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import { listen } from "@tauri-apps/api/event";
export interface LogEntry {
id: number;
timestamp: string;
level: "info" | "warn" | "error" | "debug" | "fatal";
source: string;
message: string;
}
// Parse Minecraft/Java log format: [HH:MM:SS] [Thread/LEVEL]: message
// or: [HH:MM:SS] [Thread/LEVEL] [Source]: message
const GAME_LOG_REGEX = /^\[[\d:]+\]\s*\[([^\]]+)\/(\w+)\](?:\s*\[([^\]]+)\])?:\s*(.*)$/;
function parseGameLogLevel(levelStr: string): LogEntry["level"] {
const upper = levelStr.toUpperCase();
if (upper === "INFO") return "info";
if (upper === "WARN" || upper === "WARNING") return "warn";
if (upper === "ERROR" || upper === "SEVERE") return "error";
if (
upper === "DEBUG" ||
upper === "TRACE" ||
upper === "FINE" ||
upper === "FINER" ||
upper === "FINEST"
)
return "debug";
if (upper === "FATAL") return "fatal";
return "info";
}
export class LogsState {
logs = $state<LogEntry[]>([]);
private nextId = 0;
private maxLogs = 5000;
// Track all unique sources for filtering
sources = $state<Set<string>>(new Set(["Launcher"]));
constructor() {
this.addLog("info", "Launcher", "Logs initialized");
}
addLog(level: LogEntry["level"], source: string, message: string) {
const now = new Date();
const timestamp =
now.toLocaleTimeString() + "." + now.getMilliseconds().toString().padStart(3, "0");
this.logs.push({
id: this.nextId++,
timestamp,
level,
source,
message,
});
// Track source
if (!this.sources.has(source)) {
this.sources = new Set([...this.sources, source]);
}
if (this.logs.length > this.maxLogs) {
this.logs.shift();
}
}
// Parse game output and extract level/source
addGameLog(rawLine: string, isStderr: boolean) {
const match = rawLine.match(GAME_LOG_REGEX);
if (match) {
const [, thread, levelStr, extraSource, message] = match;
const level = parseGameLogLevel(levelStr);
// Use extraSource if available, otherwise use thread name as source hint
const source = extraSource || `Game/${thread.split("-")[0]}`;
this.addLog(level, source, message);
} else {
// Fallback: couldn't parse, use stderr as error indicator
const level = isStderr ? "error" : "info";
this.addLog(level, "Game", rawLine);
}
}
clear() {
this.logs = [];
this.sources = new Set(["Launcher"]);
this.addLog("info", "Launcher", "Logs cleared");
}
// Export with filter support
exportLogs(filteredLogs: LogEntry[]): string {
return filteredLogs
.map((l) => `[${l.timestamp}] [${l.source}/${l.level.toUpperCase()}] ${l.message}`)
.join("\n");
}
private initialized = false;
async init() {
if (this.initialized) return;
this.initialized = true;
// General Launcher Logs
await listen<string>("launcher-log", (e) => {
this.addLog("info", "Launcher", e.payload);
});
// Game Stdout - parse log level
await listen<string>("game-stdout", (e) => {
this.addGameLog(e.payload, false);
});
// Game Stderr - parse log level, default to error
await listen<string>("game-stderr", (e) => {
this.addGameLog(e.payload, true);
});
// Download Events (Summarized)
await listen("download-start", (e) => {
this.addLog("info", "Downloader", `Starting batch download of ${e.payload} files...`);
});
await listen("download-complete", () => {
this.addLog("info", "Downloader", "All downloads completed.");
});
// Listen to file download progress to log finished files
await listen<any>("download-progress", (e) => {
const p = e.payload;
if (p.status === "Finished") {
if (p.file.endsWith(".jar")) {
this.addLog("info", "Downloader", `Downloaded ${p.file}`);
}
}
});
// Java Download
await listen<any>("java-download-progress", (e) => {
const p = e.payload;
if (p.status === "Downloading" && p.percentage === 0) {
this.addLog("info", "JavaInstaller", `Downloading Java: ${p.file_name}`);
} else if (p.status === "Completed") {
this.addLog("info", "JavaInstaller", `Java installed: ${p.file_name}`);
} else if (p.status === "Error") {
this.addLog("error", "JavaInstaller", `Java download error`);
}
});
}
}
export const logsState = new LogsState();
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