import { usePage } from "@inertiajs/react";
import { CheckIcon, ChevronsUpDownIcon, SearchIcon, XIcon } from "lucide-react";
import { useState } from "react";

import BtnOptionnalLinkWithTooltip from "@/back/Components/BtnOptionnalLinkWithTooltip";
import InputError from "@/back/Components/InputError";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import {
  Popover,
  PopoverContent,
  PopoverTrigger,
} from "@/components/ui/popover";
import str from "@/hooks/use-string";
import trans from "@/hooks/use-translations";
import { cn } from "@/lib/utils";

interface EnumSelectProps {
  name: string;
  label: string;
  options?: Record<
    string,
    { label: string; name: string; value: number | string }
  >;
  placeholder?: string;
  exclude?: (number | string)[];
  selected?: number | string | null;
  required?: boolean;
  disabled?: boolean;
  parentErrors?: Record<string, string> | null;
  setData: (name: string, value: number | string | null) => void;
  onSelectValue?: (value: number | string | null) => void;
}

export default function EnumSelect({
  name,
  label,
  options = {},
  placeholder = "ex: John Doe",
  exclude = [],
  selected = null,
  required = true,
  disabled = false,
  parentErrors = null,
  setData,
  onSelectValue,
}: Readonly<EnumSelectProps>) {
  const { locale } = usePage().props.appEnv as AppEnv;
  const { errors } = usePage().props;
  const localErrors = { ...errors, ...parentErrors };

  // Model key selected.
  const initial =
    selected && selected !== 0 && selected !== "" ? selected : null;
  const [selectedEnum, setSelectedEnum] = useState<number | string | null>(
    initial,
  );

  // String research in models collection.
  const [search, setSearch] = useState<string>("");

  // List of options.
  const initalOptions = Object.fromEntries(
    Object.entries(options).filter(([, item]) => !exclude.includes(item.value)),
  );
  const currentOptions =
    search.length === 0
      ? initalOptions
      : Object.fromEntries(
          Object.entries(initalOptions).filter(([, item]) =>
            item.label.toLowerCase().includes(search),
          ),
        );

  // Component states.
  const [open, setOpen] = useState<boolean>(false);

  const transNoResults = trans("uwil-backend::back.table_no_results");
  const transDelete = trans("uwil-backend::crud.actions.delete");

  /**
   * Get the identification field of specific option.
   * @param value number | string
   * @return string
   */
  const getEnumLabel = (value: number | string): string => {
    const targetEnum = Object.values(initalOptions).find(
      (option) => option.value === value,
    );
    if (!targetEnum) return String(value);
    if (typeof value === "object")
      return String(
        targetEnum.label[locale as keyof typeof targetEnum.label] ?? "",
      );
    return targetEnum.label;
  };

  /**
   * Updates when selecting new value.
   * @param value number | string
   * @return void
   */
  const handleSelect = (value: number | string) => {
    setSelectedEnum(value);
    setData(name, value);
    onSelectValue?.(value);
    setOpen(false);
  };

  /**
   * Updates when clear the selected value.
   * @return void
   */
  const handleClear = () => {
    setSelectedEnum(null);
    setData(name, null);
    onSelectValue?.(null);
  };

  /**
   * Reset the search.
   * @return void
   */
  const handleClearSearch = () => {
    setSearch("");
  };

  return (
    <div className="flex flex-col w-full gap-1.5">
      <Label htmlFor={name} className="font-bold flex items-center gap-1.5">
        {label}
        {required && " *"}
      </Label>
      <div className="flex items-center gap-1.5 w-full">
        <Popover open={open} onOpenChange={setOpen}>
          <PopoverTrigger asChild>
            <Button
              variant="outline"
              role="combobox"
              aria-expanded={open}
              disabled={disabled}
              className={cn(
                "w-full h-10 justify-between whitespace-normal text-start",
                { "text-muted-foreground": !selectedEnum },
                { "border-destructive/50": localErrors[name] },
              )}
            >
              {selectedEnum
                ? str(getEnumLabel(selectedEnum)).ucFirst().value()
                : placeholder}
              <ChevronsUpDownIcon className="opacity-50" />
            </Button>
          </PopoverTrigger>
          <PopoverContent className="w-[var(--radix-popover-trigger-width)] p-0">
            <div className="relative">
              <div className="absolute top-1/2 left-2 transform -translate-y-1/2 text-muted-foreground">
                <SearchIcon className="w-4 h-4" />
              </div>
              <Input
                type="text"
                placeholder={placeholder}
                value={search}
                disabled={disabled}
                onChange={(e) => {
                  setSearch(e.target.value);
                }}
                className="w-[calc(100%-2.5rem-40px)] border-0 mx-9"
              />
              <BtnOptionnalLinkWithTooltip
                content={<XIcon />}
                tooltipContent={
                  <p>
                    {str(trans("uwil-backend::crud.actions.delete"))
                      .ucFirst()
                      .value()}
                  </p>
                }
                type="button"
                variant="ghost"
                size="icon"
                className="absolute top-1/2 right-0 transform -translate-y-1/2 text-muted-foreground"
                onClick={handleClearSearch}
                disabled={search.length < 1 || disabled}
              />
            </div>
            <div
              className={cn(
                `overflow-auto border-t flex flex-col justify-between p-1 gap-1 ${Object.values(initalOptions).length > 5 ? "h-[225px]" : "h-auto"}`,
              )}
            >
              {Object.values(currentOptions).length === 0 && (
                <p className="text-sm text-muted-foreground text-center py-5">
                  {transNoResults}
                </p>
              )}
              <div className="flex flex-col justify-between">
                {Object.values(currentOptions).map((option) => (
                  <Button
                    key={option.value}
                    className="w-full h-auto min-h-10 justify-between whitespace-normal text-start font-normal"
                    variant="ghost"
                    disabled={disabled}
                    onClick={() => {
                      handleSelect(option.value);
                    }}
                  >
                    <span>{str(option.label).ucFirst().value()}</span>
                    {selectedEnum === option.value && <CheckIcon />}
                  </Button>
                ))}
              </div>
            </div>
          </PopoverContent>
        </Popover>
        {!required && selectedEnum !== null && (
          <BtnOptionnalLinkWithTooltip
            content={<XIcon />}
            tooltipContent={<p>{str(transDelete).ucFirst().value()}</p>}
            type="button"
            variant="destructive"
            size="icon"
            onClick={handleClear}
          />
        )}
      </div>
      <InputError message={localErrors[name]} />
    </div>
  );
}