import { ref, computed, watch } from "vue"
import { themes } from "~/lib/forms/form-themes.js"
import { default as _get } from "lodash/get"
import { default as _set } from "lodash/set"
import { default as _has } from "lodash/has"

export const inputProps = {
  id: { type: String, default: null },
  name: { type: String, required: true },
  label: { type: String, required: false },
  form: { type: Object, required: false },
  theme: { type: Object, default: () => themes.default },
  modelValue: { required: false },
  required: { type: Boolean, default: false },
  disabled: { type: Boolean, default: false },
  placeholder: { type: String, default: null },
  uppercaseLabels: { type: Boolean, default: false },
  hideFieldName: { type: Boolean, default: false },
  showCharLimit: { type: Boolean, default: false },
  help: { type: String, default: null },
  helpPosition: { type: String, default: "below_input" },
  color: { type: String, default: "#3B82F6" },
  wrapperClass: { type: String, default: "relative mb-3" },
}

export function useFormInput(props, context, formPrefixKey = null) {
  const content = ref(props.modelValue)

  const inputStyle = computed(() => {
    return {
      "--tw-ring-color": props.color,
    }
  })

  const hasValidation = computed(() => {
    return (
      props.form !== null &&
      props.form !== undefined &&
      _has(props.form, "errors")
    )
  })

  const hasError = computed(() => {
    return hasValidation.value && props.form?.errors?.has(props.name)
  })

  const compVal = computed({
    get: () => {
      if (props.form) {
        return _get(props.form, (formPrefixKey || "") + props.name)
      }
      return content.value
    },
    set: (val) => {
      if (props.form) {
        _set(props.form, (formPrefixKey || "") + props.name, val)
      } else {
        content.value = val
      }

      if (hasValidation.value) {
        props.form.errors.clear(props.name)
      }

      context.emit("update:modelValue", compVal.value)
    },
  })

  const inputWrapperProps = computed(() => {
    const wrapperProps = {}
    Object.keys(inputProps).forEach((key) => {
      if (!["modelValue", "disabled", "placeholder", "color"].includes(key)) {
        wrapperProps[key] = props[key]
      }
    })
    return wrapperProps
  })

  // Watch for changes in props.modelValue and update the local content
  watch(
    () => props.modelValue,
    (newValue) => {
      if (content.value !== newValue) {
        content.value = newValue
      }
    },
  )

  return {
    compVal,
    inputStyle,
    hasValidation,
    hasError,
    inputWrapperProps,
  }
}