File size: 4,116 Bytes
c09f67c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | import { createLoggerWithContext } from "@midday/logger";
import type { z } from "zod/v4";
import { receiptConfig } from "../../config/extraction-config";
import type { GetDocumentRequest } from "../../types";
import { extractWebsite } from "../../utils";
import {
applyReceiptFixes,
validateReceiptConsistency,
} from "../../utils/cross-field-validation";
import type { DocumentFormat } from "../../utils/format-detection";
import { detectReceiptFormat } from "../../utils/format-detection";
import {
calculateReceiptExtractionConfidence,
mergeReceiptResults,
} from "../../utils/merging";
import {
calculateReceiptQualityScore,
getReceiptFieldsNeedingReExtraction,
} from "../../utils/validation";
import { BaseExtractionEngine } from "../base-extraction-engine";
type ReceiptData = z.infer<typeof receiptConfig.schema>;
export class ReceiptProcessor extends BaseExtractionEngine<
typeof receiptConfig.schema
> {
constructor() {
super(receiptConfig, createLoggerWithContext("ReceiptProcessor"));
}
protected getDocumentType(): string {
return "receipt";
}
protected calculateQualityScore(result: ReceiptData): {
score: number;
issues: string[];
missingCriticalFields: string[];
invalidFields: string[];
} {
return calculateReceiptQualityScore(result);
}
protected getFieldsNeedingReExtraction(result: ReceiptData): string[] {
return getReceiptFieldsNeedingReExtraction(result);
}
protected mergeResults(
primary: ReceiptData,
secondary: Partial<ReceiptData>,
): ReceiptData {
return mergeReceiptResults(primary, secondary);
}
protected validateConsistency(result: ReceiptData): {
isValid: boolean;
issues: Array<{
field: string;
issue: string;
severity: "error" | "warning";
}>;
suggestedFixes: Array<{
field: string;
value: any;
reason: string;
}>;
} {
return validateReceiptConsistency(result);
}
protected applyConsistencyFixes(
result: ReceiptData,
fixes: Array<{ field: string; value: any; reason: string }>,
): ReceiptData {
return applyReceiptFixes(result, fixes);
}
protected detectFormat(result: ReceiptData): DocumentFormat | undefined {
return detectReceiptFormat(result);
}
protected calculateConfidence(
result: ReceiptData,
qualityScore: {
score: number;
missingCriticalFields: string[];
},
): number {
return calculateReceiptExtractionConfidence(result, qualityScore);
}
protected mergeResultsWithConfidence(
primary: ReceiptData,
secondary: Partial<ReceiptData>,
primaryConfidence: number,
secondaryConfidence: number,
): ReceiptData {
return mergeReceiptResults(
primary,
secondary,
primaryConfidence,
secondaryConfidence,
);
}
async #getWebsite({
website,
email,
storeName,
}: {
website: string | null;
email: string | null;
storeName: string | null;
}) {
return extractWebsite(website, email, storeName, this.logger);
}
public async getReceipt(params: GetDocumentRequest) {
if (!params.documentUrl) {
throw new Error("Document URL is required");
}
const result = await this.extract(params.documentUrl, {
companyName: params.companyName,
logger: this.logger,
});
const website = await this.#getWebsite({
website: result.data.website,
email: result.data.email,
storeName: result.data.store_name,
});
return {
...result.data,
website,
type: "expense",
document_type: result.data.document_type,
date: result.data.date,
amount: result.data.total_amount,
currency: result.data.currency,
name: result.data.store_name,
tax_amount: result.data.tax_amount,
tax_rate: result.data.tax_rate,
tax_type: result.data.tax_type,
language: result.data.language,
metadata: {
register_number: result.data.register_number ?? null,
cashier_name: result.data.cashier_name ?? null,
email: result.data.email ?? null,
},
};
}
}
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