const fs = require('fs');
const path = require('path');

const stylePath = path.join(__dirname, '../public/style.json');
const tacticalStylePath = path.join(__dirname, '../public/tactical-style.json');

const baseStyle = JSON.parse(fs.readFileSync(stylePath, 'utf8'));

// Clone the base style and add custom tactical vector sources
const tacticalStyle = {
  ...baseStyle,
  name: "Intaleq Sovereign Tactical Military Style (منظومة الدفاع التكتيكية)",
  metadata: {
    ...baseStyle.metadata,
    version: "3.2.0-tactical",
    description: "Sovereign Military Tactical Style with Hillshade, Rock Escarpments, Cliffs, Retaining Walls, Berms, Wadis, Quarries, and Man-Made Obstacles"
  },
  sources: {
    ...baseStyle.sources,
    "tactical-obstacles": {
      type: "vector",
      tiles: ["https://tiles.intaleqapp.com/tactical_terrain_obstacles/{z}/{x}/{y}"],
      maxzoom: 16
    },
    "overture_land_cover": {
      type: "vector",
      tiles: ["https://tiles.intaleqapp.com/overture_land_cover/{z}/{x}/{y}"],
      maxzoom: 14
    }
  }
};

// Define Tactical Obstacle & Terrain Layers with explicit source-layer
const tacticalLayers = [
  // ── 1. OVERTURE LAND COVER (الصخور الجرداء والموانع الطبيعية من خرائط أوفرتشر) ──
  {
    id: "tactical-overture-barren-rock",
    type: "fill",
    source: "overture_land_cover",
    "source-layer": "overture_land_cover",
    filter: ["any",
      ["in", "subtype", "barren", "rock", "sand"],
      ["in", "class", "barren", "rock", "bare_ground"]
    ],
    paint: {
      "fill-color": "#78716c",
      "fill-opacity": 0.4
    }
  },
  {
    id: "tactical-overture-barren-outline",
    type: "line",
    source: "overture_land_cover",
    "source-layer": "overture_land_cover",
    filter: ["any",
      ["in", "subtype", "barren", "rock", "sand"],
      ["in", "class", "barren", "rock", "bare_ground"]
    ],
    paint: {
      "line-color": "#57534e",
      "line-width": 1.6,
      "line-dasharray": [3, 2]
    }
  },
  {
    id: "tactical-overture-wetland",
    type: "fill",
    source: "overture_land_cover",
    "source-layer": "overture_land_cover",
    filter: ["any",
      ["==", "subtype", "wetland"],
      ["==", "class", "wetland"]
    ],
    paint: {
      "fill-color": "#0d9488",
      "fill-opacity": 0.35
    }
  },

  // ── 2. NATURAL ROCK & TERRAIN POLYGONS (المقاطع والكتل الصخرية والمقالع) ──
  {
    id: "tactical-bare-rock-poly",
    type: "fill",
    source: "local-osm-polygons",
    "source-layer": "planet_osm_polygon",
    filter: ["in", "natural", "bare_rock", "rock", "scree", "shingle", "bedrock"],
    paint: {
      "fill-color": "#78716c",
      "fill-opacity": 0.45
    }
  },
  {
    id: "tactical-bare-rock-outline",
    type: "line",
    source: "local-osm-polygons",
    "source-layer": "planet_osm_polygon",
    filter: ["in", "natural", "bare_rock", "rock", "scree", "shingle", "bedrock"],
    paint: {
      "line-color": "#57534e",
      "line-width": 1.8,
      "line-dasharray": [3, 2]
    }
  },
  {
    id: "tactical-quarry-poly",
    type: "fill",
    source: "local-osm-polygons",
    "source-layer": "planet_osm_polygon",
    filter: ["any", ["==", "landuse", "quarry"], ["==", "man_made", "quarry"], ["==", "landuse", "surface_mining"]],
    paint: {
      "fill-color": "#d97706",
      "fill-opacity": 0.35
    }
  },
  {
    id: "tactical-quarry-outline",
    type: "line",
    source: "local-osm-polygons",
    "source-layer": "planet_osm_polygon",
    filter: ["any", ["==", "landuse", "quarry"], ["==", "man_made", "quarry"], ["==", "landuse", "surface_mining"]],
    paint: {
      "line-color": "#b45309",
      "line-width": 2.5,
      "line-dasharray": [4, 2]
    }
  },
  {
    id: "tactical-wetland-poly",
    type: "fill",
    source: "local-osm-polygons",
    "source-layer": "planet_osm_polygon",
    filter: ["any", ["==", "natural", "wetland"], ["==", "wetland", "marsh"], ["==", "natural", "marsh"]],
    paint: {
      "fill-color": "#0d9488",
      "fill-opacity": 0.35
    }
  },

