using System;
using System.Linq;
using System.Threading.Tasks;
using Newtonsoft.Json.Linq;
using Xunit;
using WebAssembly.Net.Debugging;

namespace DebuggerTests
{

	public class EvaluateOnCallFrameTests : DebuggerTestBase {

		[Fact]
		public async Task EvaluateThisProperties ()
			=> await CheckInspectLocalsAtBreakpointSite (
				"dotnet://debugger-test.dll/debugger-evaluate-test.cs", 20, 16,
				"run",
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.EvaluateTestsClass:EvaluateLocals'); })",
				wait_for_event_fn: async (pause_location) => {
					var locals = await GetProperties (pause_location ["callFrames"][0] ["callFrameId"].Value<string> ());
					var evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "a");
					CheckContentValue (evaluate, "1");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "b");
					CheckContentValue (evaluate, "2");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "c");
					CheckContentValue (evaluate, "3");

					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "dt");
					await CheckDateTimeValue (evaluate, new DateTime (2000, 5, 4, 3, 2, 1));
				});

		[Theory]
		[InlineData (58, 3, "EvaluateTestsStructInstanceMethod")]
		[InlineData (74, 3, "GenericInstanceMethodOnStruct<int>")]
		[InlineData (97, 3, "EvaluateTestsGenericStructInstanceMethod")]
		public async Task EvaluateThisPropertiesOnStruct (int line, int col, string method_name)
			=> await CheckInspectLocalsAtBreakpointSite (
				"dotnet://debugger-test.dll/debugger-evaluate-test.cs", line, col,
				method_name,
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.EvaluateTestsClass:EvaluateLocals'); })",
				wait_for_event_fn: async (pause_location) => {
					var evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "a");
					CheckContentValue (evaluate, "1");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "b");
					CheckContentValue (evaluate, "2");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "c");
					CheckContentValue (evaluate, "3");

					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "dateTime");
					await CheckDateTimeValue (evaluate, new DateTime (2020, 1, 2, 3, 4, 5));
				});

		[Fact]
		public async Task EvaluateParameters ()
			=> await CheckInspectLocalsAtBreakpointSite (
				"dotnet://debugger-test.dll/debugger-evaluate-test.cs", 20, 16,
				"run",
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.EvaluateTestsClass:EvaluateLocals'); })",
				wait_for_event_fn: async (pause_location) => {
					var locals = await GetProperties (pause_location ["callFrames"][0] ["callFrameId"].Value<string> ());
					var evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "g");
					CheckContentValue (evaluate, "100");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "h");
					CheckContentValue (evaluate, "200");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "valString");
					CheckContentValue (evaluate, "test");
				});

		[Fact]
		public async Task EvaluateLocals ()
			=> await CheckInspectLocalsAtBreakpointSite (
				"dotnet://debugger-test.dll/debugger-evaluate-test.cs", 20, 16,
				"run",
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.EvaluateTestsClass:EvaluateLocals'); })",
				wait_for_event_fn: async (pause_location) => {
					var locals = await GetProperties (pause_location ["callFrames"][0] ["callFrameId"].Value<string> ());
					var evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "d");
					CheckContentValue (evaluate, "101");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "e");
					CheckContentValue (evaluate, "102");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "f");
					CheckContentValue (evaluate, "103");

					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "local_dt");
					await CheckDateTimeValue (evaluate, new DateTime (2010, 9, 8, 7, 6, 5));
				});

		[Fact]
		public async Task EvaluateLocalsAsync ()
		{
			var bp_loc = "dotnet://debugger-test.dll/debugger-array-test.cs";
			int line = 227; int col = 3;
			var function_name = "MoveNext";
			await CheckInspectLocalsAtBreakpointSite (
				bp_loc, line, col,
				function_name,
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.ArrayTestsClass:EntryPointForStructMethod', true); })",
				wait_for_event_fn: async (pause_location) => {
					var locals = await GetProperties (pause_location ["callFrames"][0] ["callFrameId"].Value<string> ());

