include <helpers.scad>
include <noctua_nf_a4x20.scad>

radxa_zero_3e_pcb_w = 30;
radxa_zero_3e_pcb_h = 65;
radxa_zero_3e_pcb_thickness = 1.6;

radxa_zero_3e_pcb_screw_offset = 3.5;
radxa_zero_3e_pcb_distance_between_holes_w = 23;
radxa_zero_3e_pcb_distance_between_holes_h = radxa_zero_3e_pcb_h - radxa_zero_3e_pcb_screw_offset * 2;

rpi_protoboard_connectors_h = 12;
rpi_protoboard_z_offset = 15;

radxa_zero_3e_fan_hole_offset = 28;
radxa_zero_3e_mount_plate_screw_holder_height = 4;
radxa_zero_3e_mount_plate_h = 2;

function radxa_zero_3e_pcb_size() = [
    radxa_zero_3e_pcb_w,
    radxa_zero_3e_pcb_h,
    radxa_zero_3e_pcb_thickness];

module radxa_zero_3e()
{
    pcb_w = radxa_zero_3e_pcb_w;
    pcb_h = radxa_zero_3e_pcb_h;
    pcb_t = radxa_zero_3e_pcb_thickness;
    
    //rotate([90, 0, 0])
    //translate([-pcb_w / 2, -pcb_h / 2, veye_imx287_pcb_thickness])
    
    translate([-pcb_w / 2, 0, 0])
    rotate([0, 0, -90])
    translate([0, 0, pcb_t])
    import("rs109_pcba.stl");
    
    // sd card
    sd_card_z_offset = 3;
    sd_card_w = 11;
    
    translate([0, -pcb_h, -3])
    cube([sd_card_w, sd_card_z_offset * 2, 1], center = true);
}

module rpi_zero_protoboard()
{
    s = radxa_zero_3e_pcb_size();
    w = s[0];
    h = s[1];
    t = s[2] + rpi_protoboard_connectors_h;
    r = 2.5;
    //translate([0, -s[1] / 2, 0])
    //cube(s, center = true);
    translate([0, 0, rpi_protoboard_z_offset])
    hull()
    {
        for (x = [-(w / 2 - r), (w / 2 - r)], y = [-(h - r), -r])
        {
            translate([x, y, 0])
            cylinder($fn = diameterToFn(r * 2), h = t, r = r);
        }
    }
}

module radxa_zero_3e_with_protoboard()
{
    radxa_zero_3e();
    rpi_zero_protoboard();
}

module radxa_zero_3e_rj45_male()
{
    // outer z (scanner coords) size of rj45 connector is
    // 8 mm, including bended wires
    z_delta = 8;
    w = 11.6;
    h = 6.6;
    
    // apply outer z (scanner coords) size
    // put inside rj45 female
    translate([0, 10.45, 2.3])
    cube([w, z_delta, h], center = true);
}

module radxa_zero_3e_with_protoboard_and_connectors()
{
    radxa_zero_3e_with_protoboard();
    radxa_zero_3e_rj45_male();
}

module radxa_zero_3e_mount_plate()
{
    // outer screw holder diameter. there is no more space there,
    // so only round 6 mm screw holders will fit under radxa
    oshd = 6;
    // screw holder height
    shh = radxa_zero_3e_mount_plate_screw_holder_height;
    
    dbhw = radxa_zero_3e_pcb_distance_between_holes_w;
    dbhh = radxa_zero_3e_pcb_distance_between_holes_h;
    so = radxa_zero_3e_pcb_screw_offset;
    
    outer_cyl_delta = so - oshd / 2;
    ocd = outer_cyl_delta;
    bph = radxa_zero_3e_mount_plate_h;
    hih = hole_insert_height;
    hid = hole_insert_diameter;
    
    echo("radxa_zero_3e_pcb_distance_between_holes_h: ", radxa_zero_3e_pcb_distance_between_holes_h);
    echo("dbhh: ", dbhh);
        
    difference()
    {
        union()
        {
            // hole holders
            translate([0, 0, -shh / 2])
            for (xo = [-dbhw / 2, dbhw / 2], yo = [-so, -so - dbhh])
            {
                //translate([-dbhw / 2, -so, 0])
                translate([xo, yo, 0])
                cylinder($fn = dToFn(oshd), d = oshd, h = shh, center = true);
            }
            
            // outer hole holders
            *translate([0, 0, -shh / 2])
            for (xo = [-dbhw / 2 - ocd, dbhw / 2 + ocd], yo = [-so + ocd, -so - dbhh - ocd])
            {
                translate([xo, yo, 0])
                cylinder($fn = dToFn(oshd), d = oshd, h = shh, center = true);
            }
            
            // bottom plate
            hull()
            translate([0, 0, -shh - bph / 2])
            for (xo = [-dbhw / 2, dbhw / 2], yo = [-so, -so - dbhh])
            {
                //translate([-dbhw / 2, -so, 0])
                translate([xo, yo, 0])
                cylinder($fn = dToFn(oshd), d = oshd + 1, h = bph, center = true);
            }
            
