import React, { useEffect, useMemo } from "react";
import { zodResolver } from "@hookform/resolvers/zod";
import { useForm, Controller, useFieldArray } from "react-hook-form";
import { z } from "zod";
import { Grid } from "../../components/Grid/Grid";
import Typography from "../../components/Typography/Typography";
import Button from "../../components/Button/Button";
import Textfield from "../../components/Textfeild/Textfeild";
import AutoComplete from "../../components/AutoComplete/AutoComplete";
import { useDrawerStore } from "../../context/zustand-store/appStore";
import { useUserProfileStore } from "../../context/zustand-store/userStore";
import { useApiRequest, useApiMutation } from "../../utils/useApiRequest";
import { useToast } from "../../hooks/useToast";
import { TrashIcon } from "@heroicons/react/24/outline";
import {
  zValidateString,
  zValidateStringOptional,
  zValidateAutoCompleteOptional,
} from "../../data/getFormTypeErrors";

interface MainSubmitInspectionProps {
  item?: any;
  isEdit?: boolean;
  inspectId?: string;
  handleUpdate?: () => void;
}

const infractionSchema = z.object({
  title: zValidateString("عنوان تخلف"),
  description: zValidateString("توضیحات تخلف"),
});

const schema = z.object({
  license_type: z.array(z.union([z.string(), z.number()])).min(1, {
    message: "لطفاً نوع پروانه کسب را انتخاب کنید.",
  }),
  document_number: zValidateString("شماره پرونده یا مجوز"),
  issuer: zValidateString("صادر کننده پروانه"),
  economic_code: zValidateString("کد اقتصادی"),
  registration_number: zValidateString("شماره ثبت"),
  ownership_type: z.array(z.union([z.string(), z.number()])).min(1, {
    message: "لطفاً نوع مالکیت را انتخاب کنید.",
  }),
  unit_type: z.array(z.union([z.string(), z.number()])).min(1, {
    message: "لطفاً نوع واحد را انتخاب کنید.",
  }),
  description: zValidateStringOptional("توضیحات"),
  inspectors: zValidateAutoCompleteOptional(),
  infractions: z.array(infractionSchema).optional(),
  violation_amount: zValidateStringOptional("جمع کل ارزش ریالی تخلف"),
  plaintiff_damage: zValidateStringOptional("جمع کل خسارت وارده به شاکی"),
});

type FormValues = z.infer<typeof schema>;

const MainSubmitInspection: React.FC<MainSubmitInspectionProps> = ({
  item,
  isEdit = false,
  inspectId,
  handleUpdate,
}) => {
  const { profile } = useUserProfileStore();
  const { closeDrawer } = useDrawerStore();
  const showToast = useToast();

  const { data: usersData } = useApiRequest({
    api: `users/${profile?.province}`,
    enabled: !!profile?.province,
  });

  const licenseTypeOptions = [
    { key: "دائم", value: "دائم" },
    { key: "موقت", value: "موقت" },
  ];

  const ownershipTypeOptions = [
    { key: "دولتی", value: "دولتی" },
    { key: "غیر دولتی", value: "غیر دولتی" },
    { key: "استیجاری", value: "استیجاری" },
    { key: "شخصی", value: "شخصی" },
    { key: "سایر موارد", value: "سایر موارد" },
  ];

  const unitTypeOptions = [
    { key: "وارد کننده", value: "وارد کننده" },
    { key: "تولیدی صنعتی", value: "تولیدی صنعتی" },
    { key: "تولیدی صنفی", value: "تولیدی صنفی" },
    { key: "انبار", value: "انبار" },
    { key: "سردخانه", value: "سردخانه" },
    { key: "توزیعی", value: "توزیعی" },
    { key: "خدماتی", value: "خدماتی" },
    { key: "خرده فروش", value: "خرده فروش" },
    { key: "عمده فروش", value: "عمده فروش" },
  ];

  const usersList = Array.isArray(usersData)
    ? usersData
    : ((usersData as any)?.data ?? []);

  const inspectorOptions = useMemo(() => {
    if (!usersList?.length) return [];
    return usersList
      .filter((user: any) => user.province === profile?.province)
      .map((user: any) => ({
        key: `${user.fullname} / ${user.mobile}`,
        value: `${user.fullname} / ${user.mobile}`,
      }));
  }, [usersList, profile]);

  const defaultInspectorKeys = useMemo(() => {
    if (!isEdit || !item?.inspectors) return [];
    return item.inspectors.map((insp: any) => {
      if (typeof insp === "string") return insp;
      const user = usersList?.find((u: any) => u.fullname === insp.fullname);
      return user ? `${insp.fullname} / ${user.mobile}` : insp.fullname;
    });
  }, [item, isEdit, usersList]);

