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import { ref, onMounted } from 'vue';
const REPO = 'm1sk9/LunaticChat';
const PROTOCOL_FILE_PATH =
'engine/src/main/kotlin/dev/m1sk9/lunaticChat/engine/protocol/ProtocolVersion.kt';
interface GitHubRelease {
tag_name: string;
published_at: string;
html_url: string;
}
export interface ProtocolVersion {
major: number;
minor: number;
patch: number;
minSupportedMinor: number;
}
export interface PlatformReleaseEntry {
platform: 'paper' | 'velocity';
version: string;
tag: string;
publishedAt: string;
releaseUrl: string;
protocol: ProtocolVersion | null;
}
export interface CompatibilityData {
paper: PlatformReleaseEntry[];
velocity: PlatformReleaseEntry[];
}
function parseProtocolVersion(source: string): ProtocolVersion | null {
const match = (key: string): number | null => {
const re = new RegExp(`const\\s+val\\s+${key}\\s*=\\s*(\\d+)`);
const m = source.match(re);
return m ? Number.parseInt(m[1], 10) : null;
};
const major = match('MAJOR');
const minor = match('MINOR');
const patch = match('PATCH');
const minSupportedMinor = match('MIN_SUPPORTED_MINOR');
if (
major === null ||
minor === null ||
patch === null ||
minSupportedMinor === null
) {
return null;
}
return { major, minor, patch, minSupportedMinor };
}
async function fetchProtocolAtTag(tag: string): Promise<ProtocolVersion | null> {
const url = `https://raw.githubusercontent.com/${REPO}/${encodeURIComponent(tag)}/${PROTOCOL_FILE_PATH}`;
try {
const res = await fetch(url);
if (!res.ok) return null;
const text = await res.text();
return parseProtocolVersion(text);
} catch {
return null;
}
}
function buildEntry(
release: GitHubRelease,
platform: 'paper' | 'velocity',
): PlatformReleaseEntry {
const version = release.tag_name.replace(/^(paper\/|velocity\/)?v/, '');
return {
platform,
version,
tag: release.tag_name,
publishedAt: release.published_at,
releaseUrl: release.html_url,
protocol: null,
};
}
export function useCompatibilityData() {
const data = ref<CompatibilityData>({ paper: [], velocity: [] });
const loading = ref(true);
const error = ref(false);
onMounted(async () => {
try {
const res = await fetch(
`https://api.github.com/repos/${REPO}/releases?per_page=100`,
);
if (!res.ok) {
error.value = true;
return;
}
const releases: GitHubRelease[] = await res.json();
const isUnified = (tag: string) => /^v\d/.test(tag);
const isPaperTag = (tag: string) =>
tag.startsWith('paper/v') || isUnified(tag);
const isVelocityTag = (tag: string) =>
tag.startsWith('velocity/v') || isUnified(tag);
const paper = releases
.filter((r) => isPaperTag(r.tag_name))
.map((r) => buildEntry(r, 'paper'));
const velocity = releases
.filter((r) => isVelocityTag(r.tag_name))
.map((r) => buildEntry(r, 'velocity'));
const all = [...paper, ...velocity];
const protocols = await Promise.all(
all.map((entry) => fetchProtocolAtTag(entry.tag)),
);
all.forEach((entry, i) => {
entry.protocol = protocols[i];
});
data.value = {
paper: paper.filter((e) => e.protocol !== null),
velocity: velocity.filter((e) => e.protocol !== null),
};
} catch {
error.value = true;
} finally {
loading.value = false;
}
});
return { data, loading, error };
}
export type CompatibilityResult = 'compatible' | 'major-mismatch' | 'paper-too-new' | 'paper-too-old';
// Mirrors the gatekeeping done by Velocity in
// platform-velocity/.../PluginMessageHandler.kt — Paper does not validate.
export function checkCompatibility(
paper: ProtocolVersion,
velocity: ProtocolVersion,
): CompatibilityResult {
if (paper.major !== velocity.major) return 'major-mismatch';
if (paper.minor > velocity.minor) return 'paper-too-new';
if (paper.minor < velocity.minSupportedMinor) return 'paper-too-old';
return 'compatible';
}
export function isCompatible(
paper: ProtocolVersion,
velocity: ProtocolVersion,
): boolean {
return checkCompatibility(paper, velocity) === 'compatible';
}
export function formatProtocol(p: ProtocolVersion): string {
return `${p.major}.${p.minor}.${p.patch}`;
}
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