"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.deleteUserFolder = exports.drive = void 0;
exports.default = deleteHandler;
const drive_1 = require("../services/drive");
Object.defineProperty(exports, "drive", { enumerable: true, get: function () { return drive_1.drive; } });
Object.defineProperty(exports, "deleteUserFolder", { enumerable: true, get: function () { return drive_1.deleteUserFolder; } });
/**
 * Delete the account belonging to the supplied token / identifier.
 * Body / query params:
 *   - token  (optional) — the user's auth token
 *   - pass   (required) — current password, used as a safety re-confirm
 *   - user / username / email / id (optional) — fallback identifier
 *
 * FAST PATH: if a username is supplied, we look up that ONE folder in Drive
 * and read only its database.json (≈2 Drive calls). The slow fallback that
 * scans every user is only used when we have no username at all.
 */
async function deleteHandler(req, res) {
    try {
        const params = { ...req.query, ...req.body };
        const token = params.token;
        const pass = params.pass;
        const username = (params.username ?? params.user);
        const email = params.email;
        const idParam = params.id;
        const identifier = username ?? email ?? idParam;
        console.log(`[delete] hit — method=${req.method} hasToken=${!!token} tokenLen=${token?.length ?? 0} hasPass=${!!pass} username=${username ?? "(none)"} email=${email ?? "(none)"}`);
        if (!pass) {
            console.log("[delete] reject: no pass");
            return res.status(400).json({ success: false, message: "Password is required to confirm deletion" });
        }
        if (!token && !identifier) {
            console.log("[delete] reject: no token and no identifier");
            return res.status(400).json({ success: false, message: "Token or username/email is required" });
        }
        let found;
        let folderId = null;
        // Normalize the username candidates we'll try (with and without @ prefix,
        // lowercased) so a small mismatch doesn't break delete.
        const usernameCandidates = new Set();
        if (username) {
            const u = String(username).trim();
            usernameCandidates.add(u);
            usernameCandidates.add(u.toLowerCase());
            const noAt = u.replace(/^@+/, "");
            usernameCandidates.add(noAt);
            usernameCandidates.add(noAt.toLowerCase());
            usernameCandidates.add(`@${noAt}`);
            usernameCandidates.add(`@${noAt.toLowerCase()}`);
        }
        // FAST PATH — try every username candidate against the cache directly.
        for (const cand of usernameCandidates) {
            const t0 = Date.now();
            const fid = await (0, drive_1.getUserFolder)(cand);
            console.log(`[delete] fast-path lookup "${cand}" → ${fid ?? "NOT FOUND"} (${Date.now() - t0}ms)`);
            if (fid) {
                folderId = fid;
                const db = await (0, drive_1.readUserDb)(fid);
                if (db) {
                    found = db;
                    break;
                }
            }
        }
        // SLOW PATH — scan all users and match by ANY identifier we have.
        if (!found) {
            console.log("[delete] slow-path: scanning all users…");
            const t0 = Date.now();
            const users = await (0, drive_1.getAllUsers)();
            console.log(`[delete] loaded ${users.length} users (${Date.now() - t0}ms)`);
            const emailLower = (email ?? "").toString().toLowerCase().trim();
            const idLower = (identifier ?? "").toString().toLowerCase().trim();
            const idNoAt = idLower.replace(/^@+/, "");
            found = users.find(u => {
                const uname = (u.username || "").toLowerCase();
                const unameNoAt = uname.replace(/^@+/, "");
                const uemail = (u.email || "").toLowerCase();
                if (token && u.token === token)
                    return true;
                if (emailLower && uemail === emailLower)
                    return true;
                if (idParam && String(u.id) === String(idParam))
                    return true;
                if (identifier) {
                    if (uname === idLower || unameNoAt === idNoAt)
                        return true;
                    if (uemail === idLower)
                        return true;
                }
                for (const cand of usernameCandidates) {
                    if (uname === cand.toLowerCase())
                        return true;
                }
                return false;
            });
            if (found) {
                console.log(`[delete] slow-path matched user=${found.username} email=${found.email}`);
                folderId = await (0, drive_1.getUserFolder)(found.username);
                console.log(`[delete] folder lookup for ${found.username} → ${folderId ?? "NOT FOUND"}`);
            }
            else {
                // Helpful diagnostic — show first chars of a few cached usernames so
                // we can tell whether the input simply doesn't exist.
                const sample = users.slice(0, 5).map(u => u.username).join(", ");
                console.log(`[delete] no match. tried candidates=${[...usernameCandidates].join("|")} email="${emailLower}" id="${idParam ?? ""}". cache sample: ${sample}`);
            }
        }
        if (!found) {
            console.log("[delete] reject: no user matched");
            return res.status(401).json({ success: false, message: "Account not found for that token or identifier" });
        }
        if (token && found.token !== token) {
            console.log(`[delete] note: provided token does not match stored token (using identifier match)`);
        }
        if (found.pass !== pass) {
            console.log("[delete] reject: password mismatch");
            return res.status(403).json({ success: false, message: "Password does not match — deletion cancelled" });
        }
        if (!folderId) {
            console.log("[delete] reject: no drive folder found for user");
            return res.status(404).json({ success: false, message: "User folder not found" });
        }
        const t2 = Date.now();
        await (0, drive_1.deleteUserFolder)(folderId);
        console.log(`[delete] ✅ account removed: ${found.username} (${found.email}) — drive delete ${Date.now() - t2}ms`);
        return res.status(200).json({
            success: true,
            message: "Account deleted",
            username: found.username,
            email: found.email,
        });
    }
    catch (err) {
        console.error("[delete] error:", err?.message, err?.stack);
        return res.status(500).json({ success: false, message: "Failed to delete account", error: err?.message });
    }
}