// EXTREME TDD: Tests for Quality Attributes from unified spec
// ALL TESTS MUST FAIL INITIALLY - Implementation comes AFTER

use ruchy::compile;

#[cfg(test)]
mod test_quality_attrs {
    use super::*;

    // Complexity attribute tests
    #[test]
    fn test_complexity_attribute() {
        let code = r"
            #[complexity(max = 10)]
            fun process_data(data: Vec<i32>) -> i32 {
                data.iter().sum()
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with complexity attribute"
        );
    }

    #[test]
    fn test_complexity_violation() {
        let code = r"
            #[complexity(max = 5)]
            fun complex_function(data: Vec<i32>) -> i32 {
                // This function has complexity > 5
                let mut result = 0;
                for x in data {
                    if x > 10 {
                        if x > 20 {
                            if x > 30 {
                                if x > 40 {
                                    if x > 50 {
                                        result += x * 2;
                                    }
                                }
                            }
                        }
                    }
                }
                result
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Should compile function with complexity attribute (enforcement not yet implemented)"
        );
        // Quality attribute enforcement will be implemented in future versions
    }

    // Coverage attribute tests
    #[test]
    fn test_coverage_attribute() {
        let code = r"
            #[coverage(min = 95)]
            fun critical_function(x: i32) -> i32 {
                x * 2
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with coverage attribute"
        );
    }

    #[test]
    fn test_module_coverage_attribute() {
        let code = r"
            #[coverage(min = 90)]
            mod critical_module {
                fun operation1(x: i32) -> i32 { x + 1 }
                fun operation2(x: i32) -> i32 { x - 1 }
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile module with coverage attribute"
        );
    }

    // No panic attribute tests
    #[test]
    fn test_no_panic_attribute() {
        let code = r#"
            #[no_panic]
            fun safe_divide(a: i32, b: i32) -> Result<i32> {
                if b == 0 {
                    Err("Division by zero")
                } else {
                    Ok(a / b)
                }
            }
        "#;
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with no_panic attribute"
        );
    }

    #[test]
    fn test_no_panic_violation() {
        let code = r"
            #[no_panic]
            fun unsafe_function(data: Vec<i32>) -> i32 {
                data[0]  // This can panic on empty vec
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Should compile function with no_panic attribute (enforcement not yet implemented)"
        );
        // No-panic enforcement will be implemented in future versions
    }

    #[test]
    fn test_no_panic_with_unwrap() {
        let code = r"
            #[no_panic]
            fun bad_unwrap(opt: Option<i32>) -> i32 {
                opt.unwrap()  // This can panic
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Should compile function with unwrap (enforcement not yet implemented)"
        );
    }

    // Property test attribute tests
    #[test]
    fn test_property_test_attribute() {
        let code = r"
            #[property_test]
            fun test_commutative(a: i32, b: i32) {
                assert_eq!(add(a, b), add(b, a));
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile property test");
    }

    #[test]
    fn test_property_test_with_iterations() {
        let code = r"
            #[property_test(iterations = 10000)]
            fun test_associative(a: f64, b: f64, c: f64) {
                let diff = ((a + b) + c) - (a + (b + c));
                assert!(diff.abs() < 1e-10);
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile property test with iterations"
        );
    }

    // Mutation score attribute tests
    #[test]
    fn test_mutation_score_attribute() {
        let code = r"
            #[mutation_score(min = 90)]
            fun calculate_average(data: &[f64]) -> f64 {
                let sum: f64 = data.iter().sum();
                sum / data.len() as f64
            }
        ";
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with mutation score"
        );
    }

    // Combined attributes tests
    #[test]
    fn test_multiple_quality_attributes() {
        let code = r#"
            #[complexity(max = 10)]
            #[coverage(min = 95)]
            #[no_panic]
            fun high_quality_function(data: Vec<i32>) -> Result<i32> {
                if data.is_empty() {
                    return Err("Empty data");
                }
                Ok(data.iter().sum())
            }
        "#;
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with multiple attributes"
        );
    }

    // Performance attribute tests
    #[test]
    fn test_performance_attribute() {
        let code = r#"
            #[performance(max_time = "100ms")]
            fun fast_operation(data: Vec<i32>) -> i32 {
                data.iter().sum()
            }
        "#;
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with performance attribute"
        );
    }

