/**
 * Receipt data structure returned by the OCR pipeline
 */
export interface ReceiptData {
    /** Receipt or invoice number */
    receiptno: string;
    /** Name of the shop/store */
    shopname: string;
    /** Date in ISO format (YYYY-MM-DD) */
    date: string;
    /** Time in 24-hour format (HH:MM) */
    time: string;
    /** Net amount (before tax) */
    netAmount: number;
    /** Gross amount (total including tax) */
    grossAmount: number;
    /** Total number of items purchased */
    totalItems: number;
}
/**
 * Complete receipt scan response including structured data and raw OCR text
 */
export interface ReceiptScanResponse {
    /** Receipt or invoice number */
    receiptno: string;
    /** Name of the shop/store */
    shopname: string;
    /** Date in ISO format (YYYY-MM-DD) */
    date: string;
    /** Time in 24-hour format (HH:MM) */
    time: string;
    /** Net amount (before tax) */
    netAmount: number;
    /** Gross amount (total including tax) */
    grossAmount: number;
    /** Total number of items purchased */
    totalItems: number;
    /** Raw OCR text input from the image */
    rawInput: string;
}
/**
 * OCR configuration options
 */
export interface OCRConfig {
    /** Languages to use for OCR recognition */
    languages: ('chi_sim' | 'chi_tra' | 'eng')[];
    /** Level of image preprocessing (higher = more aggressive) */
    preprocessingLevel: 'low' | 'medium' | 'high';
    /** Minimum confidence threshold for OCR results (0-1) */
    confidenceThreshold: number;
    /** Enable debug logging */
    debug?: boolean;
}
/**
 * OCR result with confidence scores
 */
export interface OCRResult {
    /** Extracted text */
    text: string;
    /** Confidence score (0-1) */
    confidence: number;
    /** Detected language */
    language: string;
    /** Processing time in milliseconds */
    processingTime: number;
}
/**
 * Extracted field with confidence
 */
export interface ExtractedField<T = string> {
    /** The extracted value */
    value: T;
    /** Confidence score (0-1) */
    confidence: number;
    /** Source text that was parsed */
    source?: string;
}
/**
 * Partial receipt data with confidence scores
 */
export interface PartialReceiptData {
    receiptno?: ExtractedField<string>;
    shopname?: ExtractedField<string>;
    date?: ExtractedField<string>;
    time?: ExtractedField<string>;
    netAmount?: ExtractedField<number>;
    grossAmount?: ExtractedField<number>;
    totalItems?: ExtractedField<number>;
}
/**
 * Image preprocessing options
 */
export interface PreprocessingOptions {
    /** Target DPI for OCR (default: 300) */
    targetDPI?: number;
    /** Apply denoising */
    denoise?: boolean;
    /** Apply sharpening */
    sharpen?: boolean;
    /** Apply contrast enhancement */
    enhanceContrast?: boolean;
    /** Apply perspective correction */
    correctPerspective?: boolean;
    /** Convert to grayscale */
    grayscale?: boolean;
}
/**
 * Pattern matching result
 */
export interface PatternMatch {
    /** Matched text */
    match: string;
    /** Pattern that matched */
    pattern: RegExp;
    /** Confidence score */
    confidence: number;
    /** Position in text */
    index: number;
}
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