import { readFile } from 'node:fs/promises'
import { fileURLToPath } from 'node:url'

// Real Cesium math/events/data types; only GPU/terrain I/O are replaced at the adapter boundary.
export async function resolve(specifier, context, nextResolve) {
    if (specifier !== 'cesium') return nextResolve(specifier, context)
    const real = await nextResolve(specifier, context)
    const code = `
        export * from ${JSON.stringify(real.url)};
        import { Event } from ${JSON.stringify(real.url)};
        export const Model = { async fromGltfAsync(options) {
            const gltf = await fetch(options.url).then(r=>r.json());
            const model = { options, gltf, readyEvent:new Event(), errorEvent:new Event(), destroyed:false,
                destroy(){this.destroyed=true}, isDestroyed(){return this.destroyed} };
            globalThis.t32Models.push(model);
            return model;
        } };
        export async function sampleTerrainMostDetailed(_, points) {
            return points.map(point=>{point.height=globalThis.t32TerrainFails?undefined:100;return point});
        }
    `
    return { url:'data:text/javascript,'+encodeURIComponent(code), shortCircuit:true }
}