import * as React from "react";
import * as SVG from "~/common/svg";
import * as Events from "~/common/custom-events";
import * as Constants from "~/common/constants";
import * as Styles from "~/common/styles";

import { css } from "@emotion/react";
import { TabGroup, PrimaryTabGroup, SecondaryTabGroup } from "~/components/core/TabGroup";
import { ButtonSecondary } from "~/components/system/components/Buttons";
import { FileTypeGroup } from "~/components/core/FileTypeIcon";
import { Link } from "~/components/core/Link";

import ScenePage from "~/components/core/ScenePage";
import ScenePageHeader from "~/components/core/ScenePageHeader";
import CollectionPreviewBlock from "~/components/core/CollectionPreviewBlock";
import SquareButtonGray from "~/components/core/SquareButtonGray";
import EmptyState from "~/components/core/EmptyState";
import WebsitePrototypeWrapper from "~/components/core/WebsitePrototypeWrapper";

// TODO(jim): Slates design.
export default class SceneSlates extends React.Component {
  _handleAdd = () => {
    this.props.onAction({
      name: "Create slate",
      type: "SIDEBAR",
      value: "SIDEBAR_CREATE_SLATE",
    });
  };

  _handleSearch = () => {
    Events.dispatchCustomEvent({
      name: "show-search",
      detail: {},
    });
  };

  render() {
    const tab = this.props.page.params?.tab || "collections";
    let subscriptions = this.props.viewer.subscriptions;

    return (
      <WebsitePrototypeWrapper
        title={`${this.props.page.pageTitle} • Slate`}
        url={`${Constants.hostname}${this.props.page.pathname}`}
      >
        <ScenePage>
          <div>
            <div style={{ display: "flex", alignItems: "center", marginBottom: 24 }}>
              <SecondaryTabGroup
                tabs={[
                  { title: "My Collections", value: { tab: "collections" } },
                  { title: "Subscribed", value: { tab: "subscribed" } },
                ]}
                value={tab}
                onAction={this.props.onAction}
                style={{ margin: 0 }}
              />
              <SquareButtonGray onClick={this._handleAdd} style={{ marginLeft: 16 }}>
                <SVG.Plus height="16px" />
              </SquareButtonGray>
            </div>
            {tab === "collections" ? (
              this.props.viewer.slates?.length ? (
                <div css={Styles.COLLECTIONS_PREVIEW_GRID}>
                  {this.props.viewer.slates.map((slate) => (
                    <Link
                      key={slate.id}
                      href={`/$/slate/${slate.id}`}
                      onAction={this.props.onAction}
                    >
                      <CollectionPreviewBlock
                        key={slate.id}
                        collection={slate}
                        viewer={this.props.viewer}
                        owner={this.props.viewer}
                        onAction={this.props.onAction}
                      />
                    </Link>
                  ))}
                </div>
              ) : (
                <div css={Styles.PAGE_EMPTY_STATE_WRAPPER}>
                  <EmptyState>
                    <FileTypeGroup />
                    <div style={{ marginTop: 24 }}>
                      Use collections to create mood boards, share files, and organize research.
                    </div>
                    <ButtonSecondary onClick={this._handleAdd} style={{ marginTop: 32 }}>
                      Create collection
                    </ButtonSecondary>
                  </EmptyState>
                </div>
              )
            ) : null}

            {tab === "subscribed" ? (
              subscriptions && subscriptions.length ? (
                <div css={Styles.COLLECTIONS_PREVIEW_GRID}>
                  {subscriptions.map((slate) => (
                    <Link
                      key={slate.id}
                      href={`/$/slate/${slate.id}`}
                      onAction={this.props.onAction}
                    >
                      <CollectionPreviewBlock
                        key={slate.id}
                        collection={slate}
                        owner={slate.owner}
                        viewer={this.props.viewer}
                        onAction={this.props.onAction}
                      />
                    </Link>
                  ))}
                </div>
              ) : (
                <EmptyState>
                  You can follow any public collections on the network.
                  <ButtonSecondary onClick={this._handleSearch} style={{ marginTop: 32 }}>
                    Browse collections
                  </ButtonSecondary>
                </EmptyState>
              )
            ) : null}
          </div>
        </ScenePage>
      </WebsitePrototypeWrapper>
    );
  }
}