use proxywarden_lib::adapters::proxifyre::ProxiFyreAdapter;
use proxywarden_lib::commands::{
    self, apply_profiles_with_services, apply_profiles_with_services_and_detection, build_status,
    read_saved_state, resolve_component_statuses, resolve_preview, save_profile_to_storage,
    save_target_to_storage, Clock, CommandError, DetectedProxyApplyHelper, HelperApplyRequest,
    HelperApplyResult, ProfileInputDto, ProfileItemInputDto, ProxyApplyHelper, TargetInputDto,
};
use proxywarden_lib::component_detection::{
    DetectedProxyfier, ProxyfierDetectionHost, ProxyfierEngine, RegistryInstallEntry,
};
use proxywarden_lib::models::{
    self, ComponentId, ComponentState, Profile, ProfileItem, ProfileItemType, Protocol,
    ProxyProtocol, Target, TargetKind,
};
#[cfg(windows)]
use proxywarden_lib::safe_fs;
use proxywarden_lib::storage::JsonStorage;
use std::collections::{HashMap, HashSet};
use std::fs;
use std::net::TcpListener;
use std::path::{Path, PathBuf};
use std::time::{SystemTime, UNIX_EPOCH};

#[test]
fn save_commands_normalize_and_persist_profile_and_target() {
    let root = test_root("save");
    let storage = JsonStorage::new(root.clone());

    let target = save_target_to_storage(
        &storage,
        TargetInputDto {
            id: Some("Home Gateway".to_string()),
            name: " Home Gateway ".to_string(),
            kind: Some("external".to_string()),
            protocol: Some("socks5".to_string()),
            host: " 192.168.50.111 ".to_string(),
            port: 8080,
            requires_component: None,
        },
    )
    .expect("target command should normalize");
    let profile = save_profile_to_storage(
        &storage,
        ProfileInputDto {
            id: Some("Discord".to_string()),
            name: " Discord ".to_string(),
            enabled: Some(true),
            target_id: Some("home-gateway".to_string()),
            protocols: Some(vec!["tcp".to_string(), "UDP".to_string()]),
            items: Some(vec![ProfileItemInputDto {
                item_type: "process".to_string(),
                value: "Discord.exe".to_string(),
                recursive: None,
            }]),
        },
    )
    .expect("profile command should normalize");

    assert_eq!(target.id, "home-gateway");
    assert_eq!(profile.id, "discord");
    assert_eq!(profile.target_id, "home-gateway");
    assert_eq!(profile.items[0].value, "Discord");

    let status = build_status(&storage).expect("status command should read stored state");
    assert_eq!(
        status.route_line,
        "Выбранные приложения -> ProxiFyre -> внешний прокси 192.168.50.111:8080"
    );
    assert_eq!(status.active_profile_count, 1);
    assert_eq!(status.routed_app_count, 1);

    cleanup(&root);
}

#[test]
fn saved_state_read_never_opportunistically_imports_proxifyre_config() {
    let root = test_root("proxifyre-config-import");
    let storage = JsonStorage::new(root.clone());
    let install_dir = root.join("ProxiFyre");
    let config_path = install_dir.join("app-config.json");
    fs::create_dir_all(&install_dir).expect("create proxifyre dir");
    fs::write(
        &config_path,
        r#"{
  "logLevel": "Info",
  "bypassLan": true,
  "proxies": [
    {
      "appNames": ["Discord.exe", "C:\\Games\\Launcher.exe"],
      "socks5ProxyEndpoint": "127.0.0.1:1090",
      "supportedProtocols": ["TCP", "UDP"]
    }
  ]
}"#,
    )
    .expect("write proxifyre config");
    let source_before = fs::read(&config_path).expect("read proxifyre config before normal read");

    let state =
        read_saved_state(&storage).expect("normal read should ignore legacy runtime config");

    assert!(state.profiles.is_empty());
    assert!(state.targets.is_empty());
    assert!(!storage.paths().profiles_file.exists());
    assert!(!storage.paths().targets_file.exists());
    assert_eq!(
        fs::read(&config_path).expect("read proxifyre config after normal read"),
        source_before
    );

