"use client";

import Image from "@/components/ui/resilient-image";
import { CircleHelpIcon } from "lucide-react";
import type { ReactNode } from "react";

import { TeamArtifactIcon } from "@/components/public/team-search";
import {
  ComboboxContent,
  ComboboxEmpty,
  ComboboxInput,
  ComboboxItem,
  ComboboxList,
  ComboboxTrigger,
  FuzzyCombobox,
} from "@/components/ui/combobox";
import { characterRarityGradientClass, rarityGradientClass } from "@/lib/catalog/rarity";
import { cn } from "@/lib/utils";

export interface AdminCatalogItem {
  key: string;
  name: string;
  aliases?: string[];
  imageUrl: string;
  rarity?: number | null;
}

export interface AdminCatalogCharacter extends AdminCatalogItem {
  aliases: string[];
  rarity: number | null;
  element: string | null;
  elementIconUrl?: string | null;
  weaponType: string | null;
  splashImageUrl: string | null;
}

export interface AdminCatalogWeapon extends AdminCatalogItem {
  aliases: string[];
  rarity: number | null;
  weaponType: string | null;
}

export interface AdminCatalogArtifact extends AdminCatalogItem {
  aliases: string[];
  rarity: number | null;
}

type CommonSelectProps<Item extends AdminCatalogItem> = {
  items: Item[];
  placeholder: string;
  emptyLabel?: string;
  invalid?: boolean;
  rarityBackground?: boolean;
  characterBackground?: boolean;
  searchNames?: (item: Item) => string[];
};

type CatalogDropdownProps<Item extends AdminCatalogItem> = CommonSelectProps<Item> & {
  value: string;
  onValueChange: (value: string) => void;
  showSelectedImage?: boolean;
  showClear?: boolean;
  label?: string;
};

export function CatalogDropdown<Item extends AdminCatalogItem>({
  items,
  value,
  onValueChange,
  placeholder,
  emptyLabel = "ไม่พบรายการ",
  invalid = false,
  rarityBackground = false,
  characterBackground = false,
  showSelectedImage = false,
  showClear = true,
  label,
  searchNames = (item) => [item.name, ...(item.aliases ?? [])],
}: CatalogDropdownProps<Item>) {
  const selected = items.find((item) => item.key === value) ?? null;

  return (
    <div className="flex min-w-0 items-center gap-2">
      {showSelectedImage && selected ? (
        <div
          className={cn(
            "relative size-10 shrink-0 overflow-hidden rounded-md",
            rarityBackground && (characterBackground ? characterRarityGradientClass(selected.key, selected.rarity) : rarityGradientClass(selected.rarity)),
          )}
        >
          <Image src={selected.imageUrl} alt="" fill sizes="40px" className="object-contain" />
        </div>
      ) : null}
      <div className="min-w-0 flex-1">
        <FuzzyCombobox
          items={items}
          value={selected}
          onValueChange={(next) => onValueChange(next?.key ?? "")}
          itemToStringLabel={(item) => item.name}
          itemToStringValue={(item) => item.key}
          searchNames={searchNames}
          autoHighlight
        >
          <ComboboxInput
            className="w-full"
            placeholder={placeholder}
            aria-label={label ?? placeholder}
            showClear={showClear}
            aria-invalid={invalid}
          />
          <ComboboxContent className="min-w-72">
            <ComboboxEmpty>{emptyLabel}</ComboboxEmpty>
            <ComboboxList>
              {(item) => (
                <ComboboxItem key={item.key} value={item}>
                  <CatalogOptionImage item={item} rarityBackground={rarityBackground} characterBackground={characterBackground} />
                  <span className="whitespace-nowrap">{item.name}</span>
                </ComboboxItem>
              )}
            </ComboboxList>
          </ComboboxContent>
        </FuzzyCombobox>
      </div>
    </div>
  );
}

type CatalogSlotSelectProps<Item extends AdminCatalogItem> = CommonSelectProps<Item> & {
  value: string;
  onValueChange: (value: string) => void;
  label: string;
  className?: string;
  placeholderIcon?: ReactNode;
};

function CatalogSlotSelect<Item extends AdminCatalogItem>({
  items,
  value,
  onValueChange,
  label,
  placeholder,
  emptyLabel = "ไม่พบรายการ",
  invalid = false,
  rarityBackground = true,
  characterBackground = false,
  searchNames = (item) => [item.name, ...(item.aliases ?? [])],
  className,
  placeholderIcon,
}: CatalogSlotSelectProps<Item>) {
  const selected = items.find((item) => item.key === value) ?? null;

  return (
    <FuzzyCombobox
      items={items}
      value={selected}
      onValueChange={(next) => onValueChange(next?.key ?? "")}
      itemToStringLabel={(item) => item.name}
      itemToStringValue={(item) => item.key}
      searchNames={searchNames}
      autoHighlight
    >
      <ComboboxTrigger
        aria-label={selected ? `${label}: ${selected.name}` : label}
        aria-invalid={invalid}
        className={cn(
          "relative flex aspect-square w-full items-center justify-center overflow-hidden rounded-md border bg-muted p-0 outline-none focus-visible:ring-2 focus-visible:ring-ring aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 [&>svg]:hidden",
          rarityBackground && selected && (characterBackground ? characterRarityGradientClass(selected.key, selected.rarity) : rarityGradientClass(selected.rarity)),
          className,
        )}
      >
        {selected ? (
          <Image src={selected.imageUrl} alt="" fill sizes="96px" className="object-contain p-0.5" />
        ) : (
          <span className="flex size-full items-center justify-center text-muted-foreground">
            {placeholderIcon ?? <CircleHelpIcon className="size-8" aria-hidden="true" />}
          </span>
        )}
      </ComboboxTrigger>
      <ComboboxContent className="min-w-72">
        <ComboboxInput placeholder={placeholder} showClear showTrigger={false} />
        <ComboboxEmpty>{emptyLabel}</ComboboxEmpty>
        <ComboboxList>
          {(item) => (
            <ComboboxItem key={item.key} value={item}>
              <CatalogOptionImage item={item} rarityBackground={rarityBackground} characterBackground={characterBackground} />
              <span className="whitespace-nowrap">{item.name}</span>
            </ComboboxItem>
          )}
        </ComboboxList>
      </ComboboxContent>
    </FuzzyCombobox>
  );
}

