(ns frontend.components.header
  (:require [rum.core :as rum]
            [reitit.frontend.easy :as rfe]
            [clojure.string :as string]
            [frontend.db :as db]
            [frontend.ui :as ui]
            [frontend.util :as util]
            [frontend.state :as state]
            [frontend.storage :as storage]
            [frontend.config :as config]
            [frontend.context.i18n :as i18n]
            [frontend.handler.user :as user-handler]
            [frontend.handler.export :as export]
            [frontend.components.svg :as svg]
            [frontend.components.repo :as repo]
            [frontend.components.search :as search]
            [frontend.handler.project :as project-handler]
            [frontend.handler.web.nfs :as nfs]
            [goog.dom :as gdom]
            [goog.object :as gobj]))

(rum/defc logo < rum/reactive
  [{:keys [white?]}]
  [:a.cp__header-logo
   {:href "/"
    :on-click (fn []
                (util/scroll-to-top)
                (state/set-journals-length! 1))}
   (if-let [logo (and config/publishing?
                      (get-in (state/get-config) [:project :logo]))]
     [:img.cp__header-logo-img {:src logo}]
     (svg/logo (not white?)))])

(rum/defc left-menu-button < rum/reactive
  [{:keys [on-click]}]
  [:button#left-menu.cp__header-left-menu
   {:on-click on-click}
   [:svg.h-6.w-6
    {:viewBox "0 0 24 24", :fill "none", :stroke "currentColor"}
    [:path
     {:d "M4 6h16M4 12h16M4 18h7"
      :stroke-width "2"
      :stroke-linejoin "round"
      :stroke-linecap "round"}]]])

(rum/defc dropdown-menu < rum/reactive
  [{:keys [me current-repo t default-home]}]
  (let [projects (state/sub [:me :projects])]
    (ui/dropdown-with-links
     (fn [{:keys [toggle-fn]}]
       [:button.max-w-xs.flex.items-center.text-sm.rounded-full.focus:outline-none.focus:shadow-outline.h-7.w-7.ml-2
        {:on-click toggle-fn}
        (if-let [avatar (:avatar me)]
          [:img#avatar.h-7.w-7.rounded-full
           {:src avatar
            :on-error (fn [this]
                        (let [elem (gdom/getElement "avatar")]
                          (gobj/set elem "src" (config/asset-uri "/static/img/broken-avatar.png"))))}]
          [:div.h-7.w-7.rounded-full.bg-base-2.opacity-70.hover:opacity-100 {:style {:padding 1.5}}
           [:a svg/user]])])
     (let [logged? (:name me)]
       (->>
        [(when current-repo
           {:title (t :graph)
            :options {:href (rfe/href :graph)}
            :icon svg/graph-sm})

         (when (or logged? (and (nfs/supported?) current-repo))
           {:title (t :all-graphs)
            :options {:href (rfe/href :repos)}
            :icon svg/repos-sm})

         (when current-repo
           {:title (t :all-pages)
            :options {:href (rfe/href :all-pages)}
            :icon svg/pages-sm})

         (when current-repo
           {:title (t :all-files)
            :options {:href (rfe/href :all-files)}
            :icon svg/folder-sm})

         (when (and default-home current-repo)
           {:title (t :all-journals)
            :options {:href (rfe/href :all-journals)}
            :icon svg/calendar-sm})

         (when (project-handler/get-current-project current-repo projects)
           {:title (t :my-publishing)
            :options {:href (rfe/href :my-publishing)}})

         (when-let [project (and current-repo
                                 (project-handler/get-current-project current-repo projects))]
           (let [link (str config/website "/" project)]
             {:title (str (t :go-to) "/" project)
              :options {:href link
                        :target "_blank"}
              :icon svg/external-link}))

         {:title (t :settings)
          :options {:href (rfe/href :settings)}
          :icon svg/settings-sm}

         (when (and logged? current-repo)
           {:title (t :export)
            :options {:on-click (fn []
                                  (export/export-repo-as-html! current-repo))}
            :icon nil})
         (when current-repo
           {:title (t :import)
            :options {:href (rfe/href :import)}
            :icon svg/import-sm})
         {:title [:div.flex-row.flex.justify-between.items-center
                  [:span (t :join-community)]]
          :options {:href "https://discord.gg/KpN4eHY"
                    :title (t :discord-title)
                    :target "_blank"}
          :icon svg/discord}
         {:title [:div.flex-row.flex.justify-between.items-center
                  [:span (t :sponsor-us)]]
          :options {:href "https://opencollective.com/logseq"
                    :target "_blank"}}
         (when logged?
           {:title (t :sign-out)
            :options {:on-click user-handler/sign-out!}
            :icon svg/logout-sm})]
        (remove nil?)))
     {})))

(rum/defc right-menu-button < rum/reactive
  []
  [:a.cp__right-menu-button
   {:on-click state/toggle-sidebar-open?!}
   (svg/menu)])

(rum/defc header
  < rum/reactive
  [{:keys [open-fn current-repo white? logged? page? route-match me default-home new-block-mode]}]
  (let [local-repo? (= current-repo config/local-repo)
        repos (->> (state/sub [:me :repos])
                   (remove #(= (:url %) config/local-repo)))]
    (rum/with-context [[t] i18n/*tongue-context*]
      [:div.cp__header#head
       (left-menu-button {:on-click (fn []
                                      (open-fn)
                                      (state/set-left-sidebar-open! true))})

       (logo {:white? white?})

       (if current-repo
         (search/search)
         [:div.flex-1])

       (new-block-mode)

       (when (and (not logged?)
                  (not config/publishing?))

         (ui/dropdown-with-links
          (fn [{:keys [toggle-fn]}]
            [:a {:on-click toggle-fn}
             [:span.ml-1.text-sm (t :login)]])
          (let [list [{:title (t :login-google)
                       :url "/login/google"}
                      {:title (t :login-github)
                       :url "/login/github"}]]
            (mapv
             (fn [{:keys [title url]}]
               {:title title
                :options
                {:on-click
                 (fn [_] (set! (.-href js/window.location) url))}})
             list))))

       (repo/sync-status)

       [:div.repos.hidden.md:block
        (repo/repos-dropdown true)]

       (when (and (nfs/supported?) (empty? repos))
         [:a.text-sm.font-medium.opacity-70.hover:opacity-100.ml-3.block
          {:on-click (fn []
                       (nfs/ls-dir-files))}
          [:div.flex.flex-row.text-center
           [:span.inline-block svg/folder-add]
           (when-not config/mobile?
             [:span.ml-1 {:style {:margin-top 2}}
              (t :open)])]])

       (if config/publishing?
         [:a.text-sm.font-medium.ml-3 {:href (rfe/href :graph)}
          (t :graph)]

         (dropdown-menu {:me me
                         :t t
                         :current-repo current-repo
                         :default-home default-home}))

       [:a#download-as-html.hidden]
       [:a#download-as-zip.hidden]

       (right-menu-button)])))