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use crate::common::international::extract_numbers_international;
use pdf_extract::extract_text;
use std::path::Path;
/// Parse PDF files and extract numbers from text content
pub fn parse_pdf_file(file_path: &Path) -> crate::error::Result<Vec<f64>> {
// Extract text from PDF file path
let text = extract_text(file_path).map_err(|e| {
crate::error::BenfError::ParseError(format!("Failed to extract text from PDF: {e}"))
})?;
// Extract numbers from the text (including international numerals)
let numbers = extract_numbers_international(&text);
if numbers.is_empty() {
return Err(crate::error::BenfError::NoNumbersFound);
}
Ok(numbers)
}
#[cfg(test)]
mod tests {
use super::*;
use std::path::PathBuf;
#[test]
fn test_pdf_parsing_concept() {
// This test demonstrates the concept - actual PDF files would be needed for real testing
let test_path = PathBuf::from("nonexistent.pdf");
// Test should fail gracefully for non-existent file
let result = parse_pdf_file(&test_path);
assert!(result.is_err());
// Check error type - pdf-extract returns ParseError for non-existent files
match result {
Err(crate::error::BenfError::ParseError(_)) => {
// Expected parse error for non-existent file
}
Err(crate::error::BenfError::FileError(_)) => {
// Also acceptable as file error
}
_ => panic!("Expected parse or file error for non-existent PDF file"),
}
}
#[test]
fn test_real_pdf_file() {
// Test with actual PDF file if it exists
let test_path = PathBuf::from("tests/fixtures/sample_report.pdf");
if test_path.exists() {
let result = parse_pdf_file(&test_path);
match result {
Ok(numbers) => {
// Should extract numbers from the test PDF file
assert!(!numbers.is_empty(), "Should extract at least some numbers");
println!(
"Extracted {count} numbers from PDF file",
count = numbers.len()
);
println!("All extracted numbers: {numbers:?}");
// Expected numbers from our financial report:
// Same content as Word document, so similar number extraction expected
// Note: PDF text extraction might have different spacing/formatting
// Check for some key numbers (allowing for PDF formatting differences)
assert!(
numbers.contains(&567.89) || numbers.contains(&567.0),
"Should contain amount 567.89 or 567"
);
assert!(numbers.contains(&2023.0), "Should contain year 2023");
assert!(
numbers.contains(&12.5) || numbers.contains(&12.0),
"Should contain percentage 12.5 or 12"
);
// Should extract reasonable number of values from financial report
assert!(
numbers.len() >= 20,
"Should extract at least 20 numbers, got {count}",
count = numbers.len()
);
println!("✅ PDF parsing test passed! Extracted financial report data.");
}
Err(e) => {
// If the test file is missing or corrupt, that's also a valid test result
println!("PDF parsing failed (expected if test file is missing): {e}");
}
}
} else {
println!("Test PDF file not found at {test_path:?}, skipping real file test");
}
}
}