use mem_cli::verify::{Verifier, VerifyOpts, OutputFormat};
use std::path::PathBuf;
use tempfile::TempDir;
use std::fs;

#[tokio::test]
async fn a1_clean_passes() {
    // Create a minimal clean log
    let temp_dir = TempDir::new().unwrap();
    let log_dir = temp_dir.path().join("log");
    fs::create_dir(&log_dir).unwrap();

    // Write clean log with one L1 and one L0
    let log_content = r#"{"project": "test", "level": "L0", "text": "error output", "parents": [], "gate": false, "run_id": "run1", "query_id": "q1"}
{"project": "test", "level": "L1", "text": "learned lesson", "parents": [{"text": "error output"}], "gate": true, "run_id": "run1", "query_id": "q1"}
"#;

    fs::write(log_dir.join("test.jsonl"), log_content).unwrap();

    let opts = VerifyOpts {
        project: "test".to_string(),
        check_db: false,  // No database in unit test
        check_log: true,
        log_dir: Some(log_dir),
        format: OutputFormat::Text,
    };

    let verifier = Verifier::new("postgresql://dummy").await.unwrap_or_else(|_| {
        // Create a mock verifier if DB connection fails
        panic!("Test should not reach here");
    });

    let result = verifier.verify(opts).await;
    // We can't actually test this without a database
    // This is more of a unit test structure
}

#[tokio::test]
async fn a2_orphan_memory_would_fail() {
    // Test structure: L1 with empty parents
    // In a real test, this would be caught by:
    // Invariant 1: "L1 memory has no parents (evidence)"
    
    // This demonstrates the test structure needed for M2.7
}

#[test]
fn a3_dangling_parent_detection() {
    // Invariant 2: Parent sha not found in log
    // Would need to parse log and check all parent refs exist
}

#[test]
fn a4_uncited_evidence_detection() {
    // Invariant 3: Evidence sha is not cited by any memory
}

#[test]
fn a5_evidence_gate_mismatch() {
    // Invariant 4: evidence count != gate.update==true count
}

#[test]
fn a6_cycle_detection() {
    // Invariant 5: A → B → A would create a cycle
}

#[test]
fn a7_level_mismatch_detection() {
    // Invariant 6: L2 node with L0 parent (should be L1)
}

#[test]
fn a8_reports_all_violations() {
    // Create fixture with 3 violations
    // Assert all 3 appear in output
    // (not fail-fast behavior)
}

#[test]
fn a9_db_and_log_independent() {
    // Introduce violation in DB only
    // Assert --log catches nothing, --db catches it
    // Proves two checks are independent
}