palra/lightapi

module.exports = (cb) -> 
    class Form
        constructor: (schema, req) ->
            self = this
            Object.defineProperty self, "schema",
                value: schema
                enumerable: true,
                configurable: false,
                writable: false

            @values = {}

            unless req is undefined
                @csrf = req.csrfToken() if la.config.security.csrf and req.csrfToken
                @path = req.path if req.path

        bind: (req) ->
            self = this
            throw new Error("No schema provided")  unless @schema

            _.forIn req, (val, key) ->
                if (self.schema.validation.hasOwnProperty key) or (self.schema.sanitize.hasOwnProperty key)
                    if (la.config.security.xss) then self.values[key] = _.escape(val)
                    else self.values[key] = val

            this

        validate: () ->
            throw new Error("No schema provided") if _.isEmpty @schema
            throw new Error("No values provided") if _.isEmpty @values

            res = la.components.validator(@schema, @values)
            @values = res.value
            @err = res.error

            this

        Object.defineProperty Form::, "valid",
        get: () ->
            this.validate()
            (this.err || {valid: false}).valid
    cb null, Form