$fn = 64;

// --- Parameters ---
cable_diameter = 6.0;      // Diameter of the cables to hold
snap_fit_width = 4.5;      // Width of the slot opening (slightly smaller than cable for snap-fit)
led_diameter = 38.0;       // Diameter for standard LED tea light
led_depth = 18.0;          // Depth of the LED cavity
base_radius = 42.0;        // Overall radius of the base

// --- Main Assembly ---
difference() {
    // Solid Body
    union() {
        // Faceted base (rotated to align flat faces with slots)
        rotate([0, 0, 30])
        cylinder(h=15, r1=base_radius, r2=base_radius-3, $fn=6);
        
        // Crystal formation
        crystal_cluster();
    }
    
    // Subtractions
    cable_slots();
    led_cavity();
    
    // Clean bottom cut to ensure flat printing surface
    translate([0, 0, -50])
    cube([100, 100, 100], center=true);
}

// --- Modules ---

// Generates a single crystal with a hexagonal profile and pointed tip
module crystal(r, h, tip_h) {
    // Main hexagonal prism
    cylinder(h=h, r=r, $fn=6);
    // Tapered point
    translate([0, 0, h])
    cylinder(h=tip_h, r1=r, r2=0, $fn=6);
}

// Generates the clustered formation of crystals
module crystal_cluster() {
    // Central tall crystal
    crystal(22, 80, 35);
    
    // Medium surrounding crystals
    for(i = [0 : 120 : 359]) {
        rotate([0, 0, i])
        translate([18, 0, 0])
        rotate([0, 12, 0])
        crystal(16, 55, 25);
    }
    
    // Small filler crystals
    for(i = [60 : 120 : 359]) {
        rotate([0, 0, i])
        translate([22, 0, 0])
        rotate([0, 22, 0])
        crystal(12, 35, 18);
    }
}

// Generates the horizontal snap-fit channels for organizing cables
module cable_slots() {
    // 6 slots around the perimeter, aligned with the hex base faces
    for(i = [0 : 60 : 359]) {
        rotate([0, 0, i])
        translate([base_radius - 8, 0, 8]) // Position slightly inside the outer face
        rotate([90, 0, 0])
        union() {
            // Main cylindrical cable channel
            cylinder(h=base_radius*2, d=cable_diameter, center=true);
            // Outer rectangular opening for snapping the cable in
            translate([10, 0, 0])
            cube([20, snap_fit_width, base_radius*2], center=true);
        }
    }
}

// Generates the hollow interior for an LED light to shine through
module led_cavity() {
    // Bottom cylindrical opening for the LED tea light
    translate([0, 0, -1])
    cylinder(h=led_depth + 1, d=led_diameter);
    
    // Hollow out the center crystal (tapered to a point for support-free 3D printing)
    translate([0, 0, led_depth - 1])
    cylinder(h=85, r1=led_diameter/2 - 2, r2=0, $fn=6);
    
    // Hollow out the medium side crystals for better light diffusion
    for(i = [0 : 120 : 359]) {
        rotate([0, 0, i])
        translate([18, 0, led_depth - 2])
        rotate([0, 12, 0])
        cylinder(h=60, r1=10, r2=0, $fn=6);
    }
}