"use client";

import { Card, CardContent } from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Badge } from "@/components/ui/badge";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import { CategoryFilterCombobox } from "@/components/ui/category-filter-combobox";
import { AccountFilterCombobox } from "@/components/ui/account-filter-combobox";
import { CategoryIcon } from "@/components/ui/category-icon";
import {
  Popover,
  PopoverContent,
  PopoverTrigger,
} from "@/components/ui/popover";
import { Calendar as CalendarComponent } from "@/components/ui/calendar";
import { Button } from "@/components/ui/button";
import { Search, X, Filter, Wallet, Calendar } from "lucide-react";
import { format } from "date-fns";
import { fr } from "date-fns/locale";
import type { Account, Category, Folder, Transaction } from "@/lib/types";

type Period = "1month" | "3months" | "6months" | "12months" | "custom" | "all";

interface TransactionFiltersProps {
  searchQuery: string;
  onSearchChange: (query: string) => void;
  selectedAccounts: string[];
  onAccountsChange: (accounts: string[]) => void;
  selectedCategories: string[];
  onCategoriesChange: (categories: string[]) => void;
  showReconciled: string;
  onReconciledChange: (value: string) => void;
  period: Period;
  onPeriodChange: (period: Period) => void;
  customStartDate?: Date;
  customEndDate?: Date;
  onCustomStartDateChange: (date: Date | undefined) => void;
  onCustomEndDateChange: (date: Date | undefined) => void;
  isCustomDatePickerOpen: boolean;
  onCustomDatePickerOpenChange: (open: boolean) => void;
  accounts: Account[];
  folders: Folder[];
  categories: Category[];
  transactionsForAccountFilter?: Transaction[]; // Filtered by categories, search, reconciled, period (not accounts)
  transactionsForCategoryFilter?: Transaction[]; // Filtered by accounts, search, reconciled, period (not categories)
}

export function TransactionFilters({
  searchQuery,
  onSearchChange,
  selectedAccounts,
  onAccountsChange,
  selectedCategories,
  onCategoriesChange,
  showReconciled,
  onReconciledChange,
  period,
  onPeriodChange,
  customStartDate,
  customEndDate,
  onCustomStartDateChange,
  onCustomEndDateChange,
  isCustomDatePickerOpen,
  onCustomDatePickerOpenChange,
  accounts,
  folders,
  categories,
  transactionsForAccountFilter,
  transactionsForCategoryFilter,
}: TransactionFiltersProps) {
  return (
    <Card>
      <CardContent className="pt-4">
        <div className="flex flex-wrap gap-4">
          <div className="flex-1 min-w-[200px]">
            <div className="relative">
              <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
              <Input
                placeholder="Rechercher..."
                value={searchQuery}
                onChange={(e) => onSearchChange(e.target.value)}
                className="pl-9"
              />
            </div>
          </div>

          <AccountFilterCombobox
            accounts={accounts}
            folders={folders}
            value={selectedAccounts}
            onChange={onAccountsChange}
            className="w-full md:w-[280px]"
            filteredTransactions={transactionsForAccountFilter}
          />

          <CategoryFilterCombobox
            categories={categories}
            value={selectedCategories}
            onChange={onCategoriesChange}
            className="w-full md:w-[220px]"
            filteredTransactions={transactionsForCategoryFilter}
          />

          <Select value={showReconciled} onValueChange={onReconciledChange}>
            <SelectTrigger className="w-full md:w-[160px]">
              <SelectValue placeholder="Pointage" />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="all">Tout</SelectItem>
              <SelectItem value="reconciled">Pointées</SelectItem>
              <SelectItem value="not-reconciled">Non pointées</SelectItem>
            </SelectContent>
          </Select>

          <Select
            value={period}
            onValueChange={(v) => {
              onPeriodChange(v as Period);
              if (v !== "custom") {
                onCustomDatePickerOpenChange(false);
              } else {
                onCustomDatePickerOpenChange(true);
              }
            }}
          >
            <SelectTrigger className="w-full md:w-[150px]">
              <SelectValue placeholder="Période" />
            </SelectTrigger>
            <SelectContent>
              <SelectItem value="1month">1 mois</SelectItem>
              <SelectItem value="3months">3 mois</SelectItem>
              <SelectItem value="6months">6 mois</SelectItem>
              <SelectItem value="12months">12 mois</SelectItem>
              <SelectItem value="custom">Personnalisé</SelectItem>
              <SelectItem value="all">Tout</SelectItem>
            </SelectContent>
          </Select>

