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| 1 | +//! Logging infrastructure for bitkit-core |
| 2 | +
|
| 3 | +use std::sync::Arc; |
| 4 | +use once_cell::sync::OnceCell; |
| 5 | + |
| 6 | +/// Global logger instance |
| 7 | +static LOGGER: OnceCell<Arc<Logger>> = OnceCell::new(); |
| 8 | + |
| 9 | +/// Get the global logger instance |
| 10 | +pub(crate) fn get_logger() -> Option<&'static Arc<Logger>> { |
| 11 | + LOGGER.get() |
| 12 | +} |
| 13 | + |
| 14 | +/// Set the global logger instance |
| 15 | +/// |
| 16 | +/// This should be called once during application initialization. |
| 17 | +/// Subsequent calls will be ignored. |
| 18 | +pub fn set_logger(log_writer: Arc<dyn LogWriter>) { |
| 19 | + LOGGER.get_or_init(|| Arc::new(Logger::new_custom_writer(log_writer))); |
| 20 | +} |
| 21 | + |
| 22 | +/// Log level for filtering log messages |
| 23 | +#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, uniffi::Enum)] |
| 24 | +pub enum LogLevel { |
| 25 | + /// Trace-level logs (most verbose) |
| 26 | + Trace, |
| 27 | + /// Debug-level logs |
| 28 | + Debug, |
| 29 | + /// Info-level logs |
| 30 | + Info, |
| 31 | + /// Warning-level logs |
| 32 | + Warn, |
| 33 | + /// Error-level logs (least verbose) |
| 34 | + Error, |
| 35 | +} |
| 36 | + |
| 37 | +impl std::fmt::Display for LogLevel { |
| 38 | + fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { |
| 39 | + match self { |
| 40 | + LogLevel::Trace => write!(f, "TRACE"), |
| 41 | + LogLevel::Debug => write!(f, "DEBUG"), |
| 42 | + LogLevel::Info => write!(f, "INFO"), |
| 43 | + LogLevel::Warn => write!(f, "WARN"), |
| 44 | + LogLevel::Error => write!(f, "ERROR"), |
| 45 | + } |
| 46 | + } |
| 47 | +} |
| 48 | + |
| 49 | +/// A log record containing metadata and the log message |
| 50 | +#[derive(Debug, Clone, uniffi::Record)] |
| 51 | +pub struct LogRecord { |
| 52 | + /// The log level |
| 53 | + pub level: LogLevel, |
| 54 | + /// The formatted log message |
| 55 | + pub message: String, |
| 56 | + /// The module path where the log was generated |
| 57 | + pub module_path: String, |
| 58 | + /// The line number where the log was generated |
| 59 | + pub line: u32, |
| 60 | +} |
| 61 | + |
| 62 | +/// Trait for custom log writers that can be implemented by FFI consumers |
| 63 | +/// |
| 64 | +/// This trait should be implemented by Kotlin/Swift code to receive log messages |
| 65 | +/// from the Rust library. When Rust code logs, it will call the `log` method |
| 66 | +/// on the registered LogWriter implementation. |
| 67 | +#[uniffi::export(with_foreign)] |
| 68 | +pub trait LogWriter: Send + Sync { |
| 69 | + /// Process a log record |
| 70 | + fn log(&self, record: LogRecord); |
| 71 | +} |
| 72 | + |
| 73 | +/// Internal logger implementation |
| 74 | +pub(crate) struct Logger { |
| 75 | + writer: Arc<dyn LogWriter>, |
| 76 | +} |
| 77 | + |
| 78 | +impl Logger { |
| 79 | + /// Create a new logger with a custom writer |
| 80 | + pub fn new_custom_writer(log_writer: Arc<dyn LogWriter>) -> Self { |
| 81 | + Self { writer: log_writer } |
| 82 | + } |
| 83 | + |
| 84 | + /// Log a message |
| 85 | + pub fn log(&self, record: LogRecord) { |
| 86 | + self.writer.log(record); |
| 87 | + } |
| 88 | +} |
| 89 | + |
| 90 | +/// Macro for trace-level logging |
| 91 | +#[macro_export] |
| 92 | +macro_rules! log_trace { |
| 93 | + ($logger:expr, $($arg:tt)*) => { |
| 94 | + if let Some(logger) = $logger.as_ref() { |
| 95 | + logger.log($crate::logger::LogRecord { |
| 96 | + level: $crate::logger::LogLevel::Trace, |
| 97 | + message: format!($($arg)*), |
| 98 | + module_path: module_path!().to_string(), |
| 99 | + line: line!(), |
| 100 | + }); |
| 101 | + } |
| 102 | + }; |
| 103 | +} |
| 104 | + |
| 105 | +/// Macro for debug-level logging |
| 106 | +#[macro_export] |
| 107 | +macro_rules! log_debug { |
| 108 | + ($logger:expr, $($arg:tt)*) => { |
| 109 | + if let Some(logger) = $logger.as_ref() { |
| 110 | + logger.log($crate::logger::LogRecord { |
| 111 | + level: $crate::logger::LogLevel::Debug, |
| 112 | + message: format!($($arg)*), |
| 113 | + module_path: module_path!().to_string(), |
| 114 | + line: line!(), |
| 115 | + }); |
| 116 | + } |
| 117 | + }; |
| 118 | +} |
| 119 | + |
| 120 | +/// Macro for info-level logging |
| 121 | +#[macro_export] |
| 122 | +macro_rules! log_info { |
| 123 | + ($logger:expr, $($arg:tt)*) => { |
| 124 | + if let Some(logger) = $logger.as_ref() { |
| 125 | + logger.log($crate::logger::LogRecord { |
| 126 | + level: $crate::logger::LogLevel::Info, |
| 127 | + message: format!($($arg)*), |
| 128 | + module_path: module_path!().to_string(), |
| 129 | + line: line!(), |
| 130 | + }); |
| 131 | + } |
| 132 | + }; |
| 133 | +} |
| 134 | + |
| 135 | +/// Macro for warning-level logging |
| 136 | +#[macro_export] |
| 137 | +macro_rules! log_warn { |
| 138 | + ($logger:expr, $($arg:tt)*) => { |
| 139 | + if let Some(logger) = $logger.as_ref() { |
| 140 | + logger.log($crate::logger::LogRecord { |
| 141 | + level: $crate::logger::LogLevel::Warn, |
| 142 | + message: format!($($arg)*), |
| 143 | + module_path: module_path!().to_string(), |
| 144 | + line: line!(), |
| 145 | + }); |
| 146 | + } |
| 147 | + }; |
| 148 | +} |
| 149 | + |
| 150 | +/// Macro for error-level logging |
| 151 | +#[macro_export] |
| 152 | +macro_rules! log_error { |
| 153 | + ($logger:expr, $($arg:tt)*) => { |
| 154 | + if let Some(logger) = $logger.as_ref() { |
| 155 | + logger.log($crate::logger::LogRecord { |
| 156 | + level: $crate::logger::LogLevel::Error, |
| 157 | + message: format!($($arg)*), |
| 158 | + module_path: module_path!().to_string(), |
| 159 | + line: line!(), |
| 160 | + }); |
| 161 | + } |
| 162 | + }; |
| 163 | +} |
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