    cleanup(&root);
}

#[test]
fn saved_state_keeps_existing_proxywarden_profiles_over_proxifyre_config() {
    let root = test_root("proxifyre-config-keeps-state");
    let storage = JsonStorage::new(root.clone());
    let install_dir = root.join("ProxiFyre");
    let config_path = install_dir.join("app-config.json");
    fs::create_dir_all(&install_dir).expect("create proxifyre dir");
    fs::write(
        &config_path,
        r#"{
  "logLevel": "Info",
  "bypassLan": true,
  "proxies": [
    {
      "appNames": ["Telegram.exe"],
      "socks5ProxyEndpoint": "127.0.0.1:1091",
      "supportedProtocols": ["TCP"]
    }
  ]
}"#,
    )
    .expect("write proxifyre config");
    storage
        .write_profiles(&[discord_profile("home-gateway")])
        .expect("write profiles");
    storage
        .write_targets(&[external_socks5_target()])
        .expect("write targets");

    let state = read_saved_state(&storage).expect("state should keep proxywarden storage");

    assert_eq!(state.profiles.len(), 1);
    assert_eq!(state.profiles[0].id, "discord");
    assert_eq!(state.profiles[0].items[0].value, "Discord");
    assert_eq!(state.targets[0].id, "home-gateway");

    cleanup(&root);
}

#[test]
fn resolve_preview_returns_structured_apps_without_filesystem_scan() {
    let preview = resolve_preview(ProfileInputDto {
        id: Some("Game".to_string()),
        name: "Game".to_string(),
        enabled: Some(true),
        target_id: Some("home-gateway".to_string()),
        protocols: Some(vec!["TCP".to_string()]),
        items: Some(vec![
            ProfileItemInputDto {
                item_type: "process".to_string(),
                value: "Discord.exe".to_string(),
                recursive: None,
            },
            ProfileItemInputDto {
                item_type: "folder".to_string(),
                value: r"C:\Games\Launcher".to_string(),
                recursive: Some(true),
            },
        ]),
    })
    .expect("preview should normalize profile input");

    assert_eq!(preview.profile_id, "game");
    assert_eq!(preview.apps.len(), 2);
    assert_eq!(preview.apps[0].app_name, "Discord");
    assert_eq!(preview.apps[1].source_type, ProfileItemType::Folder);
    assert!(preview
        .warnings
        .iter()
        .any(|warning| warning.contains("Сканирование папок отложено")));
}

#[test]
fn ping_proxy_target_reports_open_tcp_endpoint() {
    let listener = TcpListener::bind("127.0.0.1:0").expect("bind local listener");
    let port = listener.local_addr().expect("read local addr").port();

    let result = commands::ping_proxy_target_endpoint_with_probes(
        commands::PingProxyTargetInputDto {
            host: "127.0.0.1".to_string(),
            port,
        },
        &[],
    )
    .expect("ping should return response");

    assert_eq!(result.tag, "route-proxy");
    assert_eq!(result.server, "127.0.0.1");
    assert_eq!(result.server_port, port);
    assert!(result.ok);
    assert!(result.latency.is_some());
    assert!(result.probes.is_empty());
}

#[test]
fn apply_generates_derived_config_and_records_activity_with_mock_helper() {
    let root = test_root("apply");
    let storage = JsonStorage::new(root.clone());
    storage
        .write_profiles(&[discord_profile("home-gateway")])
        .expect("write profiles");
    storage
        .write_targets(&[external_socks5_target()])
        .expect("write targets");
    let response = apply_profiles_with_services(
        &storage,
        &ProxiFyreAdapter::default(),
        &MockApplyHelper,
        &FixedClock,
    )
    .expect("apply command should generate config and call helper");

    let generated_path = PathBuf::from(&response.generated_config_path);
    let generated_contents = fs::read_to_string(&generated_path).expect("read generated config");
    let activity = storage.read_activity().expect("read activity");

