using Microsoft.Data.Sqlite;
using VoiceCat.Server.Data;

namespace VoiceCat.Tests;

public sealed class AccountStoreTests
{
    [Fact]
    public void UnsupportedSchemaIsRejectedWithoutCreatingAccountTables()
    {
        string path = Path.Combine(Path.GetTempPath(), "voicecat-future-" + Guid.NewGuid().ToString("N") + ".db");
        try
        {
            SQLitePCL.Batteries_V2.Init();
            using var connection = new SqliteConnection(new SqliteConnectionStringBuilder { DataSource = path, Pooling = false }.ToString());
            connection.Open();
            using var command = connection.CreateCommand();
            command.CommandText = "CREATE TABLE server_meta (key TEXT PRIMARY KEY,value TEXT NOT NULL); INSERT INTO server_meta VALUES ('schema_version','99');";
            command.ExecuteNonQuery();
            Assert.Throws<InvalidDataException>(() => new AccountStore(path));
            command.CommandText = "SELECT COUNT(*) FROM sqlite_master WHERE name='accounts'";
            Assert.Equal(0L, command.ExecuteScalar());
            command.CommandText = "SELECT value FROM server_meta WHERE key='schema_version'";
            Assert.Equal("99", command.ExecuteScalar());
        }
        finally { File.Delete(path); File.Delete(path + "-wal"); File.Delete(path + "-shm"); }
    }

    [Fact]
    public async Task AccountsSurviveRestartAndFailedAuthDoesNotChangeLastLogin()
    {
        string directory = Path.Combine(Path.GetTempPath(), "voicecat-db-" + Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(directory);
        string path = Path.Combine(directory, "voicecat.db");
        try
        {
            Account account;
            using (var store = new AccountStore(path)) account = await store.CreateAccountAsync("admin'", "secret", true);
            using (var store = new AccountStore(path))
            {
                Assert.Null(await store.AuthenticateAsync("admin'", "wrong"));
                Assert.Null(await store.AuthenticateAsync("missing", "secret"));
                using var connection = new SqliteConnection(new SqliteConnectionStringBuilder { DataSource = path, Pooling = false }.ToString());
                connection.Open();
                using var command = connection.CreateCommand();
                command.CommandText = "SELECT last_login FROM accounts WHERE id=$id";
                command.Parameters.AddWithValue("$id", account.Id);
                Assert.Equal(0L, command.ExecuteScalar());
                Account authenticated = Assert.IsType<Account>(await store.AuthenticateAsync("admin'", "secret"));
                Assert.Equal(account.Id, authenticated.Id);
                Assert.True(authenticated.IsAdmin);
                Assert.True(authenticated.LastLogin > 0);
            }
        }
        finally { Directory.Delete(directory, true); }
    }

    [Fact]
    public void VersionTwoDatabaseMigratesDredAsDisabled()
    {
        string directory = Path.Combine(Path.GetTempPath(), "voicecat-v2-" + Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(directory);
        string path = Path.Combine(directory, "voicecat.db");
        try
        {
            using (var store = new AccountStore(path)) store.LoadChannels();
            using (var connection = new SqliteConnection(new SqliteConnectionStringBuilder { DataSource = path, Pooling = false }.ToString()))
            {
                connection.Open();
                using var command = connection.CreateCommand();
                command.CommandText = "ALTER TABLE channels DROP COLUMN audio_dred; UPDATE server_meta SET value='2' WHERE key='schema_version';";
                command.ExecuteNonQuery();
            }

            using (var migrated = new AccountStore(path))
                Assert.All(migrated.LoadChannels(), channel => Assert.False(channel.Audio.Dred));

            using var verify = new SqliteConnection(new SqliteConnectionStringBuilder { DataSource = path, Pooling = false }.ToString());
            verify.Open();
            using var query = verify.CreateCommand();
            query.CommandText = "SELECT value FROM server_meta WHERE key='schema_version'";
            Assert.Equal("3", query.ExecuteScalar());
        }
        finally { Directory.Delete(directory, true); }
    }
}