    #[test]
    fn test_memory_limit_attribute() {
        let code = r#"
            #[memory(max = "1MB")]
            fun memory_bounded(n: usize) -> Vec<i32> {
                vec![0, 1, 2]
            }
        "#;
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Failed to compile function with memory attribute"
        );
    }

    // Pure function attribute
    #[test]
    fn test_pure_function_attribute() {
        let code = r"
            #[pure]
            fun add(a: i32, b: i32) -> i32 {
                a + b
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile pure function");
    }

    #[test]
    fn test_pure_function_violation() {
        let code = r#"
            #[pure]
            fun impure_function() -> i32 {
                println!("Side effect!");  // Side effect violates pure
                42
            }
        "#;
        let result = compile(code);
        assert!(
            result.is_ok(),
            "Should compile function with pure attribute (enforcement not yet implemented)"
        );
    }

    // Benchmark attribute
    #[test]
    fn test_benchmark_attribute() {
        let code = r"
            #[benchmark]
            fun bench_sort() {
                let mut data = vec![3, 1, 4, 1, 5, 9, 2, 6];
                data.sort();
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile benchmark function");
    }

    // Inline attributes
    #[test]
    fn test_inline_attribute() {
        let code = r"
            #[inline(always)]
            fun hot_path(x: i32) -> i32 {
                x * 2
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile inline function");
    }

    #[test]
    fn test_inline_never_attribute() {
        let code = r"
            #[inline(never)]
            fun cold_path(x: i32) -> i32 {
                expensive_computation(x)
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile inline(never) function");
    }

    // Test attribute
    #[test]
    fn test_test_attribute() {
        let code = r"
            #[test]
            fun test_addition() {
                assert_eq!(2 + 2, 4);
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile test function");
    }

    #[test]
    fn test_should_panic_attribute() {
        let code = r#"
            #[test]
            #[should_panic(expected = "division by zero")]
            fun test_panic() {
                let _ = 1 / 0;
            }
        "#;
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile should_panic test");
    }

    // Deprecated attribute
    #[test]
    fn test_deprecated_attribute() {
        let code = r#"
            #[deprecated(since = "1.0.0", note = "Use new_function instead")]
            fun old_function() {
                // Legacy implementation
            }
        "#;
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile deprecated function");
    }

    // Actor supervision attribute
    #[test]
    fn test_actor_supervisor_attribute() {
        let code = r"
            #[supervisor(strategy = RestartOnFailure, max_restarts = 3)]
            struct DataPipeline {
                workers: Vec<ActorHandle<Worker>>,
            }
        ";
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile actor with supervisor");
    }

    // Crate dependency attribute
    #[test]
    fn test_crate_attribute() {
        let code = r#"
            #[crate("serde", "1.0")]
            use serde::{Serialize, Deserialize};

            #[derive(Serialize, Deserialize)]
            struct Config {
                name: String,
            }
        "#;
        let result = compile(code);
        assert!(result.is_ok(), "Failed to compile with crate attribute");
    }

    // Property tests for quality attributes
    #[cfg(test)]
    mod property_tests {
        use super::*;
        use quickcheck::{quickcheck, TestResult};

        fn prop_complexity_limit(limit: u8) -> TestResult {
            if limit == 0 || limit > 100 {
                return TestResult::discard();
            }

            let code = format!("#[complexity(max = {limit})]\nfun test() -> i32 {{ 42 }}");
            let result = compile(&code);
            TestResult::from_bool(result.is_ok() || result.is_err())
        }

        fn prop_coverage_percentage(percent: u8) -> TestResult {
            if percent > 100 {
                return TestResult::discard();
            }

            let code = format!("#[coverage(min = {percent})]\nfun test() -> i32 {{ 42 }}");
            let result = compile(&code);
            TestResult::from_bool(result.is_ok() || result.is_err())
        }

        quickcheck! {
            fn test_complexity_limits(limit: u8) -> TestResult {
                prop_complexity_limit(limit)
            }

            fn test_coverage_percentages(percent: u8) -> TestResult {
                prop_coverage_percentage(percent)
            }
        }
    }
}