    assert!(response.success);
    assert!(response.changed);
    assert_eq!(response.adapter_id, "proxifyre");
    assert_eq!(response.enabled_profiles, 1);
    assert_eq!(response.routed_apps, 1);
    assert_eq!(response.helper.action, "proxyfier.apply.mock");
    assert!(generated_contents.contains("\"appNames\""));
    assert!(generated_contents.contains("Discord"));
    assert!(generated_path.ends_with("proxifyre-app-config.json"));
    #[cfg(windows)]
    safe_fs::verify_path_protected_for_owner_admin_system(&generated_path)
        .expect("generated ProxiFyre config keeps restricted ACL");
    assert_eq!(activity.len(), 1);
    assert_eq!(activity[0].at, "2026-07-03T00:00:00Z");
    assert_eq!(activity[0].title, "Конфиг ProxiFyre создан");

    cleanup(&root);
}

#[test]
fn apply_blocks_local_singbox_target_when_component_is_missing() {
    let root = test_root("missing-singbox");
    let storage = JsonStorage::new(root.clone());
    storage
        .write_profiles(&[discord_profile("local-singbox")])
        .expect("write profiles");
    storage
        .write_targets(&[local_singbox_target()])
        .expect("write targets");
    let error = apply_profiles_with_services_and_detection(
        &storage,
        &ProxiFyreAdapter::default(),
        &MockApplyHelper,
        &FixedClock,
        None,
        None,
    )
    .expect_err("missing sing-box should block local target apply");
    let activity = storage.read_activity().expect("read blocked activity");

    assert_eq!(error.code, "required_component_not_running");
    assert_eq!(activity.len(), 1);
    assert_eq!(activity[0].level, models::ActivityLevel::Error);
    assert_eq!(activity[0].title, "Применение ProxiFyre заблокировано");

    cleanup(&root);
}

#[test]
fn component_status_merges_detected_existing_proxifyre() {
    let components = resolve_component_statuses(
        Some(DetectedProxyfier {
            engine: ProxyfierEngine::ProxiFyre,
            name: "ProxiFyre".to_string(),
            install_dir: PathBuf::from(r"C:\Tools\ProxiFyre"),
            executable_path: PathBuf::from(r"C:\Tools\ProxiFyre\ProxiFyre.exe"),
            config_path: Some(PathBuf::from(r"C:\Tools\ProxiFyre\app-config.json")),
            running: true,
            service_name: Some("ProxiFyreService".to_string()),
            service_status: Some("running".to_string()),
            version: Some("2.2.1.0".to_string()),
        }),
        None,
    );
    let proxyfier = components
        .iter()
        .find(|component| component.id == ComponentId::Proxyfier)
        .expect("proxyfier component");

    assert_eq!(proxyfier.state, ComponentState::Running);
    assert!(proxyfier.installed);
    assert!(proxyfier.running);
    assert_eq!(proxyfier.path, Some(r"C:\Tools\ProxiFyre".to_string()));
    assert!(proxyfier.problems.is_empty());
}

#[test]
fn component_status_reports_missing_when_detection_is_missing() {
    let components = resolve_component_statuses(None, None);
    let proxyfier = components
        .iter()
        .find(|component| component.id == ComponentId::Proxyfier)
        .expect("proxyfier component");

    assert_eq!(proxyfier.state, ComponentState::Missing);
    assert!(!proxyfier.installed);
    assert!(!proxyfier.running);
    assert_eq!(proxyfier.path, None);
}

#[test]
fn managed_current_apply_stages_generated_config_without_writing_sealed_runtime_snapshot() {
    let root = test_root("detected-proxifyre");
    let install_dir = root.join("ProxiFyre");
    fs::create_dir_all(&install_dir).expect("install dir");
    fs::write(install_dir.join("ProxiFyre.exe"), "mock exe").expect("mock exe");
    fs::write(install_dir.join("app-config.json"), "{}").expect("existing config");
    fs::write(
        install_dir.join("proxywarden-component.json"),
        serde_json::to_vec_pretty(&serde_json::json!({
            "manager": "ProxyWarden",
            "component": "proxifyre",
            "serviceName": "ProxiFyreService",
            "installRoot": install_dir.display().to_string(),
            "packetFilterInstalledByProxyWarden": false
        }))
        .expect("marker JSON"),
    )
    .expect("managed marker");
    let generated_config = root.join("generated").join("proxifyre-app-config.json");
    let host = DetectionHost::new()
        .with_registry("ProxiFyre", &install_dir)
        .with_path(&install_dir)
        .with_path(&install_dir.join("ProxiFyre.exe"))
        .with_service_path(
            "ProxiFyreService",
            &format!(
                r#""{}" --service"#,
                install_dir.join("ProxiFyre.exe").display()
            ),
        );
    let helper = DetectedProxyApplyHelper::with_current_root(host, install_dir.clone());

