threatflux-binary-analysis 0.2.0

//! Extract and adapt binary analysis code from file-scanner

use crate::Result;

/// Extract the core binary analysis logic from file-scanner modules
/// This is a temporary utility to help migrate existing code
pub struct CodeExtractor;

impl CodeExtractor {
    /// Extract binary parser functionality
    pub fn extract_binary_parser() -> Result<String> {
        // This would read from ../src/binary_parser.rs and adapt it
        Ok("// Placeholder: Extract binary_parser.rs functionality".to_string())
    }

    /// Extract disassembly functionality  
    pub fn extract_disassembly() -> Result<String> {
        // This would read from ../src/disassembly.rs and adapt it
        Ok("// Placeholder: Extract disassembly.rs functionality".to_string())
    }

    /// Extract control flow analysis
    pub fn extract_control_flow() -> Result<String> {
        // This would read from ../src/control_flow.rs and adapt it
        Ok("// Placeholder: Extract control_flow.rs functionality".to_string())
    }

    /// Extract function analysis
    pub fn extract_function_analysis() -> Result<String> {
        // This would read from ../src/function_analysis.rs and adapt it
        Ok("// Placeholder: Extract function_analysis.rs functionality".to_string())
    }
}

/// Adaptation helpers for converting file-scanner types to library types
pub struct TypeAdapter;

impl TypeAdapter {
    /// Adapt file-scanner binary format to library format
    pub fn adapt_binary_format(/* file_scanner_format: ... */) -> crate::types::BinaryFormat {
        // Placeholder: Implement adaptation
        crate::types::BinaryFormat::Unknown
    }

    /// Adapt file-scanner architecture to library architecture
    pub fn adapt_architecture(/* file_scanner_arch: ... */) -> crate::types::Architecture {
        // Placeholder: Implement adaptation
        crate::types::Architecture::Unknown
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::types::{Architecture, BinaryFormat};

    #[test]
    fn test_code_extractor_extract_binary_parser() {
        let result = CodeExtractor::extract_binary_parser();

        assert!(result.is_ok(), "extract_binary_parser should succeed");
        let content = result.unwrap();
        assert_eq!(
            content,
            "// Placeholder: Extract binary_parser.rs functionality"
        );
        assert!(!content.is_empty(), "Content should not be empty");
    }

    #[test]
    fn test_code_extractor_extract_disassembly() {
        let result = CodeExtractor::extract_disassembly();

        assert!(result.is_ok(), "extract_disassembly should succeed");
        let content = result.unwrap();
        assert_eq!(
            content,
            "// Placeholder: Extract disassembly.rs functionality"
        );
        assert!(!content.is_empty(), "Content should not be empty");
    }

    #[test]
    fn test_code_extractor_extract_control_flow() {
        let result = CodeExtractor::extract_control_flow();

        assert!(result.is_ok(), "extract_control_flow should succeed");
        let content = result.unwrap();
        assert_eq!(
            content,
            "// Placeholder: Extract control_flow.rs functionality"
        );
        assert!(!content.is_empty(), "Content should not be empty");
    }

    #[test]
    fn test_code_extractor_extract_function_analysis() {
        let result = CodeExtractor::extract_function_analysis();

        assert!(result.is_ok(), "extract_function_analysis should succeed");
        let content = result.unwrap();
        assert_eq!(
            content,
            "// Placeholder: Extract function_analysis.rs functionality"
        );
        assert!(!content.is_empty(), "Content should not be empty");
    }

    #[test]
    fn test_code_extractor_all_methods_return_consistent_format() {
        let methods = [
            CodeExtractor::extract_binary_parser,
            CodeExtractor::extract_disassembly,
            CodeExtractor::extract_control_flow,
            CodeExtractor::extract_function_analysis,
        ];

        for method in &methods {
            let result = method();
            assert!(result.is_ok(), "All extraction methods should succeed");

            let content = result.unwrap();
            assert!(
                content.starts_with("// Placeholder:"),
                "All methods should return placeholder comments"
            );
            assert!(
                content.contains("functionality"),
                "All methods should mention functionality"
            );
        }
    }

    #[test]
    fn test_type_adapter_adapt_binary_format() {
        let format = TypeAdapter::adapt_binary_format();

        // Test that it returns the default Unknown format
        assert_eq!(format, BinaryFormat::Unknown);
    }

    #[test]
    fn test_type_adapter_adapt_architecture() {
        let arch = TypeAdapter::adapt_architecture();

        // Test that it returns the default Unknown architecture
        assert_eq!(arch, Architecture::Unknown);
    }

