//! Compliance Checking Demo
//!
//! Demonstrates the E2ETestChecklist and WasmStrictMode from PROBAR-SPEC-011:
//! - E2E test checklist validation
//! - Strict mode presets (production, development, minimal)
//! - Compliance result tracking
//!
//! Run with: cargo run --example comply_demo -p jugar-probar

use jugar_probar::strict::{E2ETestChecklist, WasmStrictMode};

fn main() {
    println!("╔══════════════════════════════════════════════════════════════╗");
    println!("║       Compliance Checking Demo (PROBAR-SPEC-011)             ║");
    println!("╚══════════════════════════════════════════════════════════════╝\n");

    demo_strict_modes();
    demo_e2e_checklist();
    demo_checklist_workflow();
    demo_compliance_validation();
}

/// Demonstrate WasmStrictMode presets
fn demo_strict_modes() {
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
    println!("  1. WASM Strict Mode Presets");
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n");

    let modes = [
        ("Production", WasmStrictMode::production()),
        ("Development", WasmStrictMode::development()),
        ("Minimal", WasmStrictMode::minimal()),
    ];

    for (name, mode) in &modes {
        println!("  {} Mode:", name);
        println!(
            "    ├─ Require code execution: {}",
            mode.require_code_execution
        );
        println!(
            "    ├─ Fail on console error: {}",
            mode.fail_on_console_error
        );
        println!(
            "    ├─ Verify custom elements: {}",
            mode.verify_custom_elements
        );
        println!(
            "    ├─ Test both threading modes: {}",
            mode.test_both_threading_modes
        );
        println!(
            "    ├─ Max WASM size: {:?}",
            mode.max_wasm_size
                .map(|s| format!("{} bytes ({:.1} MB)", s, s as f64 / 1_048_576.0))
                .unwrap_or_else(|| "unlimited".to_string())
        );
        println!("    └─ Require panic-free: {}", mode.require_panic_free);
        println!();
    }

    // Custom mode via struct initialization
    let custom = WasmStrictMode {
        require_code_execution: true,
        fail_on_console_error: true,
        verify_custom_elements: true,
        test_both_threading_modes: false,
        simulate_low_memory: false,
        verify_coop_coep_headers: true,
        validate_replay_hash: false,
        max_console_warnings: 3,
        require_cache_hits: false,
        max_wasm_size: Some(2 * 1024 * 1024), // 2MB
        require_panic_free: true,
    };

    println!("  Custom Mode (via struct):");
    println!(
        "    ├─ Fail on console error: {}",
        custom.fail_on_console_error
    );
    println!(
        "    ├─ Max console warnings: {}",
        custom.max_console_warnings
    );
    println!("    ├─ Max WASM size: {:?}", custom.max_wasm_size);
    println!("    └─ Require panic-free: {}", custom.require_panic_free);
    println!();
}

/// Demonstrate E2E test checklist
fn demo_e2e_checklist() {
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
    println!("  2. E2E Test Checklist Structure");
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n");

    let checklist = E2ETestChecklist::new();

    println!("  Checklist items (all start as false):");
    println!("    ├─ WASM executed: {}", checklist.wasm_executed);
    println!(
        "    ├─ Components registered: {}",
        checklist.components_registered
    );
    println!("    ├─ Console checked: {}", checklist.console_checked);
    println!("    ├─ Network verified: {}", checklist.network_verified);
    println!(
        "    └─ Error paths tested: {}",
        checklist.error_paths_tested
    );
    println!();

    println!("  Validation result: {:?}", checklist.validate());
    println!();
}

/// Demonstrate checklist workflow
fn demo_checklist_workflow() {
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
    println!("  3. Checklist Workflow Demo");
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n");

    // Simulate a test workflow
    let mut checklist = E2ETestChecklist::new().with_strict_mode(WasmStrictMode::production());

    println!("  Step 1: Create checklist with production strict mode");
    println!("    Validation: {:?}\n", checklist.validate());

    println!("  Step 2: Test WASM execution");
    checklist.mark_wasm_executed();
    println!("    ✓ WASM executed");
    println!("    Validation: {:?}\n", checklist.validate());

    println!("  Step 3: Verify component registration");
    checklist.mark_components_registered();
    println!("    ✓ Components registered");
    println!("    Validation: {:?}\n", checklist.validate());

    println!("  Step 4: Check console for errors");
    checklist.mark_console_checked();
    println!("    ✓ Console checked");
    println!("    Validation: {:?}\n", checklist.validate());

    println!("  Step 5: Verify network calls");
    checklist.mark_network_verified();
    println!("    ✓ Network verified");
    println!("    Validation: {:?}\n", checklist.validate());

    println!("  Step 6: Test error handling paths");
    checklist.mark_error_paths_tested();
    println!("    ✓ Error paths tested");
    println!("    Validation: {:?}\n", checklist.validate());

    println!("  Final checklist state:");
    println!("    ├─ WASM executed: {}", checklist.wasm_executed);
    println!(
        "    ├─ Components registered: {}",
        checklist.components_registered
    );
    println!("    ├─ Console checked: {}", checklist.console_checked);
    println!("    ├─ Network verified: {}", checklist.network_verified);
    println!(
        "    └─ Error paths tested: {}",
        checklist.error_paths_tested
    );
    println!();
}

/// Demonstrate compliance validation scenarios
fn demo_compliance_validation() {
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
    println!("  4. Compliance Validation Scenarios");
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━\n");

    // Scenario 1: Incomplete checklist
    let incomplete = E2ETestChecklist::new()
        .with_wasm_executed()
        .with_console_checked();

    println!("  Scenario 1: Incomplete Checklist");
    println!("    Only WASM execution and console checked");
    match incomplete.validate() {
        Ok(()) => println!("    Result: PASSED"),
        Err(e) => {
            println!("    Result: FAILED");
            println!("    Error: {}", e);
        }
    }
    println!();

    // Scenario 2: Complete checklist
    let complete = E2ETestChecklist::new()
        .with_wasm_executed()
        .with_components_registered()
        .with_console_checked()
        .with_network_verified()
        .with_error_paths_tested();

    println!("  Scenario 2: Complete Checklist");
    println!("    All items verified");
    match complete.validate() {
        Ok(()) => println!("    Result: PASSED ✓"),
        Err(e) => println!("    Result: FAILED - {}", e),
    }
    println!();

    // Scenario 3: Different strict modes
    let test_cases = [
        ("Production mode (strict)", WasmStrictMode::production()),
        ("Development mode (lenient)", WasmStrictMode::development()),
        ("Minimal mode (relaxed)", WasmStrictMode::minimal()),
    ];

    println!("  Scenario 3: Mode Comparison");
    println!("    (Using partial checklist - only WASM + console)\n");

    for (name, mode) in test_cases {
        let checklist = E2ETestChecklist::new()
            .with_strict_mode(mode)
            .with_wasm_executed()
            .with_console_checked();
        print!("    {}: ", name);
        match checklist.validate() {
            Ok(()) => println!("PASSED ✓"),
            Err(_) => println!("FAILED"),
        }
    }
    println!();

    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
    println!("  Demo complete!");
    println!("━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━");
}
