/// Integration test: JWT validation with mocked Authentik JWKS
use mem_cli::jwt_validator::{JwtValidator, JwtClaims};
use serde_json::json;

/// Mock JWKS response from Authentik
fn mock_jwks_response() -> String {
    json!({
        "keys": [
            {
                "kty": "RSA",
                "use": "sig",
                "kid": "test-key-1",
                "alg": "RS256",
                "n": "0vx7agoebGcQSuuPiLJXZptN9nndrQmbXEps2aiAFbWhM78LhWx4cbbfAAtVT86zwu1RK7aPFFxuhDR1L6tSoc_BJECPebWKRXjBZCiFV4n3oknjhMstn64tZ_2W-5JsGY4Hc5n9yBXArwl93lqt7_RN5w6Cf0h4QyQ5v-65YGjQR0_FDW2QvzqY368QQMicAtaSqzs8KJZgnYb9c7d0zgdAZHzu6qMQvRL5hajrn1n91CbOpbISD08qNLyrdkt-bFTWhAI4vMQFh6WeZu0fM4lFd2NcRwr3XPksINHaQ-G_xBniIqbw0Ls1jF44-csFCur-kEgU8awapJzKnqDKgw",
                "e": "AQAB"
            }
        ]
    }).to_string()
}

/// Mock OIDC discovery endpoint
fn mock_discovery_response() -> String {
    json!({
        "issuer": "https://authentik.test/application/o/memory/",
        "token_endpoint": "https://authentik.test/application/o/token/",
        "jwks_uri": "https://authentik.test/application/o/memory/jwks/",
        "id_token_signing_alg_values_supported": ["RS256"]
    }).to_string()
}

#[test]
fn test_bearer_token_extraction() {
    // Test bearer token extraction from header
    let header = "Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyMTIzIn0.test";
    
    match JwtValidator::extract_bearer_token(header) {
        Ok(token) => {
            assert_eq!(token, "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyMTIzIn0.test");
        }
        Err(e) => panic!("Failed to extract bearer token: {}", e),
    }
}

#[test]
fn test_jwt_claims_with_read_permission() {
    let claims = JwtClaims {
        sub: "user123".to_string(),
        iss: "https://authentik.test/application/o/memory/".to_string(),
        aud: "poimen-memory".to_string(),
        exp: 9999999999,
        iat: 1000000000,
        nbf: None,
        permissions: Some(vec!["memory:read".to_string()]),
        groups: Some(vec!["users".to_string()]),
    };

    // Verify read permission exists
    assert!(claims.permissions.is_some());
    let perms = claims.permissions.unwrap();
    assert!(perms.iter().any(|p| p == "memory:read"));
}

#[test]
fn test_jwt_claims_with_write_permission() {
    let claims = JwtClaims {
        sub: "admin".to_string(),
        iss: "https://authentik.test/application/o/memory/".to_string(),
        aud: "poimen-memory".to_string(),
        exp: 9999999999,
        iat: 1000000000,
        nbf: None,
        permissions: Some(vec!["memory:read".to_string(), "memory:write".to_string()]),
        groups: Some(vec!["admins".to_string()]),
    };

    // Verify both permissions exist
    assert!(claims.permissions.is_some());
    let perms = claims.permissions.unwrap();
    assert!(perms.iter().any(|p| p == "memory:read"));
    assert!(perms.iter().any(|p| p == "memory:write"));
}

#[test]
fn test_jwt_claims_with_wildcard_permission() {
    let claims = JwtClaims {
        sub: "homelab-admin".to_string(),
        iss: "https://authentik.test/application/o/memory/".to_string(),
        aud: "poimen-memory".to_string(),
        exp: 9999999999,
        iat: 1000000000,
        nbf: None,
        permissions: Some(vec!["*".to_string()]),
        groups: Some(vec!["homelab-admins".to_string()]),
    };

    // Verify wildcard permission
    assert!(claims.permissions.is_some());
    let perms = claims.permissions.unwrap();
    assert!(perms.contains(&"*".to_string()));
}

#[test]
fn test_jwt_validator_configuration() {
    let issuer = "https://authentik.test/application/o/memory/".to_string();
    let audience = "poimen-memory".to_string();
    let cache_ttl = 3600;

    let validator = JwtValidator::new(issuer.clone(), audience.clone(), cache_ttl);

    assert_eq!(validator.issuer, issuer);
    assert_eq!(validator.audience, audience);
}

#[test]
fn test_mock_jwks_response_structure() {
    let jwks_json = mock_jwks_response();
    let jwks: serde_json::Value = serde_json::from_str(&jwks_json).unwrap();

    // Verify JWKS has required structure
    assert!(jwks.get("keys").is_some());
    let keys = jwks["keys"].as_array().unwrap();
    assert!(!keys.is_empty());

    let key = &keys[0];
    assert_eq!(key["kty"], "RSA");
    assert_eq!(key["alg"], "RS256");
    assert!(key.get("kid").is_some());
    assert!(key.get("n").is_some());
    assert!(key.get("e").is_some());
}

#[test]
fn test_mock_discovery_response_structure() {
    let discovery_json = mock_discovery_response();
    let discovery: serde_json::Value = serde_json::from_str(&discovery_json).unwrap();

    // Verify discovery doc has required endpoints
    assert!(discovery.get("issuer").is_some());
    assert!(discovery.get("token_endpoint").is_some());
    assert!(discovery.get("jwks_uri").is_some());
    assert!(discovery.get("id_token_signing_alg_values_supported").is_some());

    assert_eq!(discovery["issuer"], "https://authentik.test/application/o/memory/");
    assert_eq!(discovery["id_token_signing_alg_values_supported"][0], "RS256");
}

#[test]
fn test_capability_check_logic() {
    // Simulate capability checking
    fn has_capability(permissions: &Option<Vec<String>>, required: &str) -> bool {
        if let Some(perms) = permissions {
            if perms.contains(&"*".to_string()) {
                return true;
            }
            perms.contains(&required.to_string())
        } else {
            false
        }
    }

    // Test with read permission
    let read_perms = Some(vec!["memory:read".to_string()]);
    assert!(has_capability(&read_perms, "memory:read"));
    assert!(!has_capability(&read_perms, "memory:write"));

    // Test with write permission
    let write_perms = Some(vec!["memory:write".to_string()]);
    assert!(!has_capability(&write_perms, "memory:read"));
    assert!(has_capability(&write_perms, "memory:write"));

    // Test with wildcard
    let wildcard = Some(vec!["*".to_string()]);
    assert!(has_capability(&wildcard, "memory:read"));
    assert!(has_capability(&wildcard, "memory:write"));
    assert!(has_capability(&wildcard, "any:permission"));

    // Test with no permissions
    let no_perms: Option<Vec<String>> = None;
    assert!(!has_capability(&no_perms, "memory:read"));
}

#[test]
fn test_jwt_auth_modes() {
    // Test enum variants
    use mem_cli::http_server::AuthMode;
    
    let _jwt_mode = AuthMode::Jwt;
    let _apikey_mode = AuthMode::ApiKey;

    // Both should be created without panic
    println!("Auth modes created successfully");
}