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
|
#nullable disable
using System;
using System.Collections.Generic;
using System.Linq;
using StardewModdingAPI.Framework.Logging;
using StardewModdingAPI.Internal.ConsoleWriting;
namespace StardewModdingAPI.Framework
{
/// <summary>Encapsulates monitoring and logic for a given module.</summary>
internal class Monitor : IMonitor
{
/*********
** Fields
*********/
/// <summary>The name of the module which logs messages using this instance.</summary>
private readonly string Source;
/// <summary>Handles writing text to the console.</summary>
private readonly IConsoleWriter ConsoleWriter;
/// <summary>Prefixing a message with this character indicates that the console interceptor should write the string without intercepting it. (The character itself is not written.)</summary>
private readonly char IgnoreChar;
/// <summary>The log file to which to write messages.</summary>
private readonly LogFileManager LogFile;
/// <summary>The maximum length of the <see cref="LogLevel"/> values.</summary>
private static readonly int MaxLevelLength = (from level in Enum.GetValues(typeof(LogLevel)).Cast<LogLevel>() select level.ToString().Length).Max();
/// <summary>A cache of messages that should only be logged once.</summary>
private readonly HashSet<string> LogOnceCache = new();
/// <summary>Get the screen ID that should be logged to distinguish between players in split-screen mode, if any.</summary>
private readonly Func<int?> GetScreenIdForLog;
/*********
** Accessors
*********/
/// <inheritdoc />
public bool IsVerbose { get; }
/// <summary>Whether to show the full log stamps (with time/level/logger) in the console. If false, shows a simplified stamp with only the logger.</summary>
internal bool ShowFullStampInConsole { get; set; }
/// <summary>Whether to show trace messages in the console.</summary>
internal bool ShowTraceInConsole { get; set; }
/// <summary>Whether to write anything to the console. This should be disabled if no console is available.</summary>
internal bool WriteToConsole { get; set; } = true;
/*********
** Public methods
*********/
/// <summary>Construct an instance.</summary>
/// <param name="source">The name of the module which logs messages using this instance.</param>
/// <param name="ignoreChar">A character which indicates the message should not be intercepted if it appears as the first character of a string written to the console. The character itself is not logged in that case.</param>
/// <param name="logFile">The log file to which to write messages.</param>
/// <param name="colorConfig">The colors to use for text written to the SMAPI console.</param>
/// <param name="isVerbose">Whether verbose logging is enabled. This enables more detailed diagnostic messages than are normally needed.</param>
/// <param name="getScreenIdForLog">Get the screen ID that should be logged to distinguish between players in split-screen mode, if any.</param>
public Monitor(string source, char ignoreChar, LogFileManager logFile, ColorSchemeConfig colorConfig, bool isVerbose, Func<int?> getScreenIdForLog)
{
// validate
if (string.IsNullOrWhiteSpace(source))
throw new ArgumentException("The log source cannot be empty.");
// initialize
this.Source = source;
this.LogFile = logFile ?? throw new ArgumentNullException(nameof(logFile), "The log file manager cannot be null.");
this.ConsoleWriter = new ColorfulConsoleWriter(Constants.Platform, colorConfig);
this.IgnoreChar = ignoreChar;
this.IsVerbose = isVerbose;
this.GetScreenIdForLog = getScreenIdForLog;
}
/// <inheritdoc />
public void Log(string message, LogLevel level = LogLevel.Trace)
{
this.LogImpl(this.Source, message, (ConsoleLogLevel)level);
}
/// <inheritdoc />
public void LogOnce(string message, LogLevel level = LogLevel.Trace)
{
if (this.LogOnceCache.Add($"{message}|{level}"))
this.LogImpl(this.Source, message, (ConsoleLogLevel)level);
}
/// <inheritdoc />
public void VerboseLog(string message)
{
if (this.IsVerbose)
this.Log(message);
}
/// <summary>Write a newline to the console and log file.</summary>
internal void Newline()
{
if (this.WriteToConsole)
Console.WriteLine();
this.LogFile.WriteLine("");
}
/// <summary>Log a fatal error message.</summary>
/// <param name="message">The message to log.</param>
internal void LogFatal(string message)
{
this.LogImpl(this.Source, message, ConsoleLogLevel.Critical);
}
/// <summary>Log console input from the user.</summary>
/// <param name="input">The user input to log.</param>
internal void LogUserInput(string input)
{
// user input already appears in the console, so just need to write to file
string prefix = this.GenerateMessagePrefix(this.Source, (ConsoleLogLevel)LogLevel.Info);
this.LogFile.WriteLine($"{prefix} $>{input}");
}
/*********
** Private methods
*********/
/// <summary>Write a message line to the log.</summary>
/// <param name="source">The name of the mod logging the message.</param>
/// <param name="message">The message to log.</param>
/// <param name="level">The log level.</param>
private void LogImpl(string source, string message, ConsoleLogLevel level)
{
// generate message
string prefix = this.GenerateMessagePrefix(source, level);
string fullMessage = $"{prefix} {message}";
string consoleMessage = this.ShowFullStampInConsole ? fullMessage : $"[{source}] {message}";
// write to console
if (this.WriteToConsole && (this.ShowTraceInConsole || level != ConsoleLogLevel.Trace))
this.ConsoleWriter.WriteLine(this.IgnoreChar + consoleMessage, level);
// write to log file
this.LogFile.WriteLine(fullMessage);
}
/// <summary>Generate a message prefix for the current time.</summary>
/// <param name="source">The name of the mod logging the message.</param>
/// <param name="level">The log level.</param>
private string GenerateMessagePrefix(string source, ConsoleLogLevel level)
{
string levelStr = level.ToString().ToUpper().PadRight(Monitor.MaxLevelLength);
int? playerIndex = this.GetScreenIdForLog();
return $"[{DateTime.Now:HH:mm:ss} {levelStr}{(playerIndex != null ? $" screen_{playerIndex}" : "")} {source}]";
}
}
}
|
