"use client";

import { useState } from "react";
import { CalendarIcon } from "lucide-react";
import { format } from "date-fns";
import { useMutation, useQueryClient } from "@tanstack/react-query";
import { Button } from "@/components/ui/button";
import { Calendar } from "@/components/ui/calendar";
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogFooter,
  DialogHeader,
  DialogTitle,
  DialogTrigger,
} from "@/components/ui/dialog";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import {
  Popover,
  PopoverContent,
  PopoverTrigger,
} from "@/components/ui/popover";
import {
  Select,
  SelectContent,
  SelectGroup,
  SelectItem,
  SelectLabel,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import { cn } from "@/lib/utils";
import { createInventoryItem } from "@/api/inventory";
import type {
  CreateInventoryItemInput,
  InventoryStatus,
  InventoryItemCategory,
  HarvestUnits,
} from "@/types";

interface AddInventoryItemProps {
  inventoryCategory: InventoryItemCategory[];
  inventoryStatus: InventoryStatus[];
  harvestUnits: HarvestUnits[];
}

export function AddInventoryItem({
  inventoryCategory,
  inventoryStatus,
  harvestUnits,
}: AddInventoryItemProps) {
  const [date, setDate] = useState<Date | undefined>();
  const [open, setOpen] = useState(false);
  const [itemName, setItemName] = useState("");
  const [itemCategory, setItemCategory] = useState("");
  const [itemQuantity, setItemQuantity] = useState(0);
  const [itemUnit, setItemUnit] = useState("");
  const [itemStatus, setItemStatus] = useState("");
  const [isSubmitted, setIsSubmitted] = useState(false);
  const [successMessage, setSuccessMessage] = useState("");
  const [errorMessage, setErrorMessage] = useState("");
  const queryClient = useQueryClient();
  const mutation = useMutation({
    mutationFn: (item: CreateInventoryItemInput) => createInventoryItem(item),
    onSuccess: () => {
      // invalidate queries to refresh inventory data
      queryClient.invalidateQueries({ queryKey: ["inventoryItems"] });

      setItemName("");
      setItemCategory("");
      setItemQuantity(0);
      setItemUnit("");
      setDate(undefined);
      setIsSubmitted(true);
      setSuccessMessage("Item created successfully!");

      // reset success message after 3 seconds
      setTimeout(() => {
        setIsSubmitted(false);
        setSuccessMessage("");
        setOpen(false);
      }, 3000);
    },
    onError: (error: any) => {
      console.error("Error creating item: ", error);
      setErrorMessage(
        "There was an error creating the item. Please try again."
      );

      // reset success message after 3 seconds
      setTimeout(() => {
        setErrorMessage("");
      }, 3000);
    },
  });
  const inputStates = [itemName, itemCategory, itemUnit, itemStatus, date];
  const isInputValid = inputStates.every((input) => input);

  const handleSave = () => {
    if (!isInputValid) {
      setErrorMessage(
        "There was an error creating the item. Please try again."
      );
      return;
    }

    const newItem: CreateInventoryItemInput = {
      name: itemName,
      categoryId:
        inventoryCategory.find((item) => item.name === itemCategory)?.id || 0,
      quantity: itemQuantity,
      unitId: harvestUnits.find((item) => item.name === itemUnit)?.id || 0,
      statusId:
        inventoryStatus.find((item) => item.name === itemStatus)?.id || 0,
      dateAdded: date ? date.toISOString() : new Date().toISOString(),
    };
    // console.table(newItem);
    mutation.mutate(newItem);
  };

