//! Actions sidebar/menubar for profile page.

use crate::Route;
use crate::auth::AuthState;
use crate::components::app_link::{AppLink, AppLinkTarget};
use crate::components::button::{Button, ButtonVariant};
use crate::components::dialog::{DialogContent, DialogDescription, DialogRoot, DialogTitle};
use crate::components::notebook_editor::{NotebookEditor, NotebookEditorMode, NotebookFormState};
use crate::fetch::Fetcher;
use dioxus::prelude::*;
use jacquard::IntoStatic;
use jacquard::client::AgentSessionExt;
use jacquard::types::ident::AtIdentifier;
use jacquard::types::string::Datetime;
use weaver_api::sh_weaver::actor::Author;
use weaver_api::sh_weaver::notebook::book::Book;
use weaver_common::slugify;

const PROFILE_ACTIONS_CSS: Asset = asset!("/assets/styling/profile-actions.css");

/// Build a Book record from form state.
fn build_book_from_form(
    form_state: &NotebookFormState,
    did: &jacquard::types::string::Did<'_>,
    path: String,
) -> Book<'static> {
    let now = Datetime::now();
    let author = Author::new().did(did.clone().into_static()).build();

    let title = form_state.title.clone();

    let tags: Option<Vec<_>> = if form_state.tags.is_empty() {
        None
    } else {
        Some(form_state.tags.iter().map(|s| s.clone().into()).collect())
    };

    Book::new()
        .authors(vec![author])
        .entry_list(vec![])
        .maybe_title(Some(title.into()))
        .maybe_path(Some(path.into()))
        .maybe_publish_global(Some(form_state.publish_global))
        .maybe_tags(tags)
        .created_at(now.clone())
        .updated_at(now)
        .build()
}

/// Actions available on the profile page for the owner.
#[component]
pub fn ProfileActions(ident: ReadSignal<AtIdentifier<'static>>) -> Element {
    let auth_state = use_context::<Signal<AuthState>>();
    let fetcher = use_context::<Fetcher>();
    let navigator = use_navigator();

    // State for the create notebook dialog.
    let mut show_create_dialog = use_signal(|| false);
    let mut saving = use_signal(|| false);
    let mut error = use_signal(|| None::<String>);

    // Check if viewing own profile.
    let is_owner = {
        let current_did = auth_state.read().did.clone();
        match (&current_did, ident()) {
            (Some(did), AtIdentifier::Did(ref ident_did)) => *did == *ident_did,
            _ => false,
        }
    };

    if !is_owner {
        return rsx! {};
    }

    let create_fetcher = fetcher.clone();
    let handle_save = move |form_state: NotebookFormState| {
        let fetcher = create_fetcher.clone();
        let navigator = navigator.clone();
        let ident_value = ident();

        spawn(async move {
            saving.set(true);
            error.set(None);

            let did = match fetcher.current_did().await {
                Some(d) => d,
                None => {
                    error.set(Some("Not authenticated".to_string()));
                    saving.set(false);
                    return;
                }
            };

            let path = if form_state.path.is_empty() {
                slugify(&form_state.title)
            } else {
                form_state.path.clone()
            };

            let book = build_book_from_form(&form_state, &did, path.clone());

            match fetcher.create_record(book, None).await {
                Ok(_output) => {
                    // TODO: If publish_global, create site.standard.publication record (Task 8).
                    show_create_dialog.set(false);
                    saving.set(false);
                    navigator.push(Route::NotebookIndex {
                        ident: ident_value,
                        book_title: path.into(),
                    });
                }
                Err(e) => {
                    error.set(Some(format!("Failed to create notebook: {:?}", e)));
                    saving.set(false);
                }
            }
        });
    };

    let handle_cancel = move |_| {
        show_create_dialog.set(false);
        error.set(None);
    };

    rsx! {
        document::Link { rel: "stylesheet", href: PROFILE_ACTIONS_CSS }

        aside { class: "profile-actions",
            div { class: "profile-actions-container",
                div { class: "profile-actions-list",
                    AppLink {
                        to: AppLinkTarget::NewDraft { ident: ident(), notebook: None },
                        class: "profile-action-link".to_string(),
                        Button {
                            variant: ButtonVariant::Outline,
                            "New Entry"
                        }
                    }

                    Button {
                        variant: ButtonVariant::Outline,
                        onclick: move |_| show_create_dialog.set(true),
                        "New Notebook"
                    }

