1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210namespace GoodWe.WinForm;

public partial class UserControl1 : UserControl
{
	private Inverter? inverter;
	private System.Windows.Forms.Timer? pollTimer;

	public UserControl1()
	{
		InitializeComponent();

		// SearchInvertersAsync does not work
		// await GoodWeClient.SearchInvertersAsync(30000, CancellationToken.None);

		cmbProtocol.SelectedIndex = 1; // UDP default
		cmbFamily.SelectedIndex = 8; // DT default
	}

	// ── Start ─────────────────────────────────────────────────────────────────

	private async void Start_Click(object sender, EventArgs e)
	{
		groupBox1.Enabled = false;
		button1.Enabled = false;
		button2.Enabled = true;

		try
		{
			bool tcp = cmbProtocol.SelectedIndex == 0;
			string host = textBox1.Text.Trim();
			FamilyEnum family = Enum.Parse<FamilyEnum>(this.cmbFamily.Text);

			inverter = await GoodWeClient.ConnectAsync(host: host, tcp: tcp, family: family);

			if (inverter == null)
				return;

			UpdateDeviceInfo();
			StartPolling();
		}
		catch (Exception ex)
		{
			MessageBox.Show($"Connection failed:\n{ex.Message}", "Error",
				MessageBoxButtons.OK, MessageBoxIcon.Error);
			ResetUi();
		}
	}

	// ── Stop ─────────────────────────────────────────────────────────────────

	private async void Stop_Click(object sender, EventArgs e)
	{
		StopPolling();

		if (inverter is not null)
		{
			await inverter.DisposeAsync();
			inverter = null;
		}

		ResetUi();
	}

	// ── Polling ───────────────────────────────────────────────────────────────

	private void StartPolling()
	{
		pollTimer = new System.Windows.Forms.Timer { Interval = 5000 };
		pollTimer.Tick += async (_, _) => await PollAsync();
		pollTimer.Start();

		_ = PollAsync(); // eerste keer meteen
	}

	private void StopPolling()
	{
		pollTimer?.Stop();
		pollTimer?.Dispose();
		pollTimer = null;
	}

	private async Task PollAsync()
	{
		if (inverter is null) return;
		try
		{
			var data = await inverter.ReadRuntimeDataAsync();
			var dictPowerLimit = await inverter.ReadSettingsDataAsync();
			data.Add("grid_export_limit", dictPowerLimit["grid_export_limit"]);
			data.Add("grid_export_limit_value", dictPowerLimit["grid_export_limit_value"]);

			Invoke(() => UpdateData(data));
		}
		catch (Exception ex)
		{
			Invoke((Delegate)(() => labelStatus.Text = $"Poll error: {ex.Message}"));
		}
	}

	// ── UI-updates ────────────────────────────────────────────────────────────

	private void UpdateDeviceInfo()
	{
		if (inverter is null)
			return;
		var items = this.listView1.Items;

		items[0].SubItems[1].Text = inverter.ModelName ?? "–";
		items[1].SubItems[1].Text = inverter.SerialNumber ?? "–";
		items[2].SubItems[1].Text = $"{inverter.Firmware}";
		items[3].SubItems[1].Text = $"{inverter.ArmVersion}";
		items[4].SubItems[1].Text = $"{inverter.RatedPower} W";
	}

	private static string? ToMyString(object? value)
	{
		return value switch
		{
			null => null,
			double d => $"{d:F2}",
			float f => $"{f:F2}",
			DateTime dt => dt.ToString("yyyy-MM-dd HH:mm:ss"),
			_ => value.ToString() ?? "",
		};
	}

	private static void Add(ListView lv, string name, object? value)
	{
		if (value == null)
			return;
		var item = new ListViewItem(name);
		item.SubItems.Add(ToMyString(value));
		lv.Items.Add(item);
	}

	private void UpdateData(Dictionary<string, object?> data)
	{
		this.labelStatus.Text = $"Updated: {ToMyString(data["timestamp"])}";

		this.listViewData.BeginUpdate();
		this.listViewData.Items.Clear();

		Add(listViewData, "Total Power",
			$"{ToMyString(data["e_total"])} kWh");

		Add(listViewData, "Daily Power",
			$"{ToMyString(data["e_day"])} kWh");

		Add(listViewData, "Grid Code",
			$"{ToMyString(data["safety_country"])}");

		Add(listViewData, "PV1",
			$"{ToMyString(data["ipv1"])} A {ToMyString(data["vpv1"])} V");
		Add(listViewData, "PV2",
			$"{ToMyString(data["ipv2"])} A {ToMyString(data["vpv2"])} V");

		Add(listViewData, "AC Current L1/L2/L3",
			$"{ToMyString(data["igrid1"])}/{ToMyString(data["igrid2"])}/{ToMyString(data["igrid3"])} A");
		Add(listViewData, "AC Voltage L1/L2/L3",
			$"{ToMyString(data["vgrid1"])}/{ToMyString(data["vgrid2"])}/{ToMyString(data["vgrid3"])} V");

		Add(listViewData, "AC Power",
			$"{ToMyString(data["total_inverter_power"])} W");

		Add(listViewData, "AC Frequency",
			$"{ToMyString(data["fgrid1"])} Hz");

		Add(listViewData, "Power Limit",
			$"{ToMyString(data["grid_export_limit"])}");

		Add(listViewData, "Power Limit Value",
			$"{ToMyString(data["grid_export_limit_value"])} %");

		//foreach (var kv in data.OrderBy(k => k.Key))
		//	Add(listViewData, kv.Key, kv.Value);

		this.listViewData.EndUpdate();
	}

	private void ResetUi()
	{
		groupBox1.Enabled = true;
		button1.Enabled = true;
		button2.Enabled = false;
		labelStatus.Text = "Stopped";
		listViewData.Items.Clear();
	}

	// ── Cleanup ───────────────────────────────────────────────────────────────

	protected override async void OnHandleDestroyed(EventArgs e)
	{
		StopPolling();
		if (inverter is not null)
		{
			await inverter.DisposeAsync();
			inverter = null;
		}
		base.OnHandleDestroyed(e);
	}

	private async void PowerLimit_CheckedChanged(object sender, EventArgs e)
	{
		bool powerLimitEnabled = this.checkBox1.Checked;
		if (inverter is not null)
		{
			await inverter.SetGridExportLimitAsync(powerLimitEnabled);
		}
	}
}