 }
        skip_sdk && /^        fi;$/ { skip_sdk=0; next }
        !skip && !skip_sdk { print }
      ' $TMPDIR/docker-compose-step1.yml > $TMPDIR/docker-compose.yml

      rm -f $TMPDIR/docker-compose-step1.yml
    fi

    # Copy all application files using rsync with chmod
    ${rsync}/bin/rsync -av \
      --chmod=Du+w \
      --exclude='.git' \
      --exclude='docker-compose.yml' \
      --exclude='.env' \
      --exclude='*.age' \
      --exclude='flake.nix' \
      --exclude='flake.lock' \
      --exclude='package.nix' \
      --exclude='camera-sdk.nix' \
      --exclude='management-dashboard-web-app/.env' \
      $src/ $out/opt/usda-vision/

    # Copy the processed docker-compose.yml
    if [ -f $TMPDIR/docker-compose.yml ]; then
      cp $TMPDIR/docker-compose.yml $out/opt/usda-vision/docker-compose.yml
    fi

    # Verify files were copied
    echo "Destination directory contents:"
    ls -la $out/opt/usda-vision/ || true

    # Create convenience scripts
    mkdir -p $out/bin

    cat > $out/bin/usda-vision-start <<'EOF'
#!/usr/bin/env bash
cd $out/opt/usda-vision
${docker-compose}/bin/docker-compose up -d --build
EOF

    cat > $out/bin/usda-vision-stop <<'EOF'
#!/usr/bin/env bash
cd $out/opt/usda-vision
${docker-compose}/bin/docker-compose down
EOF

    cat > $out/bin/usda-vision-logs <<'EOF'
#!/usr/bin/env bash
cd $out/opt/usda-vision
${docker-compose}/bin/docker-compose logs -f "$@"
EOF

    cat > $out/bin/usda-vision-restart <<'EOF'
#!/usr/bin/env bash
cd $out/opt/usda-vision
${docker-compose}/bin/docker-compose restart "$@"
EOF

    chmod +x $out/bin/usda-vision-*
  '';

  meta = with lib; {
    description = "USDA Vision camera management system";
    maintainers = [ "UGA Innovation Factory" ];
    platforms = platforms.linux;
  };
}