    let result = helper
        .apply_proxy_config(HelperApplyRequest {
            adapter_id: "proxifyre",
            config_path: &generated_config,
            config_contents: r#"{"proxies":[]}"#,
        })
        .expect("detected helper should apply");

    assert!(result.success);
    assert!(result.changed);
    assert_eq!(result.action, "proxifyre.stage-managed-config");
    assert_eq!(
        fs::read_to_string(install_dir.join("app-config.json"))
            .expect("read unchanged runtime snapshot"),
        "{}"
    );
    assert!(!install_dir.join("app-config.json.bak").exists());
    assert!(result.message.contains("следующем явном запуске"));

    cleanup(&root);
}

#[test]
fn detected_proxy_apply_helper_does_not_write_for_foreign_service_collision() {
    let root = test_root("detected-proxifyre-foreign-service");
    let install_dir = root.join("ProxiFyre");
    let config_path = install_dir.join("app-config.json");
    fs::create_dir_all(&install_dir).expect("install dir");
    fs::write(install_dir.join("ProxiFyre.exe"), "mock exe").expect("mock exe");
    fs::write(&config_path, "original").expect("existing config");
    fs::write(
        install_dir.join("proxywarden-component.json"),
        serde_json::to_vec_pretty(&serde_json::json!({
            "manager": "ProxyWarden",
            "component": "proxifyre",
            "serviceName": "ProxiFyreService",
            "installRoot": install_dir.display().to_string(),
            "packetFilterInstalledByProxyWarden": false
        }))
        .expect("marker JSON"),
    )
    .expect("managed marker");
    let generated_config = root.join("generated").join("proxifyre-app-config.json");
    let host = DetectionHost::new()
        .with_path(&install_dir)
        .with_path(&install_dir.join("ProxiFyre.exe"))
        .with_service_path(
            "ProxiFyreService",
            r#""C:\Foreign\ProxiFyre.exe" --service"#,
        );
    let helper = DetectedProxyApplyHelper::with_current_root(host, install_dir.clone());

    let error = helper
        .apply_proxy_config(HelperApplyRequest {
            adapter_id: "proxifyre",
            config_path: &generated_config,
            config_contents: r#"{"proxies":[]}"#,
        })
        .expect_err("foreign service collision must fail before config write");

    assert_eq!(error.code, "ownership_mismatch");
    assert_eq!(fs::read_to_string(&config_path).unwrap(), "original");
    assert!(!install_dir.join("app-config.json.bak").exists());

    cleanup(&root);
}

#[test]
fn detected_proxy_apply_helper_ignores_plain_proxifier_install() {
    let root = test_root("detected-proxifier");
    let install_dir = root.join("Proxifier");
    fs::create_dir_all(&install_dir).expect("install dir");
    fs::write(install_dir.join("Proxifier.exe"), "mock exe").expect("mock exe");
    let generated_config = root.join("generated").join("proxifyre-app-config.json");
    let host = DetectionHost::new()
        .with_registry("Proxifier", &install_dir)
        .with_path(&install_dir)
        .with_path(&install_dir.join("Proxifier.exe"));
    let helper = DetectedProxyApplyHelper::from(host);

    let result = helper
        .apply_proxy_config(HelperApplyRequest {
            adapter_id: "proxifyre",
            config_path: &generated_config,
            config_contents: r#"{"proxies":[]}"#,
        })
        .expect("plain Proxifier should be ignored and config should be staged");

    assert!(result.success);
    assert!(result.changed);
    assert_eq!(result.action, "proxifyre.stage-generated-config");
    assert!(result
        .message
        .contains("совместимая установка ProxiFyre не найдена"));

    cleanup(&root);
}

struct MockApplyHelper;

impl ProxyApplyHelper for MockApplyHelper {
    fn apply_proxy_config(
        &self,
        request: HelperApplyRequest<'_>,
    ) -> Result<HelperApplyResult, CommandError> {
        assert_eq!(request.adapter_id, "proxifyre");
        assert!(request.config_contents.contains("Discord"));
        assert!(request.config_path.ends_with("proxifyre-app-config.json"));

