import { useEffect } from "react";
import type { z } from "zod";

import type {
  TextLikeComponentProps,
  SelectLikeComponentProps,
} from "@calcom/app-store/ee/routing-forms/components/react-awesome-query-builder/widgets";
import Widgets from "@calcom/app-store/ee/routing-forms/components/react-awesome-query-builder/widgets";
import { classNames } from "@calcom/lib";
import { useLocale } from "@calcom/lib/hooks/useLocale";
import type { BookingFieldType } from "@calcom/prisma/zod-utils";
import { PhoneInput, AddressInput, Button, Label, Group, RadioField, EmailField, Tooltip } from "@calcom/ui";
import { FiUserPlus, FiX } from "@calcom/ui/components/icon";

import { ComponentForField } from "./FormBuilder";
import type { fieldsSchema } from "./FormBuilderFieldsSchema";

type Component =
  | {
      propsType: "text";
      factory: <TProps extends TextLikeComponentProps>(props: TProps) => JSX.Element;
    }
  | {
      propsType: "textList";
      factory: <TProps extends TextLikeComponentProps<string[]>>(props: TProps) => JSX.Element;
    }
  | {
      propsType: "select";
      factory: <TProps extends SelectLikeComponentProps>(props: TProps) => JSX.Element;
    }
  | {
      propsType: "boolean";
      factory: <TProps extends TextLikeComponentProps<boolean>>(props: TProps) => JSX.Element;
    }
  | {
      propsType: "multiselect";
      factory: <TProps extends SelectLikeComponentProps<string[]>>(props: TProps) => JSX.Element;
    }
  | {
      // Objective type question with option having a possible input
      propsType: "objectiveWithInput";
      factory: <
        TProps extends SelectLikeComponentProps<{
          value: string;
          optionValue: string;
        }> & {
          optionsInputs: NonNullable<z.infer<typeof fieldsSchema>[number]["optionsInputs"]>;
          value: { value: string; optionValue: string };
        } & {
          name?: string;
        }
      >(
        props: TProps
      ) => JSX.Element;
    };

// TODO: Share FormBuilder components across react-query-awesome-builder(for Routing Forms) widgets.
// There are certain differences b/w two. Routing Forms expect label to be provided by the widget itself and FormBuilder adds label itself and expect no label to be added by component.
// Routing Form approach is better as it provides more flexibility to show the label in complex components. But that can't be done right now because labels are missing consistent asterisk required support across different components
export const Components: Record<BookingFieldType, Component> = {
  text: {
    propsType: "text",
    factory: (props) => <Widgets.TextWidget noLabel={true} {...props} />,
  },
  textarea: {
    propsType: "text",
    // TODO: Make rows configurable in the form builder
    factory: (props) => <Widgets.TextAreaWidget rows={3} {...props} />,
  },
  number: {
    propsType: "text",
    factory: (props) => <Widgets.NumberWidget noLabel={true} {...props} />,
  },
  name: {
    propsType: "text",
    // Keep special "name" type field and later build split(FirstName and LastName) variant of it.
    factory: (props) => <Widgets.TextWidget noLabel={true} {...props} />,
  },
  phone: {
    propsType: "text",
    factory: ({ setValue, readOnly, ...props }) => {
      if (!props) {
        return <div />;
      }

      return (
        <PhoneInput
          disabled={readOnly}
          onChange={(val: string) => {
            setValue(val);
          }}
          {...props}
        />
      );
    },
  },
  email: {
    propsType: "text",
    factory: (props) => {
      if (!props) {
        return <div />;
      }
      return <Widgets.TextWidget type="email" noLabel={true} {...props} />;
    },
  },
  address: {
    propsType: "text",
    factory: (props) => {
      return (
        <AddressInput
          onChange={(val) => {
            props.setValue(val);
          }}
          {...props}
        />
      );
    },
  },
  multiemail: {
    propsType: "textList",
    //TODO: Make it a ui component
    factory: function MultiEmail({ value, readOnly, label, setValue, ...props }) {
      const placeholder = props.placeholder;
      const { t } = useLocale();
      value = value || [];
      const inputClassName =
        "dark:placeholder:text-darkgray-600 focus:border-brand dark:border-darkgray-300 dark:text-darkgray-900 block w-full rounded-md border-gray-300 text-sm focus:ring-black disabled:bg-gray-200 disabled:hover:cursor-not-allowed dark:bg-transparent dark:selection:bg-green-500 disabled:dark:text-gray-500";
      return (
        <>
          {value.length ? (
            <div>
              <label
                htmlFor="guests"
                className="mb-1 block text-sm font-medium text-gray-700 dark:text-white">
                {label}
              </label>
              <ul>
                {value.map((field, index) => (
                  <li key={index}>
                    <EmailField
                      disabled={readOnly}
                      value={value[index]}
                      onChange={(e) => {
                        value[index] = e.target.value;
                        setValue(value);
                      }}
                      className={classNames(inputClassName, "border-r-0")}
                      addOnClassname={classNames(
                        "border-gray-300 border block border-l-0 disabled:bg-gray-200 disabled:hover:cursor-not-allowed bg-transparent disabled:text-gray-500 dark:border-darkgray-300 "
                      )}
                      placeholder={placeholder}
                      label={<></>}
                      required
                      addOnSuffix={
                        !readOnly ? (
                          <Tooltip content="Remove email">
                            <button
                              className="m-1 disabled:hover:cursor-not-allowed"
                              type="button"
                              onClick={() => {
                                value.splice(index, 1);
                                setValue(value);
                              }}>
                              <FiX className="text-gray-600" />
                            </button>
                          </Tooltip>
                        ) : null
                      }
                    />
                  </li>
                ))}
              </ul>
              {!readOnly && (
                <Button
                  type="button"
                  color="minimal"
                  StartIcon={FiUserPlus}
                  className="my-2.5"
                  onClick={() => {
                    value.push("");
                    setValue(value);
                  }}>
                  {t("add_another")}
                </Button>
              )}
            </div>
          ) : (
            <></>
          )}