          {period === "custom" && (
            <Popover
              open={isCustomDatePickerOpen}
              onOpenChange={onCustomDatePickerOpenChange}
            >
              <PopoverTrigger asChild>
                <Button
                  variant="outline"
                  className="w-full md:w-[280px] justify-start text-left font-normal"
                >
                  <Calendar className="mr-2 h-4 w-4" />
                  {customStartDate && customEndDate ? (
                    <>
                      {format(customStartDate, "PPP", { locale: fr })} -{" "}
                      {format(customEndDate, "PPP", { locale: fr })}
                    </>
                  ) : customStartDate ? (
                    format(customStartDate, "PPP", { locale: fr })
                  ) : (
                    <span className="text-muted-foreground">
                      Sélectionner les dates
                    </span>
                  )}
                </Button>
              </PopoverTrigger>
              <PopoverContent className="w-auto p-0" align="start">
                <div className="p-4 space-y-4">
                  <div className="space-y-2">
                    <label className="text-sm font-medium">Date de début</label>
                    <CalendarComponent
                      mode="single"
                      selected={customStartDate}
                      onSelect={(date) => {
                        onCustomStartDateChange(date);
                        if (date && customEndDate && date > customEndDate) {
                          onCustomEndDateChange(undefined);
                        }
                      }}
                      locale={fr}
                    />
                  </div>
                  <div className="space-y-2">
                    <label className="text-sm font-medium">Date de fin</label>
                    <CalendarComponent
                      mode="single"
                      selected={customEndDate}
                      onSelect={(date) => {
                        if (date && customStartDate && date < customStartDate) {
                          return;
                        }
                        onCustomEndDateChange(date);
                        if (date && customStartDate) {
                          onCustomDatePickerOpenChange(false);
                        }
                      }}
                      disabled={(date) => {
                        if (!customStartDate) return true;
                        return date < customStartDate;
                      }}
                      locale={fr}
                    />
                  </div>
                  {customStartDate && customEndDate && (
                    <div className="flex gap-2 pt-2 border-t">
                      <Button
                        variant="outline"
                        size="sm"
                        className="flex-1"
                        onClick={() => {
                          onCustomStartDateChange(undefined);
                          onCustomEndDateChange(undefined);
                        }}
                      >
                        Réinitialiser
                      </Button>
                      <Button
                        size="sm"
                        className="flex-1"
                        onClick={() => onCustomDatePickerOpenChange(false)}
                      >
                        Valider
                      </Button>
                    </div>
                  )}
                </div>
              </PopoverContent>
            </Popover>
          )}
        </div>

        <ActiveFilters
          searchQuery={searchQuery}
          onClearSearch={() => onSearchChange("")}
          selectedAccounts={selectedAccounts}
          onRemoveAccount={(id) => {
            const newAccounts = selectedAccounts.filter((a) => a !== id);
            onAccountsChange(newAccounts.length > 0 ? newAccounts : ["all"]);
          }}
          onClearAccounts={() => onAccountsChange(["all"])}
          selectedCategories={selectedCategories}
          onRemoveCategory={(id) => {
            const newCategories = selectedCategories.filter((c) => c !== id);
            onCategoriesChange(
              newCategories.length > 0 ? newCategories : ["all"],
            );
          }}
          onClearCategories={() => onCategoriesChange(["all"])}
          showReconciled={showReconciled}
          onClearReconciled={() => onReconciledChange("all")}
          period={period}
          onClearPeriod={() => {
            onPeriodChange("all");
            onCustomStartDateChange(undefined);
            onCustomEndDateChange(undefined);
          }}
          customStartDate={customStartDate}
          customEndDate={customEndDate}
          accounts={accounts}
          categories={categories}
        />
      </CardContent>
    </Card>
  );
}

