import Database from 'better-sqlite3';
import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import { defaultDiscordSettings } from '../../src/lib/discord.js';
import { migrateDiscord } from '../../src/lib/server/discord/schema.js';
import { migrateDiscordPublicationDefaults } from '../../src/lib/server/discord/publication-defaults.js';
import { DiscordStore } from '../../src/lib/server/discord/store.js';

let handle: Database.Database;
let store: DiscordStore;
beforeEach(() => {
    handle = new Database(':memory:');
    migrateDiscord(handle);
    handle.exec(`
        CREATE TABLE servers (name TEXT PRIMARY KEY, destroyed_at TEXT);
        INSERT INTO servers VALUES ('kino', NULL), ('town', NULL), ('retired', '2026-10-18');
    `);
    store = new DiscordStore(handle);
});
afterEach(() => handle.close());

function legacySettings(publishedServers: string[]) {
    const value: Record<string, unknown> = { ...defaultDiscordSettings, publishedServers };
    delete value.excludedServers;
    handle
        .prepare('INSERT INTO discord_configuration(id,value) VALUES(1,?)')
        .run(JSON.stringify(value));
}

describe('Discord publication defaults upgrade', () => {
    it('includes all servers on new installations without creating configuration', () => {
        migrateDiscordPublicationDefaults(handle);
        expect(store.settings()).toEqual(defaultDiscordSettings);
        expect(store.settings().excludedServers).toEqual([]);
        expect(handle.prepare('SELECT * FROM discord_configuration').all()).toEqual([]);
    });

    it('replaces the previously empty default selection without enabling Discord or optional sharing', () => {
        legacySettings([]);
        migrateDiscordPublicationDefaults(handle);
        expect(store.settings()).toEqual(defaultDiscordSettings);
        const value = (
            handle.prepare('SELECT value FROM discord_configuration').get() as { value: string }
        ).value;
        expect(JSON.parse(value)).not.toHaveProperty('publishedServers');
    });

    it('preserves existing nonempty selections as exclusions, and retains later opt-outs on replay', () => {
        legacySettings(['kino']);
        migrateDiscordPublicationDefaults(handle);
        expect(store.settings().excludedServers).toEqual(['town']);
        handle.exec("INSERT INTO servers VALUES ('moon', NULL)");
        expect(store.settings().excludedServers).not.toContain('moon');
        store.saveSettings({ ...store.settings(), excludedServers: ['kino', 'town'] });
        const before = handle.prepare('SELECT * FROM discord_configuration').all();
        migrateDiscordPublicationDefaults(handle);
        expect(handle.prepare('SELECT * FROM discord_configuration').all()).toEqual(before);
    });
});