memorium/lib/logs.ts

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import { createLogger } from "@lib/log.ts";
import { join } from "node:path";
import { DATA_DIR } from "@lib/env.ts";
import { ensureDir } from "fs";
function getLogFileName() {
const d = new Date();
const year = d.getFullYear();
const month = (d.getMonth() + 1).toString().padStart(2, "0"); // Ensure two digits
const day = d.getDate().toString().padStart(2, "0"); // Ensure two digits
return `${year}-${month}-${day}.log`;
}
const LOG_DIR = join(DATA_DIR, "logs");
// Ensure the log directory exists
await ensureDir(LOG_DIR);
const log = createLogger("");
log.addEventListener("log", async (data) => {
const logEntry = JSON.stringify(data.detail);
const logFilePath = join(LOG_DIR, getLogFileName());
// Append the log entry to the file (creating it if it doesn't exist)
await Deno.writeTextFile(
logFilePath,
new Date().toISOString() + " | " + logEntry + "\n",
{ append: true },
);
});
export type Log = {
scope: string;
level: number;
date: Date;
args: unknown[];
};
export async function getLogs() {
const logFilePath = join(LOG_DIR, getLogFileName());
try {
// Read the log file content
const logFileContent = await Deno.readTextFile(logFilePath);
// Split by lines and parse logs
const logs: Log[] = logFileContent
.split("\n")
.filter((line) => line.trim() !== "")
.map((line) => {
const [date, ...rest] = line.split(" | ");
const parsed = JSON.parse(rest.join(" | ")) as Log;
return {
...parsed,
date: new Date(date),
} as Log;
});
console.log(logs);
// Return the logs sorted by date
return logs.sort((a, b) => a.date.getTime() - b.date.getTime());
} catch (error) {
// If file does not exist, return an empty array
return [];
}
}