use compliance_core::models::auth::AuthInfo;
use dioxus::prelude::*;
use dioxus_free_icons::icons::bs_icons::*;
use dioxus_free_icons::Icon;

use crate::app::Route;

struct NavItem {
    label: &'static str,
    route: Route,
    icon: Element,
}

#[component]
pub fn Sidebar() -> Element {
    let current_route = use_route::<Route>();
    let mut collapsed = use_signal(|| true);

    let nav_items = [
        NavItem {
            label: "Overview",
            route: Route::OverviewPage {},
            icon: rsx! { Icon { icon: BsSpeedometer2, width: 18, height: 18 } },
        },
        NavItem {
            label: "Repositories",
            route: Route::RepositoriesPage {},
            icon: rsx! { Icon { icon: BsFolder2Open, width: 18, height: 18 } },
        },
        NavItem {
            label: "Findings",
            route: Route::FindingsPage {},
            icon: rsx! { Icon { icon: BsShieldExclamation, width: 18, height: 18 } },
        },
        NavItem {
            label: "SBOM",
            route: Route::SbomPage {},
            icon: rsx! { Icon { icon: BsBoxSeam, width: 18, height: 18 } },
        },
        NavItem {
            label: "Issues",
            route: Route::IssuesPage {},
            icon: rsx! { Icon { icon: BsListTask, width: 18, height: 18 } },
        },
        NavItem {
            label: "Code Graph",
            route: Route::GraphIndexPage {},
            icon: rsx! { Icon { icon: BsDiagram3, width: 18, height: 18 } },
        },
        NavItem {
            label: "AI Chat",
            route: Route::ChatIndexPage {},
            icon: rsx! { Icon { icon: BsChatDots, width: 18, height: 18 } },
        },
        NavItem {
            label: "DAST",
            route: Route::DastOverviewPage {},
            icon: rsx! { Icon { icon: BsBug, width: 18, height: 18 } },
        },
        NavItem {
            label: "MCP Servers",
            route: Route::McpServersPage {},
            icon: rsx! { Icon { icon: BsPlug, width: 18, height: 18 } },
        },
        NavItem {
            label: "Settings",
            route: Route::SettingsPage {},
            icon: rsx! { Icon { icon: BsGear, width: 18, height: 18 } },
        },
    ];

    let docs_url = option_env!("DOCS_URL").unwrap_or("/docs");

    let sidebar_class = if collapsed() {
        "sidebar collapsed"
    } else {
        "sidebar"
    };

    rsx! {
        nav { class: "{sidebar_class}",
            div { class: "sidebar-header",
                Icon { icon: BsShieldCheck, width: 24, height: 24 }
                if !collapsed() {
                    h1 { "Compliance Scanner" }
                }
            }
            div { class: "sidebar-nav",
                for item in nav_items {
                    {
                        let is_active = match (&current_route, &item.route) {
                            (Route::FindingDetailPage { .. }, Route::FindingsPage {}) => true,
                            (Route::GraphIndexPage {}, Route::GraphIndexPage {}) => true,
                            (Route::GraphExplorerPage { .. }, Route::GraphIndexPage {}) => true,
                            (Route::ImpactAnalysisPage { .. }, Route::GraphIndexPage {}) => true,
                            (Route::ChatPage { .. }, Route::ChatIndexPage {}) => true,
                            (Route::DastTargetsPage {}, Route::DastOverviewPage {}) => true,
                            (Route::DastFindingsPage {}, Route::DastOverviewPage {}) => true,
                            (Route::DastFindingDetailPage { .. }, Route::DastOverviewPage {}) => true,
                            (a, b) => a == b,
                        };
                        let class = if is_active { "nav-item active" } else { "nav-item" };
                        rsx! {
                            Link {
                                to: item.route.clone(),
                                class: class,
                                {item.icon}
                                if !collapsed() {
                                    span { "{item.label}" }
                                }
                            }
                        }
                    }
                }
            }
            a {
                href: "{docs_url}",
                target: "_blank",
                class: "nav-item",
                Icon { icon: BsBook, width: 18, height: 18 }
                if !collapsed() {
                    span { "Docs" }
                }
            }
            button {
                class: "sidebar-toggle",
                onclick: move |_| collapsed.set(!collapsed()),
                if collapsed() {
                    Icon { icon: BsChevronRight, width: 14, height: 14 }
                } else {
                    Icon { icon: BsChevronLeft, width: 14, height: 14 }
                }
            }
            {
                let auth_info = use_context::<Signal<AuthInfo>>();
                let info = auth_info();
                let initials = info.name.chars().next().unwrap_or('U').to_uppercase().to_string();
                let user_class = if collapsed() { "sidebar-user sidebar-user-collapsed" } else { "sidebar-user" };
                rsx! {
                    div { class: "{user_class}",
                        div { class: "user-avatar",
                            if info.avatar_url.is_empty() {
                                span { class: "avatar-initials", "{initials}" }
                            } else {
                                img { src: "{info.avatar_url}", alt: "avatar", class: "avatar-img" }
                            }
                        }
                        if !collapsed() {
                            span { class: "user-name", "{info.name}" }
                        }
                        a {
                            href: "/logout",
                            class: if collapsed() { "logout-btn logout-btn-collapsed" } else { "logout-btn" },
                            title: "Sign out",
                            Icon { icon: BsBoxArrowRight, width: 16, height: 16 }
                        }
                    }
                }
            }
        }
    }
}