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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package model
import (
"fmt"
"net/url"
)
type UserMentionMap map[string]string
type ChannelMentionMap map[string]string
const (
userMentionsKey = "user_mentions"
userMentionsIdsKey = "user_mentions_ids"
channelMentionsKey = "channel_mentions"
channelMentionsIdsKey = "channel_mentions_ids"
)
func UserMentionMapFromURLValues(values url.Values) (UserMentionMap, error) {
return mentionsFromURLValues(values, userMentionsKey, userMentionsIdsKey)
}
func (m UserMentionMap) ToURLValues() url.Values {
return mentionsToURLValues(m, userMentionsKey, userMentionsIdsKey)
}
func ChannelMentionMapFromURLValues(values url.Values) (ChannelMentionMap, error) {
return mentionsFromURLValues(values, channelMentionsKey, channelMentionsIdsKey)
}
func (m ChannelMentionMap) ToURLValues() url.Values {
return mentionsToURLValues(m, channelMentionsKey, channelMentionsIdsKey)
}
func mentionsFromURLValues(values url.Values, mentionKey, idKey string) (map[string]string, error) {
mentions, mentionsOk := values[mentionKey]
ids, idsOk := values[idKey]
if !mentionsOk && !idsOk {
return map[string]string{}, nil
}
if !mentionsOk {
return nil, fmt.Errorf("%s key not found", mentionKey)
}
if !idsOk {
return nil, fmt.Errorf("%s key not found", idKey)
}
if len(mentions) != len(ids) {
return nil, fmt.Errorf("keys %s and %s have different length", mentionKey, idKey)
}
mentionsMap := make(map[string]string)
for i, mention := range mentions {
id := ids[i]
if oldId, ok := mentionsMap[mention]; ok && oldId != id {
return nil, fmt.Errorf("key %s has two different values: %s and %s", mention, oldId, id)
}
mentionsMap[mention] = id
}
return mentionsMap, nil
}
func mentionsToURLValues(mentions map[string]string, mentionKey, idKey string) url.Values {
values := url.Values{}
for mention, id := range mentions {
values.Add(mentionKey, mention)
values.Add(idKey, id)
}
return values
}
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