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package tgbotapi
import (
"encoding/json"
"reflect"
"strconv"
)
// Params represents a set of parameters that gets passed to a request.
type Params map[string]string
// AddNonEmpty adds a value if it not an empty string.
func (p Params) AddNonEmpty(key, value string) {
if value != "" {
p[key] = value
}
}
// AddNonZero adds a value if it is not zero.
func (p Params) AddNonZero(key string, value int) {
if value != 0 {
p[key] = strconv.Itoa(value)
}
}
// AddNonZero64 is the same as AddNonZero except uses an int64.
func (p Params) AddNonZero64(key string, value int64) {
if value != 0 {
p[key] = strconv.FormatInt(value, 10)
}
}
// AddBool adds a value of a bool if it is true.
func (p Params) AddBool(key string, value bool) {
if value {
p[key] = strconv.FormatBool(value)
}
}
// AddNonZeroFloat adds a floating point value that is not zero.
func (p Params) AddNonZeroFloat(key string, value float64) {
if value != 0 {
p[key] = strconv.FormatFloat(value, 'f', 6, 64)
}
}
// AddInterface adds an interface if it is not nil and can be JSON marshalled.
func (p Params) AddInterface(key string, value interface{}) error {
if value == nil || (reflect.ValueOf(value).Kind() == reflect.Ptr && reflect.ValueOf(value).IsNil()) {
return nil
}
b, err := json.Marshal(value)
if err != nil {
return err
}
p[key] = string(b)
return nil
}
// AddFirstValid attempts to add the first item that is not a default value.
//
// For example, AddFirstValid(0, "", "test") would add "test".
func (p Params) AddFirstValid(key string, args ...interface{}) error {
for _, arg := range args {
switch v := arg.(type) {
case int:
if v != 0 {
p[key] = strconv.Itoa(v)
return nil
}
case int64:
if v != 0 {
p[key] = strconv.FormatInt(v, 10)
return nil
}
case string:
if v != "" {
p[key] = v
return nil
}
case nil:
default:
b, err := json.Marshal(arg)
if err != nil {
return err
}
p[key] = string(b)
return nil
}
}
return nil
}
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