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
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89
90. 90
91. 91
92. 92
93. 93
94. 94
95. 95
96. 96
97. 97
98. 98
99. 99
100. 100
101. 101
102. 102
103. 103
104. 104
105. 105
106. 106
107. 107
108. 108
109. 109
110. 110
111. 111
112. 112
113. 113
114. 114
115. 115
116. 116
117. 117
118. 118
119. 119
120. 120
121. 121
122. 122
123. 123
124. 124
125. 125
126. 126
127. 127
128. 128

// Copyright 2026 Shota FUJI
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
//
// SPDX-License-Identifier: MPL-2.0

const std = @import("std");
const config = @import("config");

const Options = @import("Options.zig");
const delete = @import("./commands/delete.zig");
const list = @import("./commands/list.zig");
const rename = @import("./commands/rename.zig");
const start = @import("./commands/start.zig");
const status = @import("./commands/status.zig");
const stop = @import("./commands/stop.zig");
const errors = @import("./errors.zig");

const CommandLineError = errors.CommandLineError;

test {
    _ = @import("./events.zig");
    _ = @import("./timer.zig");
}

fn printUsage(io: std.Io, file: std.Io.File) !void {
    var buf: [512]u8 = undefined;
    var writer = file.writer(io, &buf);

    try writer.interface.writeAll(
        \\timetracker - Timetracking CLI
        \\
        \\[USAGE]
        \\# CLI
        \\timetracker [OPTIONS] <COMMAND>
        \\
        \\[COMMANDS]
        \\list    List timers.
        \\status  Show a timer.
        \\start   Start a new timer.
        \\stop    Stop a running timer.
        \\delete  Delete a timer from history.
        \\rename  Rename timer title.
        \\
        \\[OPTIONS]
        \\-h, --help    Print this message to stdout and exits.
        \\
    );

    try writer.flush();
}

fn run(init: *const std.process.Init) !void {
    const options = Options.init(init.io, init.environ_map) catch |err| {
        std.log.err("Cannot open application directory: {t}", .{err});
        return error.CannotOpenDataDirectory;
    };
    defer options.deinit(init.io);

    var args = try init.minimal.args.iterateAllocator(init.gpa);
    defer args.deinit();

    // Skip the program name.
    _ = args.skip();

    while (args.next()) |arg| {
        if (std.mem.eql(u8, "-h", arg) or std.mem.eql(u8, "--help", arg)) {
            printUsage(init.io, std.Io.File.stdout()) catch |err| {
                std.log.err("Failed to print usage to stdout: {t}", .{err});
                return CommandLineError.WriteToStdoutFailed;
            };
            return;
        }

        if (std.mem.eql(u8, "list", arg)) {
            try list.run(&args, init.gpa, init.io, options);
            return;
        }

        if (std.mem.eql(u8, "status", arg)) {
            try status.run(&args, init.gpa, init.io, options);
            return;
        }

        if (std.mem.eql(u8, "start", arg)) {
            try start.run(&args, init.gpa, init.io, options);
            return;
        }

        if (std.mem.eql(u8, "stop", arg)) {
            try stop.run(&args, init.gpa, init.io, options);
            return;
        }

        if (std.mem.eql(u8, "delete", arg)) {
            try delete.run(&args, init.gpa, init.io, options);
            return;
        }

        if (std.mem.eql(u8, "rename", arg)) {
            try rename.run(&args, init.gpa, init.io, options);
            return;
        }

        std.log.err("Unknown option: {s}", .{arg});
        printUsage(init.io, std.Io.File.stderr()) catch return CommandLineError.WriteToStderrFailed;
        return CommandLineError.InvalidUsage;
    }

    std.log.err("COMMAND is required.", .{});
    printUsage(init.io, std.Io.File.stderr()) catch return CommandLineError.WriteToStderrFailed;
    return CommandLineError.InvalidUsage;
}

pub fn main(init: std.process.Init) u8 {
    run(&init) catch |err| return switch (err) {
        CommandLineError.InvalidUsage => 3,
        error.TimerNotFound => 4,
        CommandLineError.WriteToStdoutFailed, CommandLineError.WriteToStderrFailed => 5,
        error.CannotOpenDataDirectory => 6,
        error.OutOfMemory => 9,
        else => 1,
    };

    return 0;
}