  // ── 3. HYDROLOGICAL DEFILES & WADIS (مجاري الأودية والسيول الجافة) ──
  {
    id: "tactical-wadis-lines",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["in", "waterway", "wadi", "dry_stream", "drain", "ditch"],
    paint: {
      "line-color": "#0891b2",
      "line-width": 2.4,
      "line-dasharray": [3, 2],
      "line-opacity": 0.95
    }
  },

  // ── 4. CLIFFS & ESCARPMENTS (الجروف الصخرية الشاهقة والنتوءات الحادة) ──
  {
    id: "tactical-cliffs-casing",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["==", "natural", "cliff"],
    paint: {
      "line-color": "#451a03",
      "line-width": 5.0,
      "line-opacity": 0.95
    }
  },
  {
    id: "tactical-cliffs-inner",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["==", "natural", "cliff"],
    paint: {
      "line-color": "#dc2626",
      "line-width": 2.5,
      "line-dasharray": [2, 2]
    }
  },
  {
    id: "tactical-ridges-lines",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["in", "natural", "ridge", "arete"],
    paint: {
      "line-color": "#92400e",
      "line-width": 2.8,
      "line-dasharray": [4, 2]
    }
  },

  // ── 5. POSTGIS DEDICATED TACTICAL OBSTACLES TABLE (جدول الموانع التكتيكية المدمج) ──
  {
    id: "tactical-db-cliffs",
    type: "line",
    source: "tactical-obstacles",
    "source-layer": "tactical_terrain_obstacles",
    filter: ["==", "severity", "SEVERE_NO_GO"],
    paint: {
      "line-color": "#dc2626",
      "line-width": 4.5,
      "line-dasharray": [3, 1]
    }
  },
  {
    id: "tactical-db-retaining-walls",
    type: "line",
    source: "tactical-obstacles",
    "source-layer": "tactical_terrain_obstacles",
    filter: ["==", "severity", "RESTRICTED"],
    paint: {
      "line-color": "#e11d48",
      "line-width": 3.2
    }
  },
  {
    id: "tactical-db-barriers",
    type: "line",
    source: "tactical-obstacles",
    "source-layer": "tactical_terrain_obstacles",
    filter: ["==", "severity", "TACTICAL_BARRIER"],
    paint: {
      "line-color": "#f59e0b",
      "line-width": 3.0,
      "line-dasharray": [3, 2]
    }
  },
  {
    id: "tactical-db-wadis",
    type: "line",
    source: "tactical-obstacles",
    "source-layer": "tactical_terrain_obstacles",
    filter: ["==", "severity", "DRAINAGE_DEFILE"],
    paint: {
      "line-color": "#0891b2",
      "line-width": 2.6,
      "line-dasharray": [3, 2]
    }
  },

