const BaseType = require('./types/base.js')

/**
 * validate
 * @param {Object} src
 * @param {import('./type.js').Schema} schema
 */
function validate (src, schema) {
  if (typeof src !== 'object' || typeof schema !== 'object') throw new Error('source or schema not object')
  for (const it in schema) {
    if (schema[it] instanceof BaseType) {
      const result = schema[it].validate(src[it])
      if (result) throw new Error(`field [${it}]: ${result}`)
    } else if (typeof schema[it] === 'object' && 'type' in schema[it] && schema[it].type instanceof BaseType) {
      const result = schema[it].type.validate(src[it])
      if (result) throw new Error(`field [${it}]: ${result}`)
    } else {
      throw new Error('not get any check schema type')
    }

    if (typeof schema[it] === 'object' && 'children' in schema[it]) {
      validate(src[it], schema[it].children)
    }
  }
}

module.exports = validate