import { Config } from "../config/Config";

export type UnbracketedLogCategory =
  | "Config"
  | "Registry"
  | "SearchEngine"
  | "SearchPipeline"
  | "ImageSearch"
  | "Provider"
  | "KeyManager"
  | "WebpageReader"
  | "InspectImages"
  | "HTTPClient"
  | "HTMLExtractor"
  | "Title"
  | "TimeDependencyDetector"
  | "ImageContextDetector"
  | "VisionContextDetector"
  | "SiteAdapter"
  | "RedditAdapter";

export type LegacyBracketedLogCategory =
  | "[Config]"
  | "[Registry]"
  | "[SearchEngine]"
  | "[SearchPipeline]"
  | "[ImageSearch]"
  | "[Provider]"
  | "[KeyManager]"
  | "[WebpageReader]"
  | "[InspectImages]"
  | "[HTTPClient]"
  | "[HTMLExtractor]"
  | "[Title]"
  | "[TimeDependencyDetector]"
  | "[ImageContextDetector]"
  | "[VisionContextDetector]"
  | "[SiteAdapter]"
  | "[RedditAdapter]";

export type LogCategory = UnbracketedLogCategory | LegacyBracketedLogCategory;

export enum LogLevel {
  DEBUG = 0,
  INFO = 1,
  WARN = 2,
  ERROR = 3,
}

/**
 * Structured, category-based Logger for Browse.
 * Supports configurable log levels and category filtering.
 */
export class Logger {
  private static readonly COLOR_RESET = "\x1b[0m";
  private static readonly LEVEL_COLORS: Record<LogLevel, string> = {
    [LogLevel.DEBUG]: "\x1b[90m", // Gray
    [LogLevel.INFO]: "",           // Default terminal color
    [LogLevel.WARN]: "\x1b[33m",  // Yellow
    [LogLevel.ERROR]: "\x1b[31m", // Red
  };

  private static readonly LEVEL_LABELS: Record<LogLevel, string> = {
    [LogLevel.DEBUG]: "[DEBUG]",
    [LogLevel.INFO]: "[INFO] ",
    [LogLevel.WARN]: "[WARN] ",
    [LogLevel.ERROR]: "[ERROR]",
  };

  public static info(category: LogCategory, message: string, ...extra: unknown[]): void {
    this.log(LogLevel.INFO, category, message, ...extra);
  }

  public static debug(category: LogCategory, message: string, ...extra: unknown[]): void {
    if (Config.isDebugEnabled()) {
      this.log(LogLevel.DEBUG, category, message, ...extra);
    }
  }

  public static warn(category: LogCategory, message: string, ...extra: unknown[]): void {
    this.log(LogLevel.WARN, category, message, ...extra);
  }

  public static error(category: LogCategory, message: string, ...extra: unknown[]): void {
    this.log(LogLevel.ERROR, category, message, ...extra);
  }

  private static log(
    level: LogLevel,
    category: LogCategory,
    message: string,
    ...extra: unknown[]
  ): void {
    const color = Logger.LEVEL_COLORS[level] || "";
    const label = Logger.LEVEL_LABELS[level] || "[INFO] ";
    const coloredLabel = color ? `${color}${label}${Logger.COLOR_RESET}` : label;
    const categoryFormatted = category.startsWith("[") ? category : `[${category}]`;
    const prefix = `${coloredLabel} ${categoryFormatted}`;

    if (extra.length > 0) {
      console.log(prefix, message, ...extra);
    } else {
      console.log(prefix, message);
    }
  }
}

import { Config } from "../config/Config";

export type UnbracketedLogCategory =
  | "Config"
  | "Registry"
  | "SearchEngine"
  | "SearchPipeline"
  | "ImageSearch"
  | "Provider"
  | "KeyManager"
  | "WebpageReader"
  | "InspectImages"
  | "HTTPClient"
  | "HTMLExtractor"
  | "Title"
  | "TimeDependencyDetector"
  | "ImageContextDetector"
  | "VisionContextDetector"
  | "SiteAdapter"
  | "RedditAdapter";

export type LegacyBracketedLogCategory =
  | "[Config]"
  | "[Registry]"
  | "[SearchEngine]"
  | "[SearchPipeline]"
  | "[ImageSearch]"
  | "[Provider]"
  | "[KeyManager]"
  | "[WebpageReader]"
  | "[InspectImages]"
  | "[HTTPClient]"
  | "[HTMLExtractor]"
  | "[Title]"
  | "[TimeDependencyDetector]"
  | "[ImageContextDetector]"
  | "[VisionContextDetector]"
  | "[SiteAdapter]"
  | "[RedditAdapter]";

export type LogCategory = UnbracketedLogCategory | LegacyBracketedLogCategory;

export enum LogLevel {
  DEBUG = 0,
  INFO = 1,
  WARN = 2,
  ERROR = 3,
}

/**
 * Structured, category-based Logger for Browse.
 * Supports configurable log levels and category filtering.
 */
export class Logger {
  private static readonly COLOR_RESET = "\x1b[0m";
  private static readonly LEVEL_COLORS: Record<LogLevel, string> = {
    [LogLevel.DEBUG]: "\x1b[90m", // Gray
    [LogLevel.INFO]: "",           // Default terminal color
    [LogLevel.WARN]: "\x1b[33m",  // Yellow
    [LogLevel.ERROR]: "\x1b[31m", // Red
  };

  private static readonly LEVEL_LABELS: Record<LogLevel, string> = {
    [LogLevel.DEBUG]: "[DEBUG]",
    [LogLevel.INFO]: "[INFO] ",
    [LogLevel.WARN]: "[WARN] ",
    [LogLevel.ERROR]: "[ERROR]",
  };

  public static info(category: LogCategory, message: string, ...extra: unknown[]): void {
    this.log(LogLevel.INFO, category, message, ...extra);
  }

  public static debug(category: LogCategory, message: string, ...extra: unknown[]): void {
    if (Config.isDebugEnabled()) {
      this.log(LogLevel.DEBUG, category, message, ...extra);
    }
  }

  public static warn(category: LogCategory, message: string, ...extra: unknown[]): void {
    this.log(LogLevel.WARN, category, message, ...extra);
  }

  public static error(category: LogCategory, message: string, ...extra: unknown[]): void {
    this.log(LogLevel.ERROR, category, message, ...extra);
  }

  private static log(
    level: LogLevel,
    category: LogCategory,
    message: string,
    ...extra: unknown[]
  ): void {
    const color = Logger.LEVEL_COLORS[level] || "";
    const label = Logger.LEVEL_LABELS[level] || "[INFO] ";
    const coloredLabel = color ? `${color}${label}${Logger.COLOR_RESET}` : label;
    const categoryFormatted = category.startsWith("[") ? category : `[${category}]`;
    const prefix = `${coloredLabel} ${categoryFormatted}`;

    if (extra.length > 0) {
      console.log(prefix, message, ...extra);
    } else {
      console.log(prefix, message);
    }
  }
}