  // ── 6. MAN-MADE BARRIERS (الجدران الاستنادية، السواتر الترابية، الحواجز والأسوار) ──
  {
    id: "tactical-retaining-walls",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["==", "barrier", "retaining_wall"],
    paint: {
      "line-color": "#e11d48",
      "line-width": 3.2,
      "line-opacity": 1.0
    }
  },
  {
    id: "tactical-berms-embankments",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["any", ["==", "barrier", "berm"], ["==", "man_made", "embankment"]],
    paint: {
      "line-color": "#f59e0b",
      "line-width": 3.0,
      "line-dasharray": [3, 1]
    }
  },
  {
    id: "tactical-trenches-ditches",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["==", "barrier", "ditch"],
    paint: {
      "line-color": "#881337",
      "line-width": 2.5,
      "line-dasharray": [2, 2]
    }
  },
  {
    id: "tactical-fences-walls",
    type: "line",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["in", "barrier", "wall", "jersey_barrier", "fence", "wire_fence"],
    paint: {
      "line-color": "#991b1b",
      "line-width": 2.0,
      "line-dasharray": [3, 2]
    }
  },

  // ── 7. TACTICAL POINTS (فتحات المغاور والكهوف، الشلالات، والمكاشف الصخرية) ──
  {
    id: "tactical-cave-entrances",
    type: "circle",
    source: "local-osm-points",
    "source-layer": "planet_osm_point",
    filter: ["==", "natural", "cave_entrance"],
    paint: {
      "circle-radius": 6.0,
      "circle-color": "#1e293b",
      "circle-stroke-color": "#f59e0b",
      "circle-stroke-width": 2.5
    }
  },
  {
    id: "tactical-waterfalls",
    type: "circle",
    source: "local-osm-points",
    "source-layer": "planet_osm_point",
    filter: ["==", "waterway", "waterfall"],
    paint: {
      "circle-radius": 5.5,
      "circle-color": "#06b6d4",
      "circle-stroke-color": "#ffffff",
      "circle-stroke-width": 2
    }
  },
  {
    id: "tactical-outcrops",
    type: "circle",
    source: "local-osm-points",
    "source-layer": "planet_osm_point",
    filter: ["==", "geological", "outcrop"],
    paint: {
      "circle-radius": 5.0,
      "circle-color": "#c2410c",
      "circle-stroke-color": "#ffffff",
      "circle-stroke-width": 1.5
    }
  },

  // ── 8. TACTICAL LABELS (تسميات الموانع والمعالم التكتيكية الحاكمة) ──
  {
    id: "tactical-obstacle-text-lines",
    type: "symbol",
    source: "local-osm-lines",
    "source-layer": "planet_osm_line",
    filter: ["any",
      ["==", "natural", "cliff"],
      ["==", "barrier", "retaining_wall"],
      ["==", "waterway", "wadi"],
      ["in", "natural", "ridge", "arete"]
    ],
    minzoom: 12,
    layout: {
      "symbol-placement": "line",
      "text-field": "{name}",
      "text-size": 11,
      "text-font": ["Noto Sans Regular"],
      "text-letter-spacing": 0.05
    },
    paint: {
      "text-color": "#7f1d1d",
      "text-halo-color": "#ffffff",
      "text-halo-width": 2.0
    }
  },
  {
    id: "tactical-obstacle-text-poly",
    type: "symbol",
    source: "local-osm-polygons",
    "source-layer": "planet_osm_polygon",
    filter: ["any",
      ["==", "landuse", "quarry"],
      ["in", "natural", "bare_rock", "rock", "scree", "wetland"]
    ],
    minzoom: 12,
    layout: {
      "text-field": "{name}",
      "text-size": 11,
      "text-font": ["Noto Sans Regular"]
    },
    paint: {
      "text-color": "#78350f",
      "text-halo-color": "#ffffff",
      "text-halo-width": 2.0
    }
  }
];

// Insert the tactical layers before road labels and text symbols for optimal z-ordering
const textIndex = tacticalStyle.layers.findIndex((l) => l.id && (l.id.includes('label') || l.type === 'symbol'));
if (textIndex > -1) {
  tacticalStyle.layers.splice(textIndex, 0, ...tacticalLayers);
} else {
  tacticalStyle.layers.push(...tacticalLayers);
}

fs.writeFileSync(tacticalStylePath, JSON.stringify(tacticalStyle, null, 2), 'utf8');
console.log(`✅ Successfully generated tactical-style.json with ${tacticalLayers.length} tactical layers and Overture/PostGIS sources!`);