using Explorer.Application;
using Explorer.Storage.Sqlite;
using Microsoft.Extensions.Logging.Abstractions;

namespace Explorer.Storage.Tests;

public class SqliteDatabaseSessionTests
{
    [Fact]
    public async Task Can_browse_and_edit_a_standalone_database()
    {
        var dir = Path.Combine(Path.GetTempPath(), "ew-sql", Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(dir);
        var path = Path.Combine(dir, "sample.db");
        var indexPath = Path.Combine(dir, "index.db");
        await using var writer = new SqliteIndexStore(indexPath, NullLogger<SqliteIndexStore>.Instance);
        await writer.OpenAsync();
        await writer.CloseAsync();

        await using var session = new SqliteDatabaseSession(indexPath);
        await session.OpenAsync(path, preferWrite: true);
        Assert.True(session.CanWrite);
        await session.ExecuteAsync("CREATE TABLE notes (id INTEGER PRIMARY KEY, body TEXT);");
        await session.InsertRowAsync("notes", new Dictionary<string, object?> { ["body"] = "hello" });
        var page = await session.ReadTableAsync("notes", 0, 50);
        Assert.Contains("body", page.Columns);
        Assert.Single(page.Rows);
        var rowId = Convert.ToInt64(page.Rows[0][0]);
        await session.UpdateCellAsync("notes", rowId, "body", "world");
        var query = await session.ExecuteAsync("SELECT body FROM notes");
        Assert.Equal("world", query.Rows[0][0]?.ToString());
        await session.DeleteRowAsync("notes", rowId);
        Assert.Equal(0, (await session.ReadTableAsync("notes", 0, 10)).TotalRows);
    }

    [Fact]
    public async Task Index_opens_read_only_while_writer_holds_lock()
    {
        var dir = Path.Combine(Path.GetTempPath(), "ew-sql", Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(dir);
        var path = Path.Combine(dir, "index.db");
        await using var writer = new SqliteIndexStore(path, NullLogger<SqliteIndexStore>.Instance);
        await writer.OpenAsync();
        await using var session = new SqliteDatabaseSession(path);
        await session.OpenAsync(path, preferWrite: true);
        Assert.False(session.CanWrite);
        Assert.Contains("Read-only", session.ModeLabel, StringComparison.OrdinalIgnoreCase);
        var tables = await session.ListTablesAsync();
        Assert.Contains("sources", tables);
    }
}