1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74

// Copyright (C) 2025 Shota FUJI
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//
// SPDX-License-Identifier: GPL-3.0-only

const c = @cImport({
    @cInclude("time.h");
    @cInclude("sunriset.h");
});

latitude: f64 = c.DEFAULT_LATITUDE,
longitude: f64 = c.DEFAULT_LONGITUDE,
offset_hour: f64 = 0,
twilight_angle: f64 = c.TWILIGHT_ANGLE_DAYLIGHT,
now: c.time_t = 0,
target_time: c.time_t = 0,
now_delta: c_ulong = 0,
target_delta: c_ulong = 0,
function_report: c.OnOff = c.ONOFF_OFF,
function_list: c.OnOff = c.ONOFF_OFF,
function_poll: c.OnOff = c.ONOFF_OFF,
function_wait: c.OnOff = c.ONOFF_OFF,
utc: bool = false,
debug: bool = false,
report_sunrise: c.OnOff = c.ONOFF_OFF,
report_sunset: c.OnOff = c.ONOFF_OFF,
list_days: c_uint = c.DEFAULT_LIST,
utc_bias_hours: f64 = 0,

pub fn init() @This() {
    var opts = @This(){};

    _ = c.time(&opts.now);
    opts.now_delta = c.daysSince2000(&opts.now);

    return opts;
}

pub fn toC(self: *const @This()) c.runStruct {
    return c.runStruct{
        .latitude = self.latitude,
        .longitude = self.longitude,
        .offsetHour = self.offset_hour,
        .twilightAngle = self.twilight_angle,
        .nowTimet = self.now,
        .targetTimet = self.target_time,
        .now2000 = self.now_delta,
        .target2000 = self.target_delta,
        .functionVersion = c.ONOFF_OFF,
        .functionUsage = c.ONOFF_OFF,
        .functionReport = self.function_report,
        .functionList = self.function_list,
        .functionPoll = self.function_poll,
        .functionWait = self.function_wait,
        .utc = if (self.utc) c.ONOFF_ON else c.ONOFF_OFF,
        .debug = if (self.debug) c.ONOFF_ON else c.ONOFF_OFF,
        .reportSunrise = self.report_sunrise,
        .reportSunset = self.report_sunset,
        .listDays = self.list_days,
        .utcBiasHours = self.utc_bias_hours,
    };
}