import { Optional } from '@sprucelabs/schema'
import { namesUtil } from '@sprucelabs/spruce-skill-utils'
import { FieldDefinitions } from '#spruce/schemas/fields/fields.types'
import { SpruceSchemas } from '#spruce/schemas/schemas.types'

const formUtil = {
    /** Help guess on answers */
    onWillAskQuestionHandler<
        K extends
            keyof SpruceSchemas.SpruceCli.v2020_07_22.NamedTemplateItem = keyof SpruceSchemas.SpruceCli.v2020_07_22.NamedTemplateItem,
        V extends
            Optional<SpruceSchemas.SpruceCli.v2020_07_22.NamedTemplateItem> = Optional<SpruceSchemas.SpruceCli.v2020_07_22.NamedTemplateItem>,
    >(fieldName: K, fieldDefinition: FieldDefinitions, values: V) {
        switch (fieldName) {
            case 'nameCamel':
                if (!values.nameCamel) {
                    fieldDefinition.defaultValue = namesUtil.toCamel(
                        values.nameReadable || ''
                    )
                }
                break
            case 'nameCamelPlural':
                if (!values.nameCamelPlural) {
                    fieldDefinition.defaultValue = namesUtil.toPlural(
                        namesUtil.toCamel(values.nameReadable || '')
                    )
                }
                break
            case 'namePascal':
                if (!values.namePascal) {
                    fieldDefinition.defaultValue = namesUtil.toPascal(
                        values.nameCamel ?? values.nameReadable ?? ''
                    )
                }

                break
            case 'namePascalPlural':
                if (!values.namePascalPlural) {
                    if (values.nameCamelPlural || values.nameReadablePlural) {
                        fieldDefinition.defaultValue = namesUtil.toPascal(
                            values.nameCamelPlural ??
                                values.nameReadablePlural ??
                                ''
                        )
                    } else if (values.nameCamel || values.nameReadable) {
                        fieldDefinition.defaultValue = namesUtil.toPlural(
                            namesUtil.toPascal(
                                values.nameCamel ?? values.nameReadable ?? ''
                            )
                        )
                    }
                }
                break
            case 'nameConst':
                if (!values.nameConst) {
                    fieldDefinition.defaultValue = namesUtil.toConst(
                        values.nameCamel ??
                            values.namePascal ??
                            values.nameReadable ??
                            ''
                    )
                }
                break
            case 'nameKebab':
                if (!values.nameKebab) {
                    fieldDefinition.defaultValue = namesUtil.toKebab(
                        values.nameCamel ??
                            values.namePascal ??
                            values.nameReadable ??
                            ''
                    )
                }
                break
            case 'nameSnake':
                if (!values.nameSnake) {
                    fieldDefinition.defaultValue = namesUtil.toSnake(
                        values.nameCamel ??
                            values.namePascal ??
                            values.nameReadable ??
                            ''
                    )
                }
                break
            case 'nameSnakePlural':
                if (!values.nameSnake) {
                    fieldDefinition.defaultValue = namesUtil.toSnake(
                        values.nameCamelPlural ??
                            values.namePascalPlural ??
                            values.nameReadablePlural ??
                            ''
                    )
                }
                break
        }
        return fieldDefinition
    },
}

export default formUtil