309 lines
7 KiB
Go
309 lines
7 KiB
Go
// Copyright © 2016 Abcum Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package conv
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import (
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"fmt"
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"strconv"
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"time"
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"github.com/abcum/surreal/sql"
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"github.com/abcum/surreal/util/chck"
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)
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func toNumber(str string) (float64, error) {
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val, err := strconv.ParseFloat(str, 64)
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if err != nil {
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val = 0.0
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err = fmt.Errorf("Expected a number, but found '%v'", str)
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}
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return float64(int64(val)), err
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}
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func toDouble(str string) (float64, error) {
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val, err := strconv.ParseFloat(str, 64)
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if err != nil {
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val = 0.0
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err = fmt.Errorf("Expected a number, but found '%v'", str)
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}
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return float64(val), err
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}
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func toBoolean(str string) (bool, error) {
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val, err := strconv.ParseBool(str)
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if err != nil {
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val = false
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err = fmt.Errorf("Expected a boolean, but found '%v'", str)
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}
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return bool(val), err
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}
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// --------------------------------------------------
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func MustBe(t, obj interface{}) (val interface{}) {
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switch t {
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default:
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return obj
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case "array":
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return MustBeArray(obj)
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case "object":
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return MustBeObject(obj)
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}
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}
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func MustBeArray(obj interface{}) (val interface{}) {
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if now, ok := obj.([]interface{}); ok {
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val = now
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} else {
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val = make([]interface{}, 0)
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}
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return
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}
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func MustBeObject(obj interface{}) (val interface{}) {
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if now, ok := obj.(map[string]interface{}); ok {
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val = now
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} else {
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val = make(map[string]interface{})
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}
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return
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}
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// --------------------------------------------------
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func MightBe(obj interface{}) (val interface{}, ok bool) {
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switch now := obj.(type) {
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case string:
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if val, ok := MightBeDatetime(now); ok {
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return val, ok
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}
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if val, ok := MightBeRecord(now); ok {
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return val, ok
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}
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}
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return obj, false
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}
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func MightBeDatetime(obj string) (val interface{}, ok bool) {
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if val, err := time.Parse(time.RFC3339, obj); err == nil {
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return val, true
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}
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return nil, false
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}
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func MightBeRecord(obj string) (val interface{}, ok bool) {
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if val := sql.ParseThing(obj); val != nil {
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return val, true
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}
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return nil, false
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}
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// --------------------------------------------------
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func ConvertTo(t, k string, obj interface{}) (val interface{}, err error) {
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switch t {
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default:
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return obj, nil
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case "uuid":
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return ConvertToUuid(obj)
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case "email":
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return ConvertToEmail(obj)
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case "phone":
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return ConvertToPhone(obj)
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case "array":
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return ConvertToArray(obj)
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case "object":
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return ConvertToObject(obj)
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case "domain":
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return ConvertToDomain(obj)
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case "base64":
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return ConvertToBase64(obj)
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case "string":
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return ConvertToString(obj)
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case "number":
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return ConvertToNumber(obj)
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case "double":
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return ConvertToDouble(obj)
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case "boolean":
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return ConvertToBoolean(obj)
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case "datetime":
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return ConvertToDatetime(obj)
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case "latitude":
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return ConvertToLatitude(obj)
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case "longitude":
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return ConvertToLongitude(obj)
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case "record":
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return ConvertToRecord(obj, k)
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}
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}
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func ConvertToUuid(obj interface{}) (val string, err error) {
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val = fmt.Sprintf("%v", obj)
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if !chck.IsUUID(val) {
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err = fmt.Errorf("Expected a UUID, but found '%v'", obj)
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}
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return
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}
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func ConvertToEmail(obj interface{}) (val string, err error) {
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val = fmt.Sprintf("%v", obj)
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if !chck.IsEmail(val) {
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err = fmt.Errorf("Expected an email address, but found '%v'", obj)
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}
