using System.Text.Json;

namespace decePubClient.E2E.Support
{
	// Each render and action test is also a cell of the town's matrix, appended to the pasture's out/client.jsonl in the
	// cell format town.sh check writes, so report.html shows decePub next to the servers.
	public static class Results
	{
		static readonly object Gate = new();
		static readonly string FilePath = Path.Combine(Pasture.Root, "out", "client.jsonl");

		public static async Task Cell(string feature, string origin, string reference, Func<Task> test) =>
			await Cell(feature, origin, reference, test, page: null);

		// with a page, a failure also leaves its screenshot and text in the test output's .state/ (SignIn.Evidence)
		public static async Task Cell(string feature, string origin, string reference, Func<Task> test, Microsoft.Playwright.IPage page)
		{
			var ok = false;
			string got = null;
			try
			{
				await test();
				ok = true;
			}
			catch (Exception e)
			{
				got = e.Message.Length > 400 ? e.Message[..400] : e.Message;
				if (page is not null)
					await SignIn.Evidence(page, $"{feature}-{origin}-{reference}".Replace('/', '_').Replace('@', '_'));
				throw;
			}
			finally
			{
				var line = JsonSerializer.Serialize(new
				{
					source = "client", cell = $"{feature}|{origin}|decepub|{(origin == "privapub" ? "local" : "in")}", feature, origin,
					observer = "decepub", direction = origin == "privapub" ? "local" : "in", ok, @ref = reference, got,
					t = DateTime.UtcNow.ToString("yyyy-MM-ddTHH:mm:ssZ")
				});
				lock (Gate)
				{
					Directory.CreateDirectory(Path.GetDirectoryName(FilePath)!);
					File.AppendAllText(FilePath, line + "\n");
				}
			}
		}
	}
}