use std::{ffi::CString, os::raw::c_char};

fn main() {
    convert_fbx_to_3dtiles("/root/data/绿科-三维视图-{三维}111.fbx", 
    "/root/data/out/lk");
}

#[repr(C)]
pub struct FttContext {
    pub fbx_file: *mut c_char,
    pub out_dir: *mut c_char
}


unsafe extern "C" {
    pub unsafe fn fbx_parse(name_in: *const u8);
    pub unsafe fn load_fbx_mesh_to_db(ctx: *const FttContext);
}

fn convert_fbx_to_3dtiles(fbx_path: &str, out_dir: &str) {


    let ctx = &FttContext{
        fbx_file: CString::new(fbx_path).unwrap().into_raw(),
        out_dir: CString::new(out_dir).unwrap().into_raw()
    };

    unsafe  {
        // fbx_parse(fbx_path.as_ptr() as *const u8);
        // 1. load to disk
        // fbx_path.as_ptr() as *const u8
        load_fbx_mesh_to_db(ctx);


        // free
        let _ = CString::from_raw(ctx.fbx_file);
        let _ = CString::from_raw(ctx.out_dir);
    }

    // unsafe {
    //     let scene = fbx_parse(fbx_path.as_ptr() as *const i8);
    //     // Assume we have a function to extract geometry from FBX scene
    //     let geometries = extract_geometries(scene);
    //     let mut tiles_data = Vec::new();
    //     for geometry in geometries {
    //         // Transform the geometry data to 3D Tiles format data
    //         let tile_data = transform_to_3dtiles(geometry);
    //         tiles_data.push(tile_data);
    //     }
    //     // Write the 3D Tiles data to files or serve it as required
    //     write_3dtiles(tiles_data);
    // }
}