"use client";

import Image from "next/image";
import { DownloadIcon, SearchIcon } from "lucide-react";
import { useMemo, useState } from "react";

import { buttonVariants } from "@/components/ui/button";
import { Card, CardAction, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Kbd } from "@/components/ui/kbd";
import { Separator } from "@/components/ui/separator";
import { elementBackgroundColor } from "@/lib/catalog/element";
import { rarityGradientClass } from "@/lib/catalog/rarity";
import { isCustomTravelerKey } from "@/lib/catalog/travelers";
import type { PublicGuide } from "@/lib/guides/queries";
import { cn } from "@/lib/utils";

export function TeamSearch({ teams }: { teams: PublicGuide["teams"] }) {
  const [query, setQuery] = useState("");
  const normalizedQuery = query.trim().toLocaleLowerCase();
  const filteredTeams = useMemo(
    () => teams.filter((team) => {
      if (!normalizedQuery) return true;
      const searchableNames = [
        team.title,
        ...team.members.flatMap((member) => [
          member.character.name,
          member.weapon?.name,
          member.artifact?.name,
        ]),
      ].filter((name): name is string => Boolean(name));
      return searchableNames.some((name) => name.toLocaleLowerCase().includes(normalizedQuery));
    }),
    [normalizedQuery, teams],
  );

  return (
    <div className="flex flex-col gap-4">
      <div className="relative">
        <SearchIcon aria-hidden="true" className="pointer-events-none absolute top-1/2 left-3 size-4 -translate-y-1/2 text-muted-foreground" />
        <Input
          aria-label="ค้นหาทีม ตัวละคร อาวุธ หรืออาร์ติแฟกต์"
          className="pl-9"
          placeholder="ค้นหาทีม ตัวละคร อาวุธ หรืออาร์ติแฟกต์"
          value={query}
          onValueChange={setQuery}
        />
      </div>
      {filteredTeams.length ? (
        <div className="grid gap-5 xl:grid-cols-2">
          {filteredTeams.map((team) => {
            const total = team.members.reduce(
              (sum, member) => sum + Number(member.damage),
              0,
            );
            const seconds = Number(team.rotationSeconds);
            return (
              <Card key={team.id}>
                <CardHeader>
                  <CardTitle>{team.title}</CardTitle>
                  <CardDescription>ระยะเวลาโรเทชั่น {seconds} วิ</CardDescription>
                  <CardAction>
                    <a
                      href={`/api/teams/${team.id}/image`}
                      download
                      className={buttonVariants({
                        variant: "outline",
                        size: "sm",
                      })}
                    >
                      <DownloadIcon data-icon="inline-start" />
                      ส่งออกภาพ
                    </a>
                  </CardAction>
                </CardHeader>
                <CardContent className="flex flex-col gap-4">
                  <div className="grid grid-cols-4 gap-1 sm:gap-3">
                    {team.members.map((member) => (
                      <div
                        key={member.position}
                        className="min-w-0 rounded-lg p-1 text-center sm:p-2"
                        style={{ backgroundColor: elementBackgroundColor(member.character.element) }}
                      >
                        <div className="grid grid-cols-3 gap-2">
                          <div
                            className={cn(
                              "relative col-span-2 row-span-2 min-h-0 overflow-hidden rounded-lg bg-muted",
                              rarityGradientClass(isCustomTravelerKey(member.character.key) ? 5 : member.character.rarity),
                            )}
                          >
                            <Image
                              src={member.character.imageUrl}
                              alt={member.character.name}
                              fill
                              className="object-contain"
                            />
                            <Kbd className="absolute top-0 left-0 bg-transparent text-white">
                              C{member.constellation}
                            </Kbd>
                          </div>
                          <div className="col-span-1 row-span-2 flex min-w-0 flex-col gap-2">
                            {member.weapon ? (
                              <div
                                className={cn(
                                  "relative aspect-square overflow-hidden rounded-md bg-muted",
                                  rarityGradientClass(member.weapon.rarity),
                                )}
                              >
                                <Image
                                  src={member.weapon.imageUrl}
                                  alt={member.weapon.name}
                                  fill
                                  className="object-contain p-1"
                                />
                                <Kbd className="absolute top-0 left-0 whitespace-nowrap bg-transparent text-white">
                                  R{member.refinement}
                                </Kbd>
                              </div>
                            ) : (
                              <div className="aspect-square rounded-md border bg-muted" />
                            )}
                            {member.artifact ? (
                              <div
                                className={cn(
                                  "relative aspect-square overflow-hidden rounded-md bg-muted",
                                  rarityGradientClass(member.artifact.rarity),
                                )}
                              >
                                <Image
                                  src={member.artifact.imageUrl}
                                  alt={member.artifact.name}
                                  fill
                                  className="object-contain p-1"
                                />
                              </div>
                            ) : (
                              <div className="aspect-square rounded-md border bg-muted" />
                            )}
                          </div>
                        </div>
                        <p className="mt-2 truncate text-sm font-medium">
                          {member.character.name}
                        </p>
                        <p className="text-sm font-semibold">
                          {Number(member.damage).toLocaleString(undefined, {
                            maximumFractionDigits: 2,
                          })}
                        </p>
                        <p className="text-xs text-muted-foreground">
                          {total
                            ? ((Number(member.damage) / total) * 100).toFixed(2)
                            : "0.00"}
                          %
                        </p>
                      </div>
                    ))}
                  </div>
                  <Separator />
                  <div className="flex items-end justify-between">
                    <div>
                      <p className="text-sm text-muted-foreground">
                        ดาเมจรวม
                      </p>
                      <p className="font-semibold">{total.toLocaleString()}</p>
                    </div>
                    <div className="text-right">
                      <p className="text-sm text-muted-foreground">DPS</p>
                      <p className="text-3xl font-semibold text-primary">
                        {seconds > 0
                          ? (total / seconds).toLocaleString(undefined, {
                              maximumFractionDigits: 0,
                            })
                          : "0"}
                      </p>
                    </div>
                  </div>
                  <p className="rounded-lg bg-muted p-3 text-sm leading-6">
                    {team.combo}
                  </p>
                </CardContent>
              </Card>
            );
          })}
        </div>
      ) : (
        <Card>
          <CardContent className="py-8 text-center text-sm text-muted-foreground">
            ไม่พบทีมที่ตรงกับคำค้นหา
          </CardContent>
        </Card>
      )}
    </div>
  );
}