        Ok(HelperApplyResult {
            success: true,
            changed: true,
            action: "proxyfier.apply.mock".to_string(),
            message: "Mock helper accepted generated ProxiFyre config".to_string(),
        })
    }
}

struct FixedClock;

impl Clock for FixedClock {
    fn now(&self) -> String {
        "2026-07-03T00:00:00Z".to_string()
    }
}

#[derive(Default)]
struct DetectionHost {
    paths: HashSet<String>,
    registry: Vec<RegistryInstallEntry>,
    service_paths: HashMap<String, String>,
}

impl DetectionHost {
    fn new() -> Self {
        Self::default()
    }

    fn with_path(mut self, path: &Path) -> Self {
        self.paths.insert(normalize_path(path));
        self
    }

    fn with_registry(mut self, display_name: &str, install_location: &Path) -> Self {
        self.registry.push(RegistryInstallEntry {
            display_name: display_name.to_string(),
            install_location: Some(install_location.to_path_buf()),
            display_icon: None,
        });
        self
    }

    fn with_service_path(mut self, service_name: &str, path_name: &str) -> Self {
        self.service_paths
            .insert(service_name.to_ascii_lowercase(), path_name.to_string());
        self
    }
}

impl ProxyfierDetectionHost for DetectionHost {
    fn env_var(&self, _name: &str) -> Option<String> {
        None
    }

    fn path_exists(&self, path: &Path) -> bool {
        self.paths.contains(&normalize_path(path))
    }

    fn process_running(&self, _process_name: &str) -> bool {
        false
    }

    fn service_status(&self, _service_name: &str) -> Option<String> {
        self.service_paths
            .contains_key(&_service_name.to_ascii_lowercase())
            .then(|| "stopped".to_string())
    }

    fn service_info(
        &self,
        service_name: &str,
    ) -> Option<proxywarden_lib::component_detection::DetectedService> {
        self.service_paths
            .get(&service_name.to_ascii_lowercase())
            .map(
                |path_name| proxywarden_lib::component_detection::DetectedService {
                    name: service_name.to_string(),
                    status: "stopped".to_string(),
                    path_name: Some(path_name.clone()),
                },
            )
    }

    fn registry_install_entries(&self) -> Vec<RegistryInstallEntry> {
        self.registry.clone()
    }

    fn read_text(&self, path: &Path) -> Option<String> {
        fs::read_to_string(path).ok()
    }
}

fn normalize_path(path: &Path) -> String {
    path.display()
        .to_string()
        .replace('/', "\\")
        .to_ascii_lowercase()
}

fn test_root(name: &str) -> PathBuf {
    let timestamp = SystemTime::now()
        .duration_since(UNIX_EPOCH)
        .expect("system clock before unix epoch")
        .as_nanos();

    std::env::temp_dir().join(format!("proxywarden-commands-{name}-{timestamp}"))
}

fn cleanup(root: &Path) {
    let _ = fs::remove_dir_all(root);
}

fn discord_profile(target_id: &str) -> Profile {
    Profile {
        id: "discord".to_string(),
        name: "Discord".to_string(),
        enabled: true,
        target_id: target_id.to_string(),
        protocols: vec![Protocol::Tcp, Protocol::Udp],
        items: vec![ProfileItem {
            item_type: ProfileItemType::Process,
            value: "Discord".to_string(),
            recursive: false,
        }],
    }
}

fn external_socks5_target() -> Target {
    Target {
        id: "home-gateway".to_string(),
        name: "Домашний шлюз".to_string(),
        kind: TargetKind::External,
        protocol: ProxyProtocol::Socks5,
        host: "192.168.50.111".to_string(),
        port: 8080,
        requires_component: None,
    }
}

fn local_singbox_target() -> Target {
    Target {
        id: "local-singbox".to_string(),
        name: "Локальный sing-box".to_string(),
        kind: TargetKind::Local,
        protocol: ProxyProtocol::Socks5,
        host: "127.0.0.1".to_string(),
        port: 1080,
        requires_component: Some(ComponentId::Singbox),
    }
}