          {!value.length && !readOnly && (
            <Button
              color="minimal"
              variant="button"
              StartIcon={FiUserPlus}
              onClick={() => {
                value.push("");
                setValue(value);
              }}
              className="mr-auto">
              {label}
            </Button>
          )}
        </>
      );
    },
  },
  multiselect: {
    propsType: "multiselect",
    factory: (props) => {
      const newProps = {
        ...props,
        listValues: props.options.map((o) => ({ title: o.label, value: o.value })),
      };
      return <Widgets.MultiSelectWidget {...newProps} />;
    },
  },
  select: {
    propsType: "select",
    factory: (props) => {
      const newProps = {
        ...props,
        listValues: props.options.map((o) => ({ title: o.label, value: o.value })),
      };
      return <Widgets.SelectWidget {...newProps} />;
    },
  },
  checkbox: {
    propsType: "multiselect",
    factory: ({ options, readOnly, setValue, value }) => {
      value = value || [];
      return (
        <div>
          {options.map((option, i) => {
            return (
              <label key={i} className="block">
                <input
                  type="checkbox"
                  disabled={readOnly}
                  onChange={(e) => {
                    const newValue = value.filter((v) => v !== option.value);
                    if (e.target.checked) {
                      newValue.push(option.value);
                    }
                    setValue(newValue);
                  }}
                  className="dark:bg-darkgray-300 dark:border-darkgray-300 h-4 w-4 rounded border-gray-300 text-black focus:ring-black ltr:mr-2 rtl:ml-2"
                  value={option.value}
                  checked={value.includes(option.value)}
                />
                <span className="text-sm ltr:ml-2 ltr:mr-2 rtl:ml-2 dark:text-white">
                  {option.label ?? ""}
                </span>
              </label>
            );
          })}
        </div>
      );
    },
  },
  radio: {
    propsType: "select",
    factory: ({ setValue, value, options }) => {
      return (
        <Group
          value={value}
          onValueChange={(e) => {
            setValue(e);
          }}>
          <>
            {options.map((option, i) => (
              <RadioField
                label={option.label}
                key={`option.${i}.radio`}
                value={option.label}
                id={`option.${i}.radio`}
              />
            ))}
          </>
        </Group>
      );
    },
  },
  radioInput: {
    propsType: "objectiveWithInput",
    factory: function RadioInputWithLabel({ name, options, optionsInputs, value, setValue, readOnly }) {
      useEffect(() => {
        if (!value) {
          setValue({
            value: options[0]?.value,
            optionValue: "",
          });
        }
      }, [options, setValue, value]);

      return (
        <div>
          <div>
            <div className="mb-2">
              {options.length > 1 ? (
                options.map((option, i) => {
                  return (
                    <label key={i} className="block">
                      <input
                        type="radio"
                        disabled={readOnly}
                        name={name}
                        className="dark:bg-darkgray-300 dark:border-darkgray-300 h-4 w-4 border-gray-300 text-black focus:ring-black ltr:mr-2 rtl:ml-2"
                        value={option.value}
                        onChange={(e) => {
                          setValue({
                            value: e.target.value,
                            optionValue: "",
                          });
                        }}
                        checked={value?.value === option.value}
                      />
                      <span className="text-sm ltr:ml-2 ltr:mr-2 rtl:ml-2 dark:text-white">
                        {option.label ?? ""}
                      </span>
                    </label>
                  );
                })
              ) : (
                // Show option itself as label because there is just one option
                // TODO: Support asterisk for required fields
                <Label>{options[0].label}</Label>
              )}
            </div>
          </div>
          {(() => {
            const optionField = optionsInputs[value?.value];
            if (!optionField) {
              return null;
            }
            return (
              <div>
                <ComponentForField
                  readOnly={!!readOnly}
                  field={{
                    ...optionField,
                    name: "optionField",
                  }}
                  value={value?.optionValue}
                  setValue={(val: string) => {
                    setValue({
                      value: value?.value,
                      optionValue: val,
                    });
                  }}
                />
              </div>
            );
          })()}
        </div>
      );
    },
  },
  boolean: {
    propsType: "boolean",
    factory: ({ readOnly, label, value, setValue }) => {
      return (
        <div className="flex">
          <input
            type="checkbox"
            onChange={(e) => {
              if (e.target.checked) {
                setValue(true);
              } else {
                setValue(false);
              }
            }}
            className="h-4 w-4 rounded border-gray-300 text-black focus:ring-black disabled:bg-gray-200 ltr:mr-2 rtl:ml-2 disabled:dark:text-gray-500"
            placeholder=""
            checked={value}
            disabled={readOnly}
          />
          <Label className="-mt-px block text-sm font-medium text-gray-700 dark:text-white">{label}</Label>
        </div>
      );
    },
  },
} as const;
// Should use `statisfies` to check if the `type` is from supported types. But satisfies doesn't work with Next.js config