type DomainSelectProps<Item extends AdminCatalogItem> = CommonSelectProps<Item> & {
  value: string;
  onValueChange: (value: string) => void;
  presentation?: "dropdown" | "slot";
  label?: string;
  className?: string;
  showSelectedImage?: boolean;
  showClear?: boolean;
  placeholderIcon?: ReactNode;
};

function DomainCatalogSelect<Item extends AdminCatalogItem>({
  presentation = "dropdown",
  label,
  className,
  showSelectedImage,
  placeholderIcon,
  rarityBackground = true,
  ...props
}: DomainSelectProps<Item>) {
  if (presentation === "slot") {
    return (
      <CatalogSlotSelect
        {...props}
        rarityBackground={rarityBackground}
        label={label ?? props.placeholder}
        className={className}
        placeholderIcon={placeholderIcon}
      />
    );
  }
  return <CatalogDropdown {...props} label={label} rarityBackground={rarityBackground} showSelectedImage={showSelectedImage} />;
}

export function CharacterSelect<Item extends AdminCatalogItem>(props: DomainSelectProps<Item>) {
  return <DomainCatalogSelect {...props} characterBackground />;
}

export function WeaponSelect<Item extends AdminCatalogItem>(props: DomainSelectProps<Item>) {
  return <DomainCatalogSelect {...props} />;
}

type SingleArtifactSelectProps<Item extends AdminCatalogItem> = DomainSelectProps<Item> & {
  multiple?: false;
};

type MultipleArtifactSelectProps<Item extends AdminCatalogItem> = Omit<
  CommonSelectProps<Item>,
  "rarityBackground"
> & {
  multiple: true;
  values: string[];
  onValuesChange: (values: string[]) => void;
  label: string;
  max?: number;
  className?: string;
};

export function ArtifactSelect<Item extends AdminCatalogItem>(
  props: SingleArtifactSelectProps<Item> | MultipleArtifactSelectProps<Item>,
) {
  if (!props.multiple) return <DomainCatalogSelect {...props} />;

  const {
    items,
    values,
    onValuesChange,
    label,
    placeholder,
    emptyLabel = "ไม่พบชุด Artifact",
    invalid = false,
    max = 2,
    searchNames = (item) => [item.name, ...(item.aliases ?? [])],
    className,
  } = props;
  const selected = values.flatMap((value) => {
    const item = items.find((candidate) => candidate.key === value);
    return item ? [item] : [];
  });
  const iconValue = (item: Item | undefined) => item
    ? { key: item.key, name: item.name, imageUrl: item.imageUrl, rarity: item.rarity ?? null }
    : null;

  return (
    <FuzzyCombobox
      multiple
      items={items}
      value={selected}
      onValueChange={(next) => onValuesChange(next.slice(0, max).map((item) => item.key))}
      itemToStringLabel={(item) => item.name}
      itemToStringValue={(item) => item.key}
      isItemEqualToValue={(item, value) => item.key === value.key}
      searchNames={searchNames}
      autoHighlight
    >
      <ComboboxTrigger
        aria-label={selected.length ? `${label}: ${selected.map((item) => item.name).join(", ")}` : label}
        aria-invalid={invalid}
        className={cn(
          "relative aspect-square w-full overflow-hidden rounded-md border bg-muted outline-none focus-visible:ring-2 focus-visible:ring-ring aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 [&>svg]:hidden",
          className,
        )}
      >
        {selected.length ? (
          <TeamArtifactIcon
            first={iconValue(selected[0])}
            second={iconValue(selected[1])}
            className="border-0"
            sizes="96px"
          />
        ) : (
          <CircleHelpIcon className="size-8 text-muted-foreground" aria-hidden="true" />
        )}
      </ComboboxTrigger>
      <ComboboxContent className="min-w-72">
        <ComboboxInput placeholder={placeholder} showClear showTrigger={false} />
        <ComboboxEmpty>{emptyLabel}</ComboboxEmpty>
        <ComboboxList>
          {(item) => (
            <ComboboxItem
              key={item.key}
              value={item}
              disabled={selected.length >= max && !selected.some((candidate) => candidate.key === item.key)}
            >
              <CatalogOptionImage item={item} rarityBackground />
              <span className="whitespace-nowrap">{item.name}</span>
            </ComboboxItem>
          )}
        </ComboboxList>
      </ComboboxContent>
    </FuzzyCombobox>
  );
}

function CatalogOptionImage({
  item,
  rarityBackground,
  characterBackground = false,
}: {
  item: AdminCatalogItem;
  rarityBackground: boolean;
  characterBackground?: boolean;
}) {
  return (
    <div
      className={cn(
        "relative size-8 shrink-0 overflow-hidden rounded-md",
        rarityBackground && (characterBackground ? characterRarityGradientClass(item.key, item.rarity) : rarityGradientClass(item.rarity)),
      )}
    >
      <Image src={item.imageUrl} alt="" fill sizes="32px" className="object-contain" />
    </div>
  );
}