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export type LogType = "error" | "warning" | "success" | "info" | "debug";
export type LogVariant = "red" | "yellow" | "green" | "blue" | "orange";
export interface LogLine {
rawTimestamp: string | null;
timestamp: Date | null;
message: string;
}
interface LogStyle {
type: LogType;
variant: LogVariant;
color: string;
}
const LOG_STYLES: Record<LogType, LogStyle> = {
error: {
type: "error",
variant: "red",
color: "bg-red-500/40",
},
warning: {
type: "warning",
variant: "orange",
color: "bg-orange-500/40",
},
debug: {
type: "debug",
variant: "yellow",
color: "bg-yellow-500/40",
},
success: {
type: "success",
variant: "green",
color: "bg-green-500/40",
},
info: {
type: "info",
variant: "blue",
color: "bg-blue-600/40",
},
} as const;
export function parseLogs(logString: string): LogLine[] {
// Regex to match the log line format
// Example of return :
// 1 2024-12-10T10:00:00.000Z The server is running on port 8080
// Should return :
// { timestamp: new Date("2024-12-10T10:00:00.000Z"),
// message: "The server is running on port 8080" }
const logRegex =
/^(?:(\d+)\s+)?(\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d+)?Z|\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d{3} UTC)?\s*(.*)$/;
return logString
.split("\n")
.map((line) => line.trim())
.filter((line) => line !== "")
.map((line) => {
const match = line.match(logRegex);
if (!match) return null;
const [, , timestamp, message] = match;
if (!message?.trim()) return null;
return {
rawTimestamp: timestamp ?? null,
timestamp: timestamp ? new Date(timestamp.replace(" UTC", "Z")) : null,
message: message.trim(),
};
})
.filter((log) => log !== null);
}
// Detect log type based on message content
export const getLogType = (message: string): LogStyle => {
const lowerMessage = message.toLowerCase();
if (
/(?:^|\s)(?:info|inf|information):?\s/i.test(lowerMessage) ||
/\[(?:info|information)\]/i.test(lowerMessage) ||
/\b(?:status|state|current|progress)\b:?\s/i.test(lowerMessage) ||
/\b(?:processing|executing|performing)\b/i.test(lowerMessage)
) {
return LOG_STYLES.info;
}
if (
/(?:^|\s)(?:error|err):?\s/i.test(lowerMessage) ||
/\b(?:exception|failed|failure)\b/i.test(lowerMessage) ||
/(?:stack\s?trace):\s*$/i.test(lowerMessage) ||
/^\s*at\s+[\w.]+\s*\(?.+:\d+:\d+\)?/.test(lowerMessage) ||
/\b(?:uncaught|unhandled)\s+(?:exception|error)\b/i.test(lowerMessage) ||
/Error:\s.*(?:in|at)\s+.*:\d+(?::\d+)?/.test(lowerMessage) ||
/\b(?:errno|code):\s*(?:\d+|[A-Z_]+)\b/i.test(lowerMessage) ||
/\[(?:error|err|fatal)\]/i.test(lowerMessage) ||
/\b(?:crash|critical|fatal)\b/i.test(lowerMessage) ||
/\b(?:fail(?:ed|ure)?|broken|dead)\b/i.test(lowerMessage)
) {
return LOG_STYLES.error;
}
if (
/(?:^|\s)(?:warning|warn):?\s/i.test(lowerMessage) ||
/\[(?:warn(?:ing)?|attention)\]/i.test(lowerMessage) ||
/(?:deprecated|obsolete)\s+(?:since|in|as\s+of)/i.test(lowerMessage) ||
/\b(?:caution|attention|notice):\s/i.test(lowerMessage) ||
/(?:might|may|could)\s+(?:not|cause|lead\s+to)/i.test(lowerMessage) ||
/(?:!+\s*(?:warning|caution|attention)\s*!+)/i.test(lowerMessage) ||
/\b(?:deprecated|obsolete)\b/i.test(lowerMessage) ||
/\b(?:unstable|experimental)\b/i.test(lowerMessage)
) {
return LOG_STYLES.warning;
}
if (
/(?:successfully|complete[d]?)\s+(?:initialized|started|completed|created|done|deployed)/i.test(
lowerMessage,
) ||
/\[(?:success|ok|done)\]/i.test(lowerMessage) ||
/(?:listening|running)\s+(?:on|at)\s+(?:port\s+)?\d+/i.test(lowerMessage) ||
/(?:connected|established|ready)\s+(?:to|for|on)/i.test(lowerMessage) ||
/\b(?:loaded|mounted|initialized)\s+successfully\b/i.test(lowerMessage) ||
/✓|√|✅|\[ok\]|done!/i.test(lowerMessage) ||
/\b(?:success(?:ful)?|completed|ready)\b/i.test(lowerMessage) ||
/\b(?:started|starting|active)\b/i.test(lowerMessage)
) {
return LOG_STYLES.success;
}
if (
/(?:^|\s)(?:info|inf):?\s/i.test(lowerMessage) ||
/\[(info|log|debug|trace|server|db|api|http|request|response)\]/i.test(
lowerMessage,
) ||
/\b(?:version|config|import|load|get|HTTP|PATCH|POST|debug)\b:?/i.test(
lowerMessage,
)
) {
return LOG_STYLES.debug;
}
return LOG_STYLES.info;
};