import { FC, ReactNode, useState } from "react";
import { useRouter } from "next/router";
import { PanelRightOpen, Square, SquareCode, MoveRight, MoveDiagonal, Bell, Link2, Trash2 } from "lucide-react";
import { observer } from "mobx-react-lite";
import useSWR from "swr";
// components
import { PeekOverviewIssueDetails } from "./issue-detail";
import { PeekOverviewProperties } from "./properties";
import { IssueComment } from "./activity";
import { Button, CustomSelect, FullScreenPeekIcon, ModalPeekIcon, SidePeekIcon } from "@plane/ui";
import { DeleteIssueModal } from "../delete-issue-modal";
// types
import { IIssue } from "types";
import { RootStore } from "store/root";
// hooks
import { useMobxStore } from "lib/mobx/store-provider";
import useToast from "hooks/use-toast";
// helpers
import { copyUrlToClipboard } from "helpers/string.helper";

interface IIssueView {
  workspaceSlug: string;
  projectId: string;
  issueId: string;
  issueUpdate: (issue: Partial<IIssue>) => void;
  issueReactionCreate: (reaction: string) => void;
  issueReactionRemove: (reaction: string) => void;
  issueCommentCreate: (comment: any) => void;
  issueCommentUpdate: (comment: any) => void;
  issueCommentRemove: (commentId: string) => void;
  issueCommentReactionCreate: (commentId: string, reaction: string) => void;
  issueCommentReactionRemove: (commentId: string, reaction: string) => void;
  issueSubscriptionCreate: () => void;
  issueSubscriptionRemove: () => void;
  handleDeleteIssue: () => Promise<void>;
  children: ReactNode;
}

type TPeekModes = "side-peek" | "modal" | "full-screen";

const peekOptions: { key: TPeekModes; icon: any; title: string }[] = [
  {
    key: "side-peek",
    icon: SidePeekIcon,
    title: "Side Peek",
  },
  {
    key: "modal",
    icon: ModalPeekIcon,
    title: "Modal",
  },
  {
    key: "full-screen",
    icon: FullScreenPeekIcon,
    title: "Full Screen",
  },
];

export const IssueView: FC<IIssueView> = observer((props) => {
  const {
    workspaceSlug,
    projectId,
    issueId,
    issueUpdate,
    issueReactionCreate,
    issueReactionRemove,
    issueCommentCreate,
    issueCommentUpdate,
    issueCommentRemove,
    issueCommentReactionCreate,
    issueCommentReactionRemove,
    issueSubscriptionCreate,
    issueSubscriptionRemove,
    handleDeleteIssue,
    children,
  } = props;

  const router = useRouter();
  const { peekIssueId } = router.query as { peekIssueId: string };

  const { user: userStore, issueDetail: issueDetailStore }: RootStore = useMobxStore();

  const [peekMode, setPeekMode] = useState<TPeekModes>("side-peek");
  const [deleteIssueModal, setDeleteIssueModal] = useState(false);

  const { setToastAlert } = useToast();

  const handleCopyText = (e: React.MouseEvent<HTMLButtonElement>) => {
    e.stopPropagation();
    e.preventDefault();
    copyUrlToClipboard(`${workspaceSlug}/projects/${projectId}/issues/${peekIssueId}`).then(() => {
      setToastAlert({
        type: "success",
        title: "Link Copied!",
        message: "Issue link copied to clipboard.",
      });
    });
  };

  const updateRoutePeekId = () => {
    if (issueId != peekIssueId) {
      const { query } = router;
      router.push({
        pathname: router.pathname,
        query: { ...query, peekIssueId: issueId },
      });
    }
  };
  const removeRoutePeekId = () => {
    const { query } = router;
    if (query.peekIssueId) {
      delete query.peekIssueId;
      router.push({
        pathname: router.pathname,
        query: { ...query },
      });
    }
  };

  const redirectToIssueDetail = () => {
    router.push({
      pathname: `/${workspaceSlug}/projects/${projectId}/issues/${issueId}`,
    });
  };

  useSWR(
    workspaceSlug && projectId && issueId && peekIssueId && issueId === peekIssueId
      ? `ISSUE_PEEK_OVERVIEW_${workspaceSlug}_${projectId}_${peekIssueId}`
      : null,
    async () => {
      if (workspaceSlug && projectId && issueId && peekIssueId && issueId === peekIssueId) {
        await issueDetailStore.fetchPeekIssueDetails(workspaceSlug, projectId, issueId);
      }
    }
  );

  useSWR(
    workspaceSlug && projectId && issueId && peekIssueId && issueId === peekIssueId
      ? `ISSUE_PEEK_OVERVIEW_SUBSCRIPTION_${workspaceSlug}_${projectId}_${peekIssueId}`
      : null,
    async () => {
      if (workspaceSlug && projectId && issueId && peekIssueId && issueId === peekIssueId) {
        await issueDetailStore.fetchIssueSubscription(workspaceSlug, projectId, issueId);
      }
    }
  );

  const issue = issueDetailStore.getIssue;
  const issueReactions = issueDetailStore.getIssueReactions;
  const issueComments = issueDetailStore.getIssueComments;
  const issueSubscription = issueDetailStore.getIssueSubscription;

  const user = userStore?.currentUser;

  const currentMode = peekOptions.find((m) => m.key === peekMode);

  return (
    <>
      {issue && (
        <DeleteIssueModal
          isOpen={deleteIssueModal}
          handleClose={() => setDeleteIssueModal(false)}
          data={issue}
          onSubmit={handleDeleteIssue}
        />
      )}
      <div className="w-full !text-base">
        <div onClick={updateRoutePeekId} className="w-full cursor-pointer">
          {children}
        </div>