  const {
    control,
    handleSubmit,
    setValue,
    watch,
    formState: { errors, isSubmitting },
  } = useForm<FormValues>({
    resolver: zodResolver(schema),
    defaultValues: {
      license_type: item?.license_type ? [item.license_type] : [],
      document_number: item?.document_number || "",
      issuer: item?.issuer || "",
      economic_code: item?.economic_code || "",
      registration_number: item?.registration_number || "",
      ownership_type: item?.ownership_type ? [item.ownership_type] : [],
      unit_type: item?.unit_type ? [item.unit_type] : [],
      description: item?.description || "",
      inspectors: defaultInspectorKeys,
      infractions: item?.infractions || [],
      violation_amount: item?.violation_amount || "",
      plaintiff_damage: item?.plaintiff_damage || "",
    },
  });

  const { fields, append, remove } = useFieldArray({
    control,
    name: "infractions",
  });

  const watchedInfractions = watch("infractions");

  useEffect(() => {
    if (isEdit && item?.inspectors && usersList?.length) {
      const inspectorStrings = item.inspectors.map((insp: any) => {
        if (typeof insp === "string") return insp;
        const user = usersList.find((u: any) => u.fullname === insp.fullname);
        return user ? `${insp.fullname} / ${user.mobile}` : insp.fullname;
      });
      setValue("inspectors", inspectorStrings);
    }
  }, [item, isEdit, usersList, setValue]);

  const submitInspectionMutation = useApiMutation({
    api: "inspections",
    method: "post",
  });

  // Create update mutation with the correct URL including the ID
  const updateInspectionMutation = useApiMutation({
    api: inspectId ? `inspections/${inspectId}` : "inspections",
    method: "put",
  });

  const onSubmit = async (data: FormValues) => {
    try {
      const payload = {
        user_id: profile?._id || profile?.Id,
        place_key: item?.key,
        province: profile?.province,
        license_type: String(data.license_type[0]),
        document_number: data.document_number,
        issuer: data.issuer,
        economic_code: data.economic_code,
        registration_number: data.registration_number,
        ownership_type: String(data.ownership_type[0]),
        unit_type: String(data.unit_type[0]),
        description: data.description || "",
        infractions: data.infractions || [],
        inspectors: (data.inspectors || []).map((inspector) => {
          const fullname = String(inspector).split(" / ")[0];
          return { fullname };
        }),
        violation_amount: data.violation_amount || "0",
        plaintiff_damage: data.plaintiff_damage || "0",
      };

      if (isEdit && inspectId) {
        await updateInspectionMutation.mutateAsync(payload);
        showToast("ویرایش بازرسی با موفقیت ثبت شد", "success");
        handleUpdate?.();
      } else {
        await submitInspectionMutation.mutateAsync(payload);
        showToast("بازرسی با موفقیت ثبت شد", "success");
        handleUpdate?.();
      }

      closeDrawer();
    } catch (error: any) {
      console.error("Error submitting inspection:", error);
      showToast(error?.response?.data?.message || "بازرسی ثبت نشد!", "error");
    }
  };

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <Grid container column className="gap-2">
        <Controller
          name="license_type"
          control={control}
          render={({ field }) => (
            <AutoComplete
              data={licenseTypeOptions}
              selectedKeys={
                (Array.isArray(field.value)
                  ? field.value
                  : field.value
                    ? [field.value]
                    : []) as (string | number)[]
              }
              onChange={(keys) => setValue("license_type", keys as any)}
              title="نوع پروانه کسب"
              error={!!errors.license_type}
              helperText={errors.license_type?.message}
            />
          )}
        />

        <Controller
          name="issuer"
          control={control}
          render={({ field }) => (
            <Textfield
              placeholder="صادر کننده پروانه"
              value={field.value}
              onChange={field.onChange}
              error={!!errors.issuer}
              helperText={errors.issuer?.message}
              fullWidth
            />
          )}
        />

        <Controller
          name="document_number"
          control={control}
          render={({ field }) => (
            <Textfield
              placeholder="شماره پروانه یا مجوز"
              value={field.value}
              onChange={field.onChange}
              error={!!errors.document_number}
              helperText={errors.document_number?.message}
              fullWidth
            />
          )}
        />

        <Controller
          name="registration_number"
          control={control}
          render={({ field }) => (
            <Textfield
              placeholder="شماره ثبت"
              value={field.value}
              onChange={field.onChange}
              error={!!errors.registration_number}
              helperText={errors.registration_number?.message}
              fullWidth
            />
          )}
        />

        <Controller
          name="economic_code"
          control={control}
          render={({ field }) => (
            <Textfield
              placeholder="کد اقتصادی"
              value={field.value}
              onChange={field.onChange}
              error={!!errors.economic_code}
              helperText={errors.economic_code?.message}
              fullWidth
            />
          )}
        />

        <Controller
          name="ownership_type"
          control={control}
          render={({ field }) => (
            <AutoComplete
              data={ownershipTypeOptions}
              selectedKeys={
                (Array.isArray(field.value)
                  ? field.value
                  : field.value
                    ? [field.value]
                    : []) as (string | number)[]
              }
              onChange={(keys) => setValue("ownership_type", keys as any)}
              title="نوع مالکیت"
              error={!!errors.ownership_type}
              helperText={errors.ownership_type?.message}
            />
          )}
        />

