"use client";

import Link from "next/link";

import { IssueAttackPath } from "@/components/issues/issue-attack-path";
import { IssueTriage } from "@/components/issues/issue-triage";
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/shadcn";
import { Badge } from "@/components/shadcn/badge/badge";
import { Button } from "@/components/shadcn/button/button";
import { EntityInfo } from "@/components/shadcn/entities";
import { InfoField } from "@/components/shadcn/info-field/info-field";
import { SeverityBadge } from "@/components/shadcn/table/severity-badge";
import { DetailSidePanel } from "@/components/side-panel/detail-side-panel";
import {
  LEG_LABELS,
  LEG_QUESTIONS,
  LEG_STATE_LABELS,
  legBadgeVariant,
  VERDICTS,
} from "@/lib/issues/verdicts";
import {
  ATTACKER_START_LABEL,
  ISSUE_OUTCOME_LABEL,
  IssueResource,
  LegName,
} from "@/types/issues";

interface IssuePanelProps {
  issue: IssueResource;
  open: boolean;
  onOpenChange: (open: boolean) => void;
}

/**
 * The verdict and the reasoning behind it, from the list row alone (no
 * fetch). Graph, resources, findings and compliance stay on the issue page.
 */
export const IssuePanel = ({ issue, open, onOpenChange }: IssuePanelProps) => {
  const { attributes } = issue;
  const verdict = VERDICTS.find((item) => item.id === attributes.verdict);
  const scanId = issue.relationships?.scan?.data?.id;
  const providerId = issue.relationships?.provider?.data?.id;

  return (
    <DetailSidePanel
      open={open}
      onOpenChange={onOpenChange}
      title={attributes.title}
      description="Why this issue got its verdict and how to fix it"
    >
      <div className="flex h-full min-w-0 flex-col gap-4 overflow-hidden">
        <header className="flex flex-col gap-2">
          <div className="flex flex-wrap items-center gap-3">
            <Badge variant={verdict?.variant ?? "tag"}>
              {verdict?.label ?? attributes.verdict}
            </Badge>
            <SeverityBadge severity={attributes.severity} />
          </div>
          <h3 className="text-text-neutral-primary line-clamp-2 text-lg leading-tight font-medium">
            {attributes.title}
          </h3>
          <EntityInfo
            cloudProvider={attributes.cloud}
            entityAlias={attributes.account}
          />
          <p className="text-text-neutral-tertiary text-xs break-all">
            {attributes.findings_count.toLocaleString()}{" "}
            {attributes.findings_count === 1 ? "finding" : "findings"} ·{" "}
            {attributes.pattern}
          </p>
          <Button asChild variant="link" size="link-sm" className="self-start">
            <Link href={`/issues/${issue.id}`}>Open the full path</Link>
          </Button>
        </header>

        <Tabs
          defaultValue="exploitability"
          className="flex min-h-0 w-full flex-1 flex-col"
        >
          <div className="mb-4 shrink-0">
            <TabsList>
              <TabsTrigger value="exploitability">Exploitability</TabsTrigger>
              <TabsTrigger value="attack-path">Attack path</TabsTrigger>
              <TabsTrigger value="remediation">Remediation</TabsTrigger>
              <TabsTrigger value="triage">Triage</TabsTrigger>
            </TabsList>
          </div>

          <div className="minimal-scrollbar min-h-0 flex-1 overflow-y-auto">
            <TabsContent value="exploitability" className="flex flex-col gap-4">
              {attributes.attacker_start && attributes.outcome && (
                <div className="grid grid-cols-2 gap-3">
                  <InfoField label="Starts from">
                    {ATTACKER_START_LABEL[attributes.attacker_start]}
                  </InfoField>
                  <InfoField label="Leads to">
                    {ISSUE_OUTCOME_LABEL[attributes.outcome]}
                  </InfoField>
                </div>
              )}
              <ul
                aria-label="Exploitability assessment"
                className="divide-border-neutral-secondary flex flex-col divide-y"
              >
                {(Object.keys(LEG_LABELS) as LegName[]).map((name) => {
                  const leg = attributes.legs[name];
                  if (!leg) return null;
                  return (
                    <li key={name} className="flex items-start gap-3 py-3">
                      <div className="flex min-w-0 flex-1 flex-col gap-0.5">
                        <span className="text-sm font-medium">
                          {LEG_LABELS[name]}
                        </span>
                        <span className="text-text-neutral-tertiary text-xs">
                          {LEG_QUESTIONS[name]}
                        </span>
                        <span className="text-text-neutral-secondary text-sm">
                          {leg.text}
                        </span>
                      </div>
                      <Badge variant={legBadgeVariant(name, leg.state)}>
                        {LEG_STATE_LABELS[leg.state]}
                      </Badge>
                    </li>
                  );
                })}
              </ul>
            </TabsContent>

            {/* Mounted only while selected, so the graph's requests run when
                someone asks for it. */}
            <TabsContent value="attack-path">
              <IssueAttackPath
                id={issue.id}
                issue={attributes}
                scanId={scanId}
                providerId={providerId}
              />
            </TabsContent>

            <TabsContent value="remediation" className="flex flex-col gap-2">
              <p className="text-text-neutral-secondary text-sm">
                {attributes.fix}
              </p>
              {scanId && (
                <Button
                  asChild
                  variant="link"
                  size="link-sm"
                  className="self-start"
                >
                  <Link
                    href={`/findings?${new URLSearchParams({ "filter[scan__in]": scanId, "filter[status__in]": "FAIL" })}`}
                  >
                    Open this scan&apos;s failed findings
                  </Link>
                </Button>
              )}
            </TabsContent>

            <TabsContent value="triage">
              <IssueTriage
                key={`${issue.id}-${attributes.updated_at}`}
                id={issue.id}
                status={attributes.triage_status}
              />
            </TabsContent>
          </div>
        </Tabs>
      </div>
    </DetailSidePanel>
  );
};