import { FC } from "react";
import { observer } from "mobx-react";
import { useRouter } from "next/router";
// types
import type { IIssueDisplayFilterOptions, IIssueDisplayProperties, IIssueFilterOptions } from "@plane/types";
// components
import { ArchiveTabsList } from "@/components/archives";
import { DisplayFiltersSelection, FilterSelection, FiltersDropdown } from "@/components/issues";
// constants
import { EIssueFilterType, EIssuesStoreType, ISSUE_DISPLAY_FILTERS_BY_LAYOUT } from "@/constants/issue";
// helpers
import { calculateTotalFilters } from "@/helpers/filter.helper";
// hooks
import { useIssues, useLabel, useMember, useProject, useProjectState } from "@/hooks/store";

export const ArchivedIssuesHeader: FC = observer(() => {
  // router
  const router = useRouter();
  const { workspaceSlug, projectId } = router.query;
  // store hooks
  const { currentProjectDetails } = useProject();
  const {
    issuesFilter: { issueFilters, updateFilters },
  } = useIssues(EIssuesStoreType.ARCHIVED);
  const { projectStates } = useProjectState();
  const { projectLabels } = useLabel();
  const {
    project: { projectMemberIds },
  } = useMember();
  // for archived issues list layout is the only option
  const activeLayout = "list";
  // hooks
  const handleFiltersUpdate = (key: keyof IIssueFilterOptions, value: string | string[]) => {
    if (!workspaceSlug || !projectId) return;

    const newValues = issueFilters?.filters?.[key] ?? [];

    if (Array.isArray(value)) {
      value.forEach((val) => {
        if (!newValues.includes(val)) newValues.push(val);
      });
    } else {
      if (issueFilters?.filters?.[key]?.includes(value)) newValues.splice(newValues.indexOf(value), 1);
      else newValues.push(value);
    }

    updateFilters(workspaceSlug.toString(), projectId.toString(), EIssueFilterType.FILTERS, {
      [key]: newValues,
    });
  };

  const handleDisplayFiltersUpdate = (updatedDisplayFilter: Partial<IIssueDisplayFilterOptions>) => {
    if (!workspaceSlug || !projectId) return;

    updateFilters(workspaceSlug.toString(), projectId.toString(), EIssueFilterType.DISPLAY_FILTERS, {
      ...issueFilters?.displayFilters,
      ...updatedDisplayFilter,
    });
  };

  const handleDisplayPropertiesUpdate = (property: Partial<IIssueDisplayProperties>) => {
    if (!workspaceSlug || !projectId) return;

    updateFilters(workspaceSlug.toString(), projectId.toString(), EIssueFilterType.DISPLAY_PROPERTIES, property);
  };

  const isFiltersApplied = calculateTotalFilters(issueFilters?.filters ?? {}) !== 0;

  return (
    <div className="group relative flex border-b border-custom-border-200">
      <div className="flex w-full items-center overflow-x-auto px-4 gap-2 horizontal-scrollbar scrollbar-sm">
        <ArchiveTabsList />
      </div>
      {/* filter options */}
      <div className="flex items-center gap-2 px-8">
        <FiltersDropdown title="Filters" placement="bottom-end" isFiltersApplied={isFiltersApplied}>
          <FilterSelection
            filters={issueFilters?.filters || {}}
            handleFiltersUpdate={handleFiltersUpdate}
            layoutDisplayFiltersOptions={
              activeLayout ? ISSUE_DISPLAY_FILTERS_BY_LAYOUT.archived_issues[activeLayout] : undefined
            }
            labels={projectLabels}
            memberIds={projectMemberIds ?? undefined}
            states={projectStates}
          />
        </FiltersDropdown>
        <FiltersDropdown title="Display" placement="bottom-end">
          <DisplayFiltersSelection
            displayFilters={issueFilters?.displayFilters || {}}
            displayProperties={issueFilters?.displayProperties || {}}
            handleDisplayFiltersUpdate={handleDisplayFiltersUpdate}
            handleDisplayPropertiesUpdate={handleDisplayPropertiesUpdate}
            layoutDisplayFiltersOptions={
              activeLayout ? ISSUE_DISPLAY_FILTERS_BY_LAYOUT.issues[activeLayout] : undefined
            }
            cycleViewDisabled={!currentProjectDetails?.cycle_view}
            moduleViewDisabled={!currentProjectDetails?.module_view}
          />
        </FiltersDropdown>
      </div>
    </div>
  );
});