    #[test]
    fn test_type_adapter_methods_are_deterministic() {
        // Test that multiple calls return the same result
        let format1 = TypeAdapter::adapt_binary_format();
        let format2 = TypeAdapter::adapt_binary_format();
        assert_eq!(
            format1, format2,
            "adapt_binary_format should be deterministic"
        );

        let arch1 = TypeAdapter::adapt_architecture();
        let arch2 = TypeAdapter::adapt_architecture();
        assert_eq!(arch1, arch2, "adapt_architecture should be deterministic");
    }

    #[test]
    fn test_type_adapter_return_valid_enum_variants() {
        let format = TypeAdapter::adapt_binary_format();
        // Verify it's one of the valid BinaryFormat variants
        match format {
            BinaryFormat::Elf
            | BinaryFormat::Pe
            | BinaryFormat::MachO
            | BinaryFormat::Java
            | BinaryFormat::Wasm
            | BinaryFormat::Raw
            | BinaryFormat::Unknown => {
                // Valid variant
            }
        }

        let arch = TypeAdapter::adapt_architecture();
        // Verify it's one of the valid Architecture variants
        match arch {
            Architecture::X86
            | Architecture::X86_64
            | Architecture::Arm
            | Architecture::Arm64
            | Architecture::Mips
            | Architecture::Mips64
            | Architecture::PowerPC
            | Architecture::PowerPC64
            | Architecture::RiscV
            | Architecture::RiscV64
            | Architecture::Wasm
            | Architecture::Jvm
            | Architecture::Unknown => {
                // Valid variant
            }
        }
    }

    #[test]
    fn test_code_extractor_struct_instantiation() {
        // Test that we can create the struct (even though methods are static)
        let _extractor = CodeExtractor;

        // Methods are static, so they must be called on the type
        let result = CodeExtractor::extract_binary_parser();
        assert!(result.is_ok());
    }

    #[test]
    fn test_type_adapter_struct_instantiation() {
        // Test that we can create the struct (even though methods are static)
        let _adapter = TypeAdapter;

        // Methods are static, so they must be called on the type
        let format = TypeAdapter::adapt_binary_format();
        assert_eq!(format, BinaryFormat::Unknown);

        let arch = TypeAdapter::adapt_architecture();
        assert_eq!(arch, Architecture::Unknown);
    }

    #[test]
    fn test_result_type_compatibility() {
        // Test that the Result type works correctly with our error handling
        let results = [
            CodeExtractor::extract_binary_parser(),
            CodeExtractor::extract_disassembly(),
            CodeExtractor::extract_control_flow(),
            CodeExtractor::extract_function_analysis(),
        ];

        for result in &results {
            // Test that we can use standard Result methods
            assert!(result.is_ok());
            assert!(!result.is_err());

            // Test that we can unwrap safely since we know they're Ok
            let _content = result.as_ref().unwrap();
        }
    }

    #[test]
    fn test_error_handling_compatibility() {
        // Test that our Result type is compatible with error handling patterns
        let result = CodeExtractor::extract_binary_parser();

        match &result {
            Ok(content) => {
                assert!(!content.is_empty());
            }
            Err(_) => {
                panic!("This test case should never fail");
            }
        }

        // Test with map/and_then patterns
        let mapped = result.map(|s| s.len()).map(|len| len > 0);
        assert!(mapped.is_ok());
        assert!(mapped.unwrap());
    }

    #[test]
    fn test_string_content_properties() {
        let methods = [
            CodeExtractor::extract_binary_parser,
            CodeExtractor::extract_disassembly,
            CodeExtractor::extract_control_flow,
            CodeExtractor::extract_function_analysis,
        ];

        for method in &methods {
            let result = method().unwrap();

            // Test string properties
            assert!(!result.is_empty(), "Result should not be empty");
            assert!(result.is_ascii(), "Result should be ASCII");
            assert!(
                !result.contains('\0'),
                "Result should not contain null bytes"
            );
            assert!(result.len() > 10, "Result should have meaningful content");

            // Test that it's a valid comment
            assert!(result.starts_with("//"), "Should be a comment");
        }
    }

    #[test]
    fn test_memory_safety() {
        // Test that multiple calls don't cause memory issues
        for _ in 0..100 {
            let _result1 = CodeExtractor::extract_binary_parser();
            let _result2 = CodeExtractor::extract_disassembly();
            let _result3 = CodeExtractor::extract_control_flow();
            let _result4 = CodeExtractor::extract_function_analysis();

            let _format = TypeAdapter::adapt_binary_format();
            let _arch = TypeAdapter::adapt_architecture();
        }
    }

    #[test]
    fn test_concurrent_access() {
        use std::thread;

        // Test that methods are thread-safe
        let handles: Vec<_> = (0..10)
            .map(|_| {
                thread::spawn(|| {
                    let _result = CodeExtractor::extract_binary_parser();
                    let _format = TypeAdapter::adapt_binary_format();
                })
            })
            .collect();

        for handle in handles {
            handle.join().unwrap();
        }
    }
}