        <Controller
          name="unit_type"
          control={control}
          render={({ field }) => (
            <AutoComplete
              data={unitTypeOptions}
              selectedKeys={
                (Array.isArray(field.value)
                  ? field.value
                  : field.value
                    ? [field.value]
                    : []) as (string | number)[]
              }
              onChange={(keys) => setValue("unit_type", keys as any)}
              title="نوع واحد"
              error={!!errors.unit_type}
              helperText={errors.unit_type?.message}
            />
          )}
        />

        <Controller
          name="inspectors"
          control={control}
          render={({ field }) => (
            <AutoComplete
              data={inspectorOptions}
              multiselect
              selectedKeys={
                (Array.isArray(field.value) ? field.value : []) as (
                  | string
                  | number
                )[]
              }
              onChange={(keys) => setValue("inspectors", keys as any)}
              title="بازرسان همراه"
              error={!!errors.inspectors}
              helperText={errors.inspectors?.message}
            />
          )}
        />

        <Grid container className="items-center justify-between gap-2">
          <Typography variant="body1" className="font-semibold">
            تخلفات
          </Typography>
          <Button
            type="button"
            size="small"
            onClick={() => {
              if (fields.length < 5) {
                append({ title: "", description: "" });
              } else {
                showToast("حداکثر 5 تخلف می‌توانید اضافه کنید", "error");
              }
            }}
            className="flex items-center gap-2"
            disabled={fields.length >= 5}
          >
            افزودن تخلف
          </Button>
        </Grid>

        {fields.map((field, index) => (
          <Grid
            key={field.id}
            container
            column
            className="gap-2 p-2 border border-gray-200 dark:border-dark-600 rounded-lg bg-gray-50 dark:bg-dark-700/50"
          >
            <Grid container className="items-center justify-between gap-2">
              <Typography
                variant="body2"
                className="text-gray-700 dark:text-gray-300 font-medium"
              >
                تخلف {index + 1}
              </Typography>
              <button
                type="button"
                onClick={() => remove(index)}
                className="p-1.5 text-red-600 hover:bg-red-50 dark:hover:bg-red-900/20 rounded-md transition-colors"
                aria-label="حذف تخلف"
              >
                <TrashIcon className="w-5 h-5" />
              </button>
            </Grid>
            <Controller
              name={`infractions.${index}.title`}
              control={control}
              render={({ field }) => (
                <Textfield
                  placeholder={`عنوان تخلف ${index + 1}`}
                  value={field.value}
                  onChange={field.onChange}
                  error={!!errors.infractions?.[index]?.title}
                  helperText={errors.infractions?.[index]?.title?.message}
                  fullWidth
                />
              )}
            />
            <Controller
              name={`infractions.${index}.description`}
              control={control}
              render={({ field }) => (
                <Grid container column className="gap-1">
                  <textarea
                    placeholder={`توضیحات تخلف ${index + 1}`}
                    value={field.value}
                    onChange={field.onChange}
                    className="w-full px-4 py-2 border border-gray-300 dark:border-dark-600 rounded-lg bg-white dark:bg-dark-800 text-gray-900 dark:text-gray-100 min-h-[80px] focus:outline-none focus:ring-2 focus:ring-primary-500 dark:focus:ring-primary-400 transition-all"
                    rows={3}
                  />
                  {errors.infractions?.[index]?.description && (
                    <p className="text-red-400 text-xs">
                      {errors.infractions[index]?.description?.message}
                    </p>
                  )}
                </Grid>
              )}
            />
          </Grid>
        ))}

        {watchedInfractions && watchedInfractions.length > 0 && (
          <Grid container column className="gap-2">
            <Controller
              name="violation_amount"
              control={control}
              render={({ field }) => (
                <Textfield
                  placeholder="جمع کل ارزش ریالی تخلف"
                  value={field.value}
                  onChange={field.onChange}
                  isNumber
                  fullWidth
                  error={!!errors.violation_amount}
                  helperText={errors.violation_amount?.message}
                />
              )}
            />

            <Controller
              name="plaintiff_damage"
              control={control}
              render={({ field }) => (
                <Textfield
                  placeholder="جمع کل خسارت وارده به شاکی"
                  value={field.value}
                  onChange={field.onChange}
                  isNumber
                  fullWidth
                  error={!!errors.plaintiff_damage}
                  helperText={errors.plaintiff_damage?.message}
                />
              )}
            />
          </Grid>
        )}

        <Controller
          name="description"
          control={control}
          render={({ field }) => (
            <Textfield
              placeholder="توضیحات..."
              value={field.value || ""}
              onChange={field.onChange}
              fullWidth
              error={!!errors.description}
              helperText={errors.description?.message}
            />
          )}
        />

        <Button
          type="submit"
          variant="submit"
          fullWidth
          disabled={
            isSubmitting ||
            submitInspectionMutation.isPending ||
            updateInspectionMutation.isPending
          }
          className="mt-4"
        >
          {isEdit ? "ویرایش بازرسی" : "ثبت بازرسی"}
        </Button>
      </Grid>
    </form>
  );
};

export default MainSubmitInspection;
