99 lines
4.3 KiB
JavaScript
99 lines
4.3 KiB
JavaScript
const SHA256 = /^[\da-f]{64}$/i;
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const REQUIRED_ALPHA_PARAMETERS = ["alphaTestMode", "alphaMode", "translucent", "alpha", "alphaModifier"];
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function normalizeResource(value) {
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return String(value ?? "").replaceAll("\\", "/").replace(/^\/+/, "").toLowerCase();
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}
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function reportErrors(report, label, expectedResource, expectedSourceSha256) {
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const errors = [];
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if (!report || typeof report !== "object") return [`${label} report is missing`];
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if (normalizeResource(report.sourceModel) !== normalizeResource(expectedResource)) {
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errors.push(`${label} source model does not match the cached resource`);
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}
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if (!SHA256.test(String(report.sourceResourceSha256 ?? ""))
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|| report.sourceResourceSha256.toLowerCase() !== expectedSourceSha256.toLowerCase()) {
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errors.push(`${label} source resource SHA-256 is missing or stale`);
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}
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if (!Array.isArray(report.materials) || report.materials.length === 0) {
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errors.push(`${label} native material rows are missing`);
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return errors;
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}
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for (const material of report.materials) {
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const identity = String(material?.name ?? "");
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if (!/^runewaker_material_\d+$/i.test(identity)) {
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errors.push(`${label} has a material row without a native material index`);
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continue;
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}
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if (!Array.isArray(material.sourceTextureChannels)) {
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errors.push(`${label} ${identity} has no source texture channel inventory`);
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}
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const parameters = new Set((material.alphaBlendParameters ?? [])
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.filter((parameter) => parameter && typeof parameter.name === "string")
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.map((parameter) => parameter.name));
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for (const required of REQUIRED_ALPHA_PARAMETERS) {
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if (!parameters.has(required)) {
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errors.push(`${label} ${identity} lacks native alpha parameter ${required}`);
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}
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}
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const alphaValues = Object.fromEntries((material.alphaBlendParameters ?? [])
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.filter(parameter => parameter && typeof parameter.name === "string")
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.map(parameter => [parameter.name, parameter.value]));
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if (alphaValues.alphaTestMode === 1
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&& (!Number.isInteger(alphaValues.alphaTestValue) || alphaValues.alphaTestValue < 0 || alphaValues.alphaTestValue > 255)) {
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errors.push(`${label} ${identity} lacks a valid native alpha-test cutoff`);
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}
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if (material.sourceTexture) {
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const diffuse = (material.sourceTextureChannels ?? [])
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.filter((channel) => String(channel?.name ?? "").toLowerCase() === "diffuse")
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.map((channel) => normalizeResource(channel.texture));
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if (!diffuse.includes(normalizeResource(material.sourceTexture))) {
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errors.push(`${label} ${identity} diffuse channel does not match its source texture`);
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}
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}
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}
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return errors;
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}
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/** Fail closed when a resource cache predates exact ROS material-alpha provenance. */
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export function validateNativeAlphaResourceCache({
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manifest,
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rawReport,
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preparedReport,
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expectedResource,
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expectedSourceSha256,
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expectedToolchain,
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}) {
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const errors = [];
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if (!manifest || typeof manifest !== "object") {
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errors.push("cache manifest is missing");
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} else {
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if (normalizeResource(manifest.source?.resource) !== normalizeResource(expectedResource)) {
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errors.push("cache manifest source resource does not match");
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}
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if (!SHA256.test(String(expectedSourceSha256 ?? ""))
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|| manifest.source?.sha256?.toLowerCase() !== expectedSourceSha256.toLowerCase()) {
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errors.push("cache manifest source SHA-256 does not match");
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}
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for (const name of ["converterSha256", "exporterSha256", "nativeAlphaPolicySha256"]) {
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const expected = expectedToolchain?.[name];
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const actual = manifest.toolchain?.[name];
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if (!SHA256.test(String(expected ?? "")) || actual?.toLowerCase() !== expected.toLowerCase()) {
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errors.push(`cache toolchain ${name} is missing or stale`);
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}
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}
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}
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errors.push(...reportErrors(rawReport, "raw", expectedResource, expectedSourceSha256));
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errors.push(...reportErrors(preparedReport, "prepared", expectedResource, expectedSourceSha256));
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if (rawReport && preparedReport
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&& JSON.stringify(rawReport.materials) !== JSON.stringify(preparedReport.materials)) {
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errors.push("prepared material rows differ from the raw native exporter report");
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}
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return {
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valid: errors.length === 0,
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errors,
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nativeMaterialCount: Array.isArray(rawReport?.materials) ? rawReport.materials.length : 0,
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};
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}
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