        {issueId === peekIssueId && (
          <div
            className={`fixed z-20 overflow-hidden bg-custom-background-100 flex flex-col transition-all duration-300 border border-custom-border-200 rounded 
          ${peekMode === "side-peek" ? `w-full md:w-[50%] top-0 right-0 bottom-0` : ``}
          ${peekMode === "modal" ? `top-[50%] left-[50%] -translate-x-[50%] -translate-y-[50%] w-5/6 h-5/6` : ``}
          ${peekMode === "full-screen" ? `top-0 right-0 bottom-0 left-0 m-4` : ``}
          `}
            style={{
              boxShadow:
                "0px 4px 8px 0px rgba(0, 0, 0, 0.12), 0px 6px 12px 0px rgba(16, 24, 40, 0.12), 0px 1px 16px 0px rgba(16, 24, 40, 0.12)",
            }}
          >
            {/* header */}
            <div className="relative flex items-center justify-between p-5 border-b border-custom-border-200">
              <div className="flex items-center gap-4">
                <button onClick={removeRoutePeekId}>
                  <MoveRight className="h-4 w-4 text-custom-text-400 hover:text-custom-text-200" />
                </button>

                <button onClick={redirectToIssueDetail}>
                  <MoveDiagonal className="h-4 w-4 text-custom-text-400 hover:text-custom-text-200" />
                </button>
                {currentMode && (
                  <div className="flex-shrink-0 flex items-center gap-2">
                    <CustomSelect
                      value={currentMode}
                      onChange={(val: any) => setPeekMode(val)}
                      customButton={
                        <button type="button" className="">
                          <currentMode.icon className="h-4 w-4 text-custom-text-400 hover:text-custom-text-200" />
                        </button>
                      }
                    >
                      {peekOptions.map((mode) => (
                        <CustomSelect.Option key={mode.key} value={mode.key}>
                          <div className="flex items-center gap-1.5">
                            <mode.icon className={`h-4 w-4 flex-shrink-0 -my-1 `} />
                            {mode.title}
                          </div>
                        </CustomSelect.Option>
                      ))}
                    </CustomSelect>
                  </div>
                )}
              </div>

              <div className="flex items-center gap-4">
                <Button
                  size="sm"
                  prependIcon={<Bell className="h-3 w-3" />}
                  variant="outline-primary"
                  onClick={() =>
                    issueSubscription && issueSubscription.subscribed
                      ? issueSubscriptionRemove
                      : issueSubscriptionCreate
                  }
                >
                  {issueSubscription && issueSubscription.subscribed ? "Unsubscribe" : "Subscribe"}
                </Button>
                <button onClick={handleCopyText}>
                  <Link2 className="h-4 w-4 text-custom-text-400 hover:text-custom-text-200 -rotate-45" />
                </button>
                <button onClick={() => setDeleteIssueModal(true)}>
                  <Trash2 className="h-4 w-4 text-custom-text-400 hover:text-custom-text-200" />
                </button>
              </div>
            </div>

            {/* content */}
            <div className="w-full h-full overflow-hidden overflow-y-auto">
              {issueDetailStore?.loader && !issue ? (
                <div className="text-center py-10">Loading...</div>
              ) : (
                issue && (
                  <>
                    {["side-peek", "modal"].includes(peekMode) ? (
                      <div className="flex flex-col gap-3 px-10 py-6">
                        <PeekOverviewIssueDetails
                          workspaceSlug={workspaceSlug}
                          issue={issue}
                          issueUpdate={issueUpdate}
                          issueReactions={issueReactions}
                          user={user}
                          issueReactionCreate={issueReactionCreate}
                          issueReactionRemove={issueReactionRemove}
                        />

                        <PeekOverviewProperties issue={issue} issueUpdate={issueUpdate} user={user} />

                        <IssueComment
                          workspaceSlug={workspaceSlug}
                          projectId={projectId}
                          issueId={issueId}
                          user={user}
                          issueComments={issueComments}
                          issueCommentCreate={issueCommentCreate}
                          issueCommentUpdate={issueCommentUpdate}
                          issueCommentRemove={issueCommentRemove}
                          issueCommentReactionCreate={issueCommentReactionCreate}
                          issueCommentReactionRemove={issueCommentReactionRemove}
                        />
                      </div>
                    ) : (
                      <div className="w-full h-full flex">
                        <div className="w-full h-full space-y-6 p-4 py-5">
                          <PeekOverviewIssueDetails
                            workspaceSlug={workspaceSlug}
                            issue={issue}
                            issueReactions={issueReactions}
                            issueUpdate={issueUpdate}
                            user={user}
                            issueReactionCreate={issueReactionCreate}
                            issueReactionRemove={issueReactionRemove}
                          />

                          <div className="border-t border-custom-border-400" />

                          <IssueComment
                            workspaceSlug={workspaceSlug}
                            projectId={projectId}
                            issueId={issueId}
                            user={user}
                            issueComments={issueComments}
                            issueCommentCreate={issueCommentCreate}
                            issueCommentUpdate={issueCommentUpdate}
                            issueCommentRemove={issueCommentRemove}
                            issueCommentReactionCreate={issueCommentReactionCreate}
                            issueCommentReactionRemove={issueCommentReactionRemove}
                          />
                        </div>
                        <div className="flex-shrink-0 !w-[400px] h-full border-l border-custom-border-200 p-4 py-5">
                          <PeekOverviewProperties issue={issue} issueUpdate={issueUpdate} user={user} />
                        </div>
                      </div>
                    )}
                  </>
                )
              )}
            </div>
          </div>
        )}
      </div>
    </>
  );
});