function ActiveFilters({
  searchQuery,
  onClearSearch,
  selectedAccounts,
  onRemoveAccount,
  onClearAccounts,
  selectedCategories,
  onRemoveCategory,
  onClearCategories,
  showReconciled,
  onClearReconciled,
  period,
  onClearPeriod,
  customStartDate,
  customEndDate,
  accounts,
  categories,
}: {
  searchQuery: string;
  onClearSearch: () => void;
  selectedAccounts: string[];
  onRemoveAccount: (id: string) => void;
  onClearAccounts: () => void;
  selectedCategories: string[];
  onRemoveCategory: (id: string) => void;
  onClearCategories: () => void;
  showReconciled: string;
  onClearReconciled: () => void;
  period: Period;
  onClearPeriod: () => void;
  customStartDate?: Date;
  customEndDate?: Date;
  accounts: Account[];
  categories: Category[];
}) {
  const hasSearch = searchQuery.trim() !== "";
  const hasAccounts = !selectedAccounts.includes("all");
  const hasCategories = !selectedCategories.includes("all");
  const hasReconciled = showReconciled !== "all";
  const hasPeriod = period !== "all";

  const hasActiveFilters =
    hasSearch || hasAccounts || hasCategories || hasReconciled || hasPeriod;

  if (!hasActiveFilters) return null;

  const selectedAccs = accounts.filter((a) => selectedAccounts.includes(a.id));
  const selectedCats = categories.filter((c) =>
    selectedCategories.includes(c.id),
  );
  const isUncategorized = selectedCategories.includes("uncategorized");

  const clearAll = () => {
    onClearSearch();
    onClearAccounts();
    onClearCategories();
    onClearReconciled();
    onClearPeriod();
  };

  return (
    <div className="flex items-center gap-2 mt-3 pt-3 border-t border-border flex-wrap">
      <Filter className="h-3.5 w-3.5 text-muted-foreground" />

      {hasSearch && (
        <Badge variant="secondary" className="gap-1 text-xs font-normal">
          Recherche: &quot;{searchQuery}&quot;
          <button
            onClick={onClearSearch}
            className="ml-1 hover:text-foreground"
          >
            <X className="h-3 w-3" />
          </button>
        </Badge>
      )}

      {selectedAccs.map((acc) => (
        <Badge
          key={acc.id}
          variant="secondary"
          className="gap-1 text-xs font-normal"
        >
          <Wallet className="h-3 w-3" />
          {acc.name}
          <button
            onClick={() => onRemoveAccount(acc.id)}
            className="ml-1 hover:text-foreground"
          >
            <X className="h-3 w-3" />
          </button>
        </Badge>
      ))}

      {isUncategorized && (
        <Badge variant="secondary" className="gap-1 text-xs font-normal">
          Non catégorisé
          <button
            onClick={onClearCategories}
            className="ml-1 hover:text-foreground"
          >
            <X className="h-3 w-3" />
          </button>
        </Badge>
      )}

      {selectedCats.map((cat) => (
        <Badge
          key={cat.id}
          variant="secondary"
          className="gap-1 text-xs font-normal"
          style={{
            backgroundColor: `${cat.color}15`,
            borderColor: `${cat.color}30`,
          }}
        >
          <CategoryIcon icon={cat.icon} color={cat.color} size={12} />
          {cat.name}
          <button
            onClick={() => onRemoveCategory(cat.id)}
            className="ml-1 hover:text-foreground"
          >
            <X className="h-3 w-3" />
          </button>
        </Badge>
      ))}

      {hasReconciled && (
        <Badge variant="secondary" className="gap-1 text-xs font-normal">
          {showReconciled === "reconciled" ? "Pointées" : "Non pointées"}
          <button
            onClick={onClearReconciled}
            className="ml-1 hover:text-foreground"
          >
            <X className="h-3 w-3" />
          </button>
        </Badge>
      )}

      {hasPeriod && (
        <Badge variant="secondary" className="gap-1 text-xs font-normal">
          <Calendar className="h-3 w-3" />
          {period === "custom" && customStartDate && customEndDate
            ? `${format(customStartDate, "d MMM", { locale: fr })} - ${format(customEndDate, "d MMM yyyy", { locale: fr })}`
            : period === "1month"
              ? "1 mois"
              : period === "3months"
                ? "3 mois"
                : period === "6months"
                  ? "6 mois"
                  : period === "12months"
                    ? "12 mois"
                    : "Période"}
          <button
            onClick={onClearPeriod}
            className="ml-1 hover:text-foreground"
          >
            <X className="h-3 w-3" />
          </button>
        </Badge>
      )}

      <button
        onClick={clearAll}
        className="text-xs text-muted-foreground hover:text-foreground ml-auto"
      >
        Effacer tout
      </button>
    </div>
  );
}