                    AppLink {
                        to: AppLinkTarget::Drafts { ident: ident() },
                        class: "profile-action-link".to_string(),
                        Button {
                            variant: ButtonVariant::Ghost,
                            "Drafts"
                        }
                    }

                    AppLink {
                        to: AppLinkTarget::Invites { ident: ident() },
                        class: "profile-action-link".to_string(),
                        Button {
                            variant: ButtonVariant::Ghost,
                            "Invites"
                        }
                    }
                }
            }
        }

        // Create notebook dialog.
        DialogRoot {
            open: show_create_dialog(),
            on_open_change: move |open: bool| show_create_dialog.set(open),
            DialogContent {
                DialogTitle { "Create Notebook" }
                DialogDescription {
                    "Create a new notebook to organize your entries."
                }
                NotebookEditor {
                    mode: NotebookEditorMode::Create,
                    on_save: handle_save,
                    on_cancel: handle_cancel,
                    saving: saving(),
                    error: error(),
                }
            }
        }
    }
}


/// Mobile-friendly menubar version of profile actions.
#[component]
pub fn ProfileActionsMenubar(ident: ReadSignal<AtIdentifier<'static>>) -> Element {
    let auth_state = use_context::<Signal<AuthState>>();
    let fetcher = use_context::<Fetcher>();
    let navigator = use_navigator();

    let mut show_create_dialog = use_signal(|| false);
    let mut saving = use_signal(|| false);
    let mut error = use_signal(|| None::<String>);

    let is_owner = {
        let current_did = auth_state.read().did.clone();
        match (&current_did, ident()) {
            (Some(did), AtIdentifier::Did(ref ident_did)) => *did == *ident_did,
            _ => false,
        }
    };

    if !is_owner {
        return rsx! {};
    }

    let create_fetcher = fetcher.clone();
    let handle_save = move |form_state: NotebookFormState| {
        let fetcher = create_fetcher.clone();
        let navigator = navigator.clone();
        let ident_value = ident();

        spawn(async move {
            saving.set(true);
            error.set(None);

            let did = match fetcher.current_did().await {
                Some(d) => d,
                None => {
                    error.set(Some("Not authenticated".to_string()));
                    saving.set(false);
                    return;
                }
            };

            let path = if form_state.path.is_empty() {
                slugify(&form_state.title)
            } else {
                form_state.path.clone()
            };

            let book = build_book_from_form(&form_state, &did, path.clone());

            match fetcher.create_record(book, None).await {
                Ok(_output) => {
                    // TODO: If publish_global, create site.standard.publication record (Task 8).
                    show_create_dialog.set(false);
                    saving.set(false);
                    navigator.push(Route::NotebookIndex {
                        ident: ident_value,
                        book_title: path.into(),
                    });
                }
                Err(e) => {
                    error.set(Some(format!("Failed to create notebook: {:?}", e)));
                    saving.set(false);
                }
            }
        });
    };

    let handle_cancel = move |_| {
        show_create_dialog.set(false);
        error.set(None);
    };

    rsx! {
        div { class: "profile-actions-menubar",
            AppLink {
                to: AppLinkTarget::NewDraft { ident: ident(), notebook: None },
                Button {
                    variant: ButtonVariant::Primary,
                    "New Entry"
                }
            }

            Button {
                variant: ButtonVariant::Outline,
                onclick: move |_| show_create_dialog.set(true),
                "New Notebook"
            }

            AppLink {
                to: AppLinkTarget::Drafts { ident: ident() },
                Button {
                    variant: ButtonVariant::Ghost,
                    "Drafts"
                }
            }

            AppLink {
                to: AppLinkTarget::Invites { ident: ident() },
                Button {
                    variant: ButtonVariant::Ghost,
                    "Invites"
                }
            }
        }

        // Create notebook dialog.
        DialogRoot {
            open: show_create_dialog(),
            on_open_change: move |open: bool| show_create_dialog.set(open),
            DialogContent {
                DialogTitle { "Create Notebook" }
                DialogDescription {
                    "Create a new notebook to organize your entries."
                }
                NotebookEditor {
                    mode: NotebookEditorMode::Create,
                    on_save: handle_save,
                    on_cancel: handle_cancel,
                    saving: saving(),
                    error: error(),
                }
            }
        }
    }
}