  return (
    <>
      <Dialog open={open} onOpenChange={setOpen}>
        <DialogTrigger asChild>
          <Button>Add New Item</Button>
        </DialogTrigger>
        <DialogContent className="sm:max-w-[425px]">
          <DialogHeader>
            <DialogTitle>Add Inventory Item</DialogTitle>
            <DialogDescription>
              Add a new plantation or fertilizer item to your inventory.
            </DialogDescription>
          </DialogHeader>
          <div className="grid gap-4 py-4">
            <div className="grid grid-cols-4 items-center gap-4">
              <Label htmlFor="name" className="text-right">
                Name
              </Label>
              <Input
                id="name"
                className="col-span-3"
                value={itemName}
                onChange={(e) => setItemName(e.target.value)}
              />
            </div>
            <div className="grid grid-cols-4 items-center gap-4">
              <Label htmlFor="type" className="text-right">
                Category
              </Label>
              <Select value={itemCategory} onValueChange={setItemCategory}>
                <SelectTrigger className="col-span-3">
                  <SelectValue placeholder="Select type" />
                </SelectTrigger>
                <SelectContent>
                  <SelectGroup>
                    <SelectLabel>Category</SelectLabel>
                    {inventoryCategory.map((categoryItem) => (
                      <SelectItem
                        key={categoryItem.id}
                        value={categoryItem.name}
                      >
                        {categoryItem.name}
                      </SelectItem>
                    ))}
                  </SelectGroup>
                </SelectContent>
              </Select>
            </div>
            <div className="grid grid-cols-4 items-center gap-4">
              <Label htmlFor="type" className="text-right">
                Status
              </Label>
              <Select value={itemStatus} onValueChange={setItemStatus}>
                <SelectTrigger className="col-span-3">
                  <SelectValue placeholder="Select status" />
                </SelectTrigger>
                <SelectContent>
                  <SelectGroup>
                    <SelectLabel>Status</SelectLabel>
                    {inventoryStatus.map((statusItem) => (
                      <SelectItem key={statusItem.id} value={statusItem.name}>
                        {statusItem.name}
                      </SelectItem>
                    ))}
                  </SelectGroup>
                </SelectContent>
              </Select>
            </div>
            <div className="grid grid-cols-4 items-center gap-4">
              <Label htmlFor="quantity" className="text-right">
                Quantity
              </Label>
              <Input
                id="quantity"
                type="number"
                className="col-span-3"
                value={itemQuantity === 0 ? "" : itemQuantity}
                onChange={(e) => setItemQuantity(Number(e.target.value))}
              />
            </div>
            <div className="grid grid-cols-4 items-center gap-4">
              <Label htmlFor="type" className="text-right">
                Unit
              </Label>
              <Select value={itemUnit} onValueChange={setItemUnit}>
                <SelectTrigger className="col-span-3">
                  <SelectValue placeholder="Select status" />
                </SelectTrigger>
                <SelectContent>
                  <SelectGroup>
                    <SelectLabel>Unit</SelectLabel>
                    {harvestUnits.map((unit) => (
                      <SelectItem key={unit.id} value={unit.name}>
                        {unit.name}
                      </SelectItem>
                    ))}
                  </SelectGroup>
                </SelectContent>
              </Select>
            </div>
            <div className="grid grid-cols-4 items-center gap-4">
              <Label htmlFor="date" className="text-right">
                Date
              </Label>
              <Popover>
                <PopoverTrigger asChild>
                  <Button
                    variant={"outline"}
                    className={cn(
                      "col-span-3 justify-start text-left font-normal",
                      !date && "text-muted-foreground"
                    )}
                  >
                    <CalendarIcon className="mr-2 h-4 w-4" />
                    {date ? format(date, "PPP") : "Pick a date"}
                  </Button>
                </PopoverTrigger>
                <PopoverContent className="w-auto p-0">
                  <Calendar
                    mode="single"
                    selected={date}
                    onSelect={setDate}
                    initialFocus
                  />
                </PopoverContent>
              </Popover>
            </div>
          </div>
          <DialogFooter>
            <div className="flex flex-col items-center w-full space-y-2">
              <Button type="button" onClick={handleSave} className="w-full">
                Save Item
              </Button>

              <div className="flex flex-col items-center space-y-2">
                {isSubmitted && (
                  <p className="text-green-500 text-sm">
                    {successMessage} You may close this window.
                  </p>
                )}

                {errorMessage && (
                  <p className="text-red-500 text-sm">{errorMessage}</p>
                )}
              </div>
            </div>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    </>
  );
}