import { BaseDBEntity, SavedDBEntity } from '@naturalcycles/js-lib'
import { Joi } from './joi.extensions'
import {
  AlternativesSchemaTyped,
  AnySchemaTyped,
  ArraySchemaTyped,
  BooleanSchemaTyped,
  ObjectSchemaTyped,
  StringSchemaTyped,
} from './joi.model'

export const booleanSchema = Joi.boolean() as BooleanSchemaTyped
export const booleanDefaultToFalseSchema = Joi.boolean().default(false) as BooleanSchemaTyped
export const stringSchema = Joi.string()
export const numberSchema = Joi.number()
export const integerSchema = Joi.number().integer()
export const percentageSchema = Joi.number().integer().min(0).max(100)
export const dateStringSchema = stringSchema.dateString()
export const binarySchema = Joi.binary()

export const urlSchema = (scheme: string | string[] = 'https'): StringSchemaTyped =>
  Joi.string().uri({ scheme })

export function arraySchema<T>(items?: AnySchemaTyped<T, T>): ArraySchemaTyped<T> {
  return items ? Joi.array().items(items) : Joi.array()
}

export function objectSchema<IN, OUT = IN>(schema?: {
  [key in keyof Partial<IN>]: AnySchemaTyped<IN[key]>
}): ObjectSchemaTyped<IN, OUT> {
  return Joi.object(schema)
}

export function oneOfSchema<T = any>(
  ...schemas: AnySchemaTyped<any>[]
): AlternativesSchemaTyped<T> {
  return Joi.alternatives(schemas)
}

export const anySchema = Joi.any()
export const anyObjectSchema = Joi.object().options({ stripUnknown: false })

// 1g498efj5sder3324zer
/**
 * [a-zA-Z0-9_]*
 * 6-64 length
 */
export const idSchema = stringSchema.regex(/^[a-zA-Z0-9_]{6,64}$/)

/**
 * `_` should NOT be allowed to be able to use slug-ids as part of natural ids with `_` separator.
 */
export const SLUG_PATTERN = /^[a-z0-9-]*$/

/**
 * "Slug" - a valid URL, filename, etc.
 */
export const slugSchema = stringSchema.regex(/^[a-z0-9-]{1,255}$/)

// 16725225600 is 2500-01-01
export const unixTimestampSchema = numberSchema.integer().min(0).max(16725225600)

// 2
export const verSchema = numberSchema.optional().integer().min(1).max(100)

/**
 * Be careful, by default emailSchema does TLD validation. To disable it - use `stringSchema.email({tld: false}).lowercase()`
 */
export const emailSchema = stringSchema.email().lowercase()

/**
 * Pattern is simplified for our use, it's not a canonical SemVer.
 */
export const SEM_VER_PATTERN = /^[0-9]+\.[0-9]+\.[0-9]+$/
export const semVerSchema = stringSchema.regex(SEM_VER_PATTERN)
// todo: .error(() => 'should be SemVer')

export const userAgentSchema = stringSchema
  .min(5) // I've seen UA of `Android` (7 characters)
  .max(400)

export const utcOffsetSchema = numberSchema
  .min(-14 * 60)
  .max(14 * 60)
  .dividable(15)

export const ipAddressSchema = stringSchema.ip()

export const baseDBEntitySchema = objectSchema<BaseDBEntity>({
  id: stringSchema.optional(),
  created: unixTimestampSchema.optional(),
  updated: unixTimestampSchema.optional(),
})

export const savedDBEntitySchema = objectSchema<SavedDBEntity>({
  id: stringSchema,
  created: unixTimestampSchema,
  updated: unixTimestampSchema,
})