import { test } from "node:test";
import assert from "node:assert/strict";
import path from "node:path";
import { fileURLToPath } from "node:url";
import dotenv from "dotenv";
import getPool from "../lib/server/db";
import { acceptInviteLink, createInviteLink } from "../lib/server/group-invites";
import { cleanupTestData, uniqueInviteCode } from "./test-helpers";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const envLoaded = dotenv.config({ path: path.resolve(__dirname, "../../../.env") });

const hasDb = Boolean(process.env.DATABASE_URL);

test("invite link auto-accept adds member", async t => {
    if (!hasDb) {
        t.skip("DATABASE_URL not set");
        return;
    }
    if (envLoaded.error) t.diagnostic(String(envLoaded.error));

    const pool = getPool();
    const client = await pool.connect();
    let ownerId: number | null = null;
    let memberId: number | null = null;
    let groupId: number | null = null;
    try {
        const ownerRes = await client.query(
            "insert into users(email, password_hash) values($1,$2) returning id",
            [`invite_owner_${Date.now()}@example.com`, "hash"]
        );
        ownerId = Number(ownerRes.rows[0].id);

        const memberRes = await client.query(
            "insert into users(email, password_hash) values($1,$2) returning id",
            [`invite_member_${Date.now()}@example.com`, "hash"]
        );
        memberId = Number(memberRes.rows[0].id);

        const groupRes = await client.query(
            "insert into groups(name, invite_code, created_by) values($1,$2,$3) returning id",
            ["Invite Group", uniqueInviteCode("I"), ownerId]
        );
        groupId = Number(groupRes.rows[0].id);

        await client.query(
            "insert into group_members(group_id, user_id, role) values($1,$2,'GROUP_OWNER')",
            [groupId, ownerId]
        );

        const link = await createInviteLink({
            userId: ownerId,
            groupId,
            policy: "AUTO_ACCEPT",
            singleUse: false,
            expiresAt: new Date(Date.now() + 3 * 24 * 60 * 60 * 1000),
            requestId: "test-request"
        });

        const result = await acceptInviteLink({ userId: memberId!, token: link.token, requestId: "test-accept" });
        assert.equal(result.status, "JOINED");

        const { rowCount } = await client.query(
            "select 1 from group_members where group_id=$1 and user_id=$2",
            [groupId, memberId]
        );
        assert.equal(rowCount, 1);
    } finally {
        await cleanupTestData(client, { userIds: [ownerId, memberId], groupId });
        client.release();
    }
});

test("invite link rejects expired link", async t => {
    if (!hasDb) {
        t.skip("DATABASE_URL not set");
        return;
    }
    if (envLoaded.error) t.diagnostic(String(envLoaded.error));

    const pool = getPool();
    const client = await pool.connect();
    let ownerId: number | null = null;
    let memberId: number | null = null;
    let groupId: number | null = null;
    try {
        const ownerRes = await client.query(
            "insert into users(email, password_hash) values($1,$2) returning id",
            [`invite_owner_${Date.now()}@example.com`, "hash"]
        );
        ownerId = Number(ownerRes.rows[0].id);

        const memberRes = await client.query(
            "insert into users(email, password_hash) values($1,$2) returning id",
            [`invite_member_${Date.now()}@example.com`, "hash"]
        );
        memberId = Number(memberRes.rows[0].id);

        const groupRes = await client.query(
            "insert into groups(name, invite_code, created_by) values($1,$2,$3) returning id",
            ["Invite Group", uniqueInviteCode("E"), ownerId]
        );
        groupId = Number(groupRes.rows[0].id);

        await client.query(
            "insert into group_members(group_id, user_id, role) values($1,$2,'GROUP_OWNER')",
            [groupId, ownerId]
        );

        const link = await createInviteLink({
            userId: ownerId,
            groupId,
            policy: "AUTO_ACCEPT",
            singleUse: false,
            expiresAt: new Date(Date.now() - 60 * 1000),
            requestId: "test-request"
        });

        await assert.rejects(
            () => acceptInviteLink({ userId: memberId!, token: link.token, requestId: "test-accept" }),
            { message: "INVITE_EXPIRED" }
        );
    } finally {
        await cleanupTestData(client, { userIds: [ownerId, memberId], groupId });
        client.release();
    }
});