Error handling. Vendoring

Signed-off-by: Ettore Dreucci <ettore.dreucci@gmail.com>

vendor/gopkg.in/tucnak/telebot.v2/inline.go

@@ -0,0 +1,120 @@
+package telebot
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// Query is an incoming inline query. When the user sends
+// an empty query, your bot could return some default or
+// trending results.
+type Query struct {
+	// Unique identifier for this query. 1-64 bytes.
+	ID string `json:"id"`
+
+	// Sender.
+	From User `json:"from"`
+
+	// Sender location, only for bots that request user location.
+	Location *Location `json:"location"`
+
+	// Text of the query (up to 512 characters).
+	Text string `json:"query"`
+
+	// Offset of the results to be returned, can be controlled by the bot.
+	Offset string `json:"offset"`
+}
+
+// QueryResponse builds a response to an inline Query.
+// See also: https://core.telegram.org/bots/api#answerinlinequery
+type QueryResponse struct {
+	// The ID of the query to which this is a response.
+	//
+	// Note: Telebot sets this field automatically!
+	QueryID string `json:"inline_query_id"`
+
+	// The results for the inline query.
+	Results Results `json:"results"`
+
+	// (Optional) The maximum amount of time in seconds that the result
+	// of the inline query may be cached on the server.
+	CacheTime int `json:"cache_time,omitempty"`
+
+	// (Optional) Pass True, if results may be cached on the server side
+	// only for the user that sent the query. By default, results may
+	// be returned to any user who sends the same query.
+	IsPersonal bool `json:"is_personal"`
+
+	// (Optional) Pass the offset that a client should send in the next
+	// query with the same text to receive more results. Pass an empty
+	// string if there are no more results or if you don‘t support
+	// pagination. Offset length can’t exceed 64 bytes.
+	NextOffset string `json:"next_offset"`
+
+	// (Optional) If passed, clients will display a button with specified
+	// text that switches the user to a private chat with the bot and sends
+	// the bot a start message with the parameter switch_pm_parameter.
+	SwitchPMText string `json:"switch_pm_text,omitempty"`
+
+	// (Optional) Parameter for the start message sent to the bot when user
+	// presses the switch button.
+	SwitchPMParameter string `json:"switch_pm_parameter,omitempty"`
+}
+
+// Result represents one result of an inline query.
+type Result interface {
+	ResultID() string
+	SetResultID(string)
+	Process()
+}
+
+// Results is a slice wrapper for convenient marshalling.
+type Results []Result
+
+// MarshalJSON makes sure IQRs have proper IDs and Type variables set.
+func (results Results) MarshalJSON() ([]byte, error) {
+	for _, result := range results {
+		if result.ResultID() == "" {
+			result.SetResultID(fmt.Sprintf("%d", &result))
+		}
+
+		if err := inferIQR(result); err != nil {
+			return nil, err
+		}
+	}
+
+	return json.Marshal([]Result(results))
+}
+
+func inferIQR(result Result) error {
+	switch r := result.(type) {
+	case *ArticleResult:
+		r.Type = "article"
+	case *AudioResult:
+		r.Type = "audio"
+	case *ContactResult:
+		r.Type = "contact"
+	case *DocumentResult:
+		r.Type = "document"
+	case *GifResult:
+		r.Type = "gif"
+	case *LocationResult:
+		r.Type = "location"
+	case *Mpeg4GifResult:
+		r.Type = "mpeg4_gif"
+	case *PhotoResult:
+		r.Type = "photo"
+	case *VenueResult:
+		r.Type = "venue"
+	case *VideoResult:
+		r.Type = "video"
+	case *VoiceResult:
+		r.Type = "voice"
+	case *StickerResult:
+		r.Type = "sticker"
+	default:
+		return fmt.Errorf("result %v is not supported", result)
+	}
+
+	return nil
+}