					// sc_arg
					{
						var sc_arg = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "sc_arg");
						await CheckValue (sc_arg, TObject ("DebuggerTests.SimpleClass"), "sc_arg#1");

						var sc_arg_props = await GetProperties (sc_arg ["objectId"]?.Value<string> ());
						await CheckProps (sc_arg_props, new {
							X                     = TNumber (10),
							Y                     = TNumber (45),
							Id                    = TString ("sc#Id"),
							Color                 = TEnum   ("DebuggerTests.RGB", "Blue"),
							PointWithCustomGetter = TGetter ("PointWithCustomGetter")
						}, "sc_arg_props#1");
					}

					// local_gs
					{
						var local_gs = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "local_gs");
						await CheckValue (local_gs, TValueType ("DebuggerTests.SimpleGenericStruct<int>"), "local_gs#1");

						var local_gs_props = await GetProperties (local_gs ["objectId"]?.Value<string> ());
						await CheckProps (local_gs_props, new {
							Id    = TObject ("string", is_null: true),
							Color = TEnum   ("DebuggerTests.RGB", "Red"),
							Value = TNumber (0)
						}, "local_gs_props#1");
					}

					// step, check local_gs
					pause_location = await StepAndCheck (StepKind.Over, bp_loc, line + 1, col, function_name);
					{
						var local_gs = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "local_gs");
						await CheckValue (local_gs, TValueType ("DebuggerTests.SimpleGenericStruct<int>"), "local_gs#2");

						var local_gs_props = await GetProperties (local_gs ["objectId"]?.Value<string> ());
						await CheckProps (local_gs_props, new {
							Id    = TString ("local_gs#Id"),
							Color = TEnum   ("DebuggerTests.RGB", "Green"),
							Value = TNumber (4)
						}, "local_gs_props#2");
					}

					// step check sc_arg.Id
					pause_location = await StepAndCheck (StepKind.Over, bp_loc, line + 2, col, function_name);
					{
						var sc_arg = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "sc_arg");
						await CheckValue (sc_arg, TObject ("DebuggerTests.SimpleClass"), "sc_arg#2");

						var sc_arg_props = await GetProperties (sc_arg ["objectId"]?.Value<string> ());
						await CheckProps (sc_arg_props, new {
							X                     = TNumber (10),
							Y                     = TNumber (45),
							Id                    = TString ("sc_arg#Id"), // <------- This changed
							Color                 = TEnum   ("DebuggerTests.RGB", "Blue"),
							PointWithCustomGetter = TGetter ("PointWithCustomGetter")
						}, "sc_arg_props#2");
					}
				});
		}

		[Fact]
		public async Task EvaluateExpressions ()
			=> await CheckInspectLocalsAtBreakpointSite (
				"dotnet://debugger-test.dll/debugger-evaluate-test.cs", 20, 16,
				"run",
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.EvaluateTestsClass:EvaluateLocals'); })",
				wait_for_event_fn: async (pause_location) => {
					var locals = await GetProperties (pause_location ["callFrames"][0] ["callFrameId"].Value<string> ());
					var evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "d + e");
					CheckContentValue (evaluate, "203");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "e + 10");
					CheckContentValue (evaluate, "112");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "a + a");
					CheckContentValue (evaluate, "2");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "this.a + this.b");
					CheckContentValue (evaluate, "3");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "\"test\" + \"test\"");
					CheckContentValue (evaluate, "testtest");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "5 + 5");
					CheckContentValue (evaluate, "10");
				});

		[Fact]
		public async Task EvaluateThisExpressions ()
			=> await CheckInspectLocalsAtBreakpointSite (
				"dotnet://debugger-test.dll/debugger-evaluate-test.cs", 20, 16,
				"run",
				"window.setTimeout(function() { invoke_static_method_async ('[debugger-test] DebuggerTests.EvaluateTestsClass:EvaluateLocals'); })",
				wait_for_event_fn: async (pause_location) => {
					var locals = await GetProperties (pause_location ["callFrames"][0] ["callFrameId"].Value<string> ());
					var evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "this.a");
					CheckContentValue (evaluate, "1");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "this.b");
					CheckContentValue (evaluate, "2");
					evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "this.c");
					CheckContentValue (evaluate, "3");

					// FIXME: not supported yet
					// evaluate = await EvaluateOnCallFrame (pause_location ["callFrames"][0] ["callFrameId"].Value<string> (), "this.dt");
					// await CheckDateTimeValue (evaluate, new DateTime (2000, 5, 4, 3, 2, 1));
				});
	}

}