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return
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}
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func ConvertToPhone(obj interface{}) (val string, err error) {
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val = fmt.Sprintf("%v", obj)
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if !chck.IsPhone(val) {
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err = fmt.Errorf("Expected a phone number, but found '%v'", obj)
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}
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return
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}
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func ConvertToArray(obj interface{}) (val []interface{}, err error) {
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if now, ok := obj.([]interface{}); ok {
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val = now
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} else {
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err = fmt.Errorf("Expected an array, but found '%v'", obj)
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}
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return
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}
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func ConvertToObject(obj interface{}) (val map[string]interface{}, err error) {
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if now, ok := obj.(map[string]interface{}); ok {
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val = now
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} else {
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err = fmt.Errorf("Expected an object, but found '%v'", obj)
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}
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return
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}
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func ConvertToDomain(obj interface{}) (val string, err error) {
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val = fmt.Sprintf("%v", obj)
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if !chck.IsDomain(val) {
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err = fmt.Errorf("Expected a domain name, but found '%v'", obj)
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}
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return
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}
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func ConvertToBase64(obj interface{}) (val string, err error) {
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val = fmt.Sprintf("%v", obj)
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if !chck.IsBase64(val) {
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err = fmt.Errorf("Expected base64 data, but found '%v'", obj)
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}
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return
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}
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func ConvertToString(obj interface{}) (val string, err error) {
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switch now := obj.(type) {
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case string:
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return now, err
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case []interface{}, map[string]interface{}:
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return val, fmt.Errorf("Expected a string, but found '%v'", obj)
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default:
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return fmt.Sprintf("%v", obj), err
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}
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}
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func ConvertToNumber(obj interface{}) (val float64, err error) {
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switch now := obj.(type) {
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case int64:
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return float64(now), err
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case float64:
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return float64(now), err
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case string:
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return toNumber(now)
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default:
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return toNumber(fmt.Sprintf("%v", obj))
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}
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}
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func ConvertToDouble(obj interface{}) (val float64, err error) {
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switch now := obj.(type) {
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case int64:
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return float64(now), err
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case float64:
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return float64(now), err
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case string:
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return toDouble(now)
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default:
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return toDouble(fmt.Sprintf("%v", obj))
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}
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}
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func ConvertToBoolean(obj interface{}) (val bool, err error) {
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switch now := obj.(type) {
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case int64:
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return now > 0, err
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case float64:
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return now > 0, err
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case string:
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return toBoolean(now)
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default:
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return toBoolean(fmt.Sprintf("%v", obj))
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}
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}
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func ConvertToDatetime(obj interface{}) (val time.Time, err error) {
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switch now := obj.(type) {
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case time.Time:
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val = now
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case string:
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val, err = time.Parse(time.RFC3339Nano, now)
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default:
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err = fmt.Errorf("Expected a datetime, but found '%v'", obj)
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}
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return
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}
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func ConvertToLatitude(obj interface{}) (val float64, err error) {
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str := fmt.Sprintf("%v", obj)
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if !chck.IsLatitude(str) {
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err = fmt.Errorf("Expected a latitude value, but found '%v'", obj)
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}
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return toNumber(str)
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}
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func ConvertToLongitude(obj interface{}) (val float64, err error) {
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str := fmt.Sprintf("%v", obj)
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if !chck.IsLongitude(str) {
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err = fmt.Errorf("Expected a longitude value, but found '%v'", obj)
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}
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return toNumber(str)
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}
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func ConvertToRecord(obj interface{}, tb string) (val *sql.Thing, err error) {
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switch now := obj.(type) {
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case *sql.Thing:
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switch tb {
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case now.TB:
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val = now
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case "":
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val = now
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default:
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err = fmt.Errorf("Expected a record of type '%s', but found '%v'", tb, obj)
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}
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default:
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switch tb {
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default:
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err = fmt.Errorf("Expected a record of type '%s', but found '%v'", tb, obj)
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case "":
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err = fmt.Errorf("Expected a record of any type, but found '%v'", obj)
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}
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}
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return
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}
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