Logs de la partie

traque-back/trajectory.js

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+import fs from "fs";
+import path from "path";
+const UPLOAD_DIR = "trajectories";
+const EXTENSION = "txt";
+
+// Useful functions
+
+function teamIDToPath(teamID) {
+    return path.join(UPLOAD_DIR, teamID + "." + EXTENSION);
+}
+
+function dataToLine(...data) {
+    return data.join(',');
+}
+
+const errorFile = (err) => {
+    if (err) console.error("Error appending to file:", err);
+};
+
+function addLineToFile(teamID, line) {
+    // Insert the line in the file of teamID depending on the date (lines are sorted by date)
+    if (!fs.existsSync(teamIDToPath(teamID))) {
+        fs.writeFile(teamIDToPath(teamID), line + '\n', errorFile);
+    } else {
+        fs.readFile(teamIDToPath(teamID), 'utf8', (err, data) => {
+            if (err) {
+                errorFile(err);
+                return;
+            }
+            let lines = data.trim().split('\n');
+            const newDate = parseInt(line.split(',')[0], 10);
+            let insertIndex = lines.length;
+            for (let i = lines.length - 1; i >= 0; i--) {
+                const date = parseInt(lines[i].split(',')[0], 10);
+                if (date <= newDate) {
+                    insertIndex = i + 1;
+                    break;
+                }
+            }
+            lines.splice(insertIndex, 0, line);
+            fs.writeFile(teamIDToPath(teamID), lines.join('\n') + '\n', errorFile);
+        });
+    }
+}
+
+// Export functions
+
+export async function initTrajectories() {
+    const files = fs.readdirSync(UPLOAD_DIR);
+    for (const file of files) fs.unlinkSync(path.join(UPLOAD_DIR, file));
+}
+
+export function writePosition(date, teamID, lon, lat) {
+    addLineToFile(teamID, dataToLine(date, "position", lon, lat));
+}
+
+export function writeCapture(date, teamID, capturedTeamID) {
+    addLineToFile(teamID, dataToLine(date, "capture", capturedTeamID));
+    addLineToFile(capturedTeamID, dataToLine(date, "captured", teamID));
+}
+
+export function writeSeePosition(date, teamID, seenTeamID) {
+    addLineToFile(teamID, dataToLine(date, "see"));
+    addLineToFile(seenTeamID, dataToLine(date, "seen"));
+}