            // fan: distance between holes
            fdbh = ld3007ms_distance_between_holes;

            // fan/plate hole holders
            fan_plate_hole_holder_h = hih - bph;
            fphhh = fan_plate_hole_holder_h;
            translate([0, 0, -shh / 2])
            translate([0, -radxa_zero_3e_fan_hole_offset / 2 - (oshd - hid), -fphhh / 2])
            for (xo = [-fdbh / 2, fdbh / 2], yo = [0, 0 - fdbh])
            {
                //translate([-dbhw / 2, -so, 0])
                translate([xo, yo, 0])
                cylinder($fn = dToFn(oshd), d = oshd, h = fphhh, center = true);
            }
        }
    }
}

// with screw holes and fan holes
// TODO: production: create a new one with normal holes and w/o fan holes
module radxa_zero_3e_mount_plate_holes()
{   
    // fan hole diameter, put under CPU
    fan_hole_d = ld3007ms_w - 2;
    fhd = fan_hole_d;
    fan_hole_h = 10;
    fhh = fan_hole_h;
    
    // screw holder height
    shh = radxa_zero_3e_mount_plate_screw_holder_height;
    
    // TODO: deduplicate, move to a global var
    bottom_plate_h = 2;
    bph = bottom_plate_h;
    
    dbhw = radxa_zero_3e_pcb_distance_between_holes_w;
    dbhh = radxa_zero_3e_pcb_distance_between_holes_h;
    so = radxa_zero_3e_pcb_screw_offset;
    hid = hole_insert_diameter;
    
    // fan holes
    translate([0, -radxa_zero_3e_fan_hole_offset, 0])
    hull()
    {
        // top
        translate([0, 0, -shh + $tiny_padding])
        cylinder($fn = dToFn(fhd), d = fhd - 2, h = 0.001, center = true);
        
        // bottom
        translate([0, 0, -shh - bph + $tiny_padding])
        //cylinder($fn = dToFn(fhd), d = fhd, h = fhh, center = true);
        cylinder($fn = dToFn(fhd), d = fhd, h = 0.001, center = true);
        
        // prolongate to cut scanner main frame
        translate([0, 0, -20])
        //cylinder($fn = dToFn(fhd), d = fhd, h = fhh, center = true);
        cylinder($fn = dToFn(fhd), d = fhd, h = 0.001, center = true);
    }
    
    // fan screw holders holes
    translate([0, 0, -bph - shh - $tiny_padding])
    radxa_zero_3e_mount_plate_outer_holes();
    
    // radxa hot inserts holes
    translate([0, 0, -shh / 2])
    for (xo = [-dbhw / 2, dbhw / 2], yo = [-so, -so - dbhh])
    {
        //translate([-dbhw / 2, -so, 0])
        translate([xo, yo, $tiny_padding])
        cylinder($fn = dToFn(hid), d = hid, h = shh, center = true);
    }
}

module radxa_zero_3e_mount_plate_with_holes()
{
    shh = radxa_zero_3e_mount_plate_screw_holder_height;
    bph = radxa_zero_3e_mount_plate_h;
    
    //color("green", 0.1)
    difference()
    {
        radxa_zero_3e_mount_plate();
        radxa_zero_3e_mount_plate_holes();
    }
    
    translate([0, -radxa_zero_3e_fan_hole_offset, -shh - bph])
    rotate([-90, 0, 0])
    *%ld3007ms();
}

// these holes should be positioned by a module which knows
// radxa position in body, so putting them at z==0 for now
module radxa_zero_3e_mount_plate_outer_holes()
{
    shh = radxa_zero_3e_mount_plate_screw_holder_height;
    bph = radxa_zero_3e_mount_plate_h;
    
    translate([0, -radxa_zero_3e_fan_hole_offset, 0])
    rotate([90, 0, 0])
    ld3007ms_holes();
}

//radxa_zero_3e();
//rpi_zero_protoboard();

//radxa_zero_3e_with_protoboard();
//%radxa_zero_3e_rj45_male();
*%radxa_zero_3e_with_protoboard_and_connectors();

*translate([0, 0, -6 - $tiny_padding])
*radxa_zero_3e_mount_plate_outer_holes();

*radxa_zero_3e_mount_plate();
*radxa_zero_3e_mount_plate_with_holes();
*radxa_zero_3e_mount_plate_outer_holes();
//translate([0, fwo, 0])
//translate([0, 0, 20])
translate([0, 0, -10])
//translate([0, 0, radxa_zero_3e_pcb_h - 5])
//rotate([90, 0, 0])
*%radxa_zero_3e_mount_plate_outer_holes();

// debug, visualize 1 mm
*union()
{
    translate([15 - 0.5, -28, -6])
    cube([1, 1, 1], center = true);

    translate([15 - 0.5, -28, -3])
    cube([1, 1, 1], center = true);
}