LogFilter.h

#pragma once
#include <vector>
#include <string>
#include "LogEntry.h"

struct FilterOptions {
    std::string level;        // Filter by log level (e.g. "ERROR")
    std::string keyword;      // Filter by keyword in message
    std::string source;       // Filter by source/component
    std::string afterTime;    // Show entries after this timestamp
    std::string beforeTime;   // Show entries before this timestamp
};

class LogFilter {
public:
    static std::vector<LogEntry> apply(
        const std::vector<LogEntry>& entries,
        const FilterOptions& opts
    );

    static std::vector<LogEntry> byLevel(
        const std::vector<LogEntry>& entries,
        LogLevel level
    );

    static std::vector<LogEntry> byKeyword(
        const std::vector<LogEntry>& entries,
        const std::string& keyword
    );

    static std::vector<LogEntry> bySource(
        const std::vector<LogEntry>& entries,
        const std::string& source
    );
};