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// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package model
import (
"strings"
)
type SearchParams struct {
Terms string
IsHashtag bool
InChannel string
FromUser string
}
var searchFlags = [...]string{"from", "channel", "in"}
func splitWords(text string) []string {
words := []string{}
for _, word := range strings.Fields(text) {
word = puncStart.ReplaceAllString(word, "")
word = puncEnd.ReplaceAllString(word, "")
if len(word) != 0 {
words = append(words, word)
}
}
return words
}
func parseSearchFlags(input []string) ([]string, map[string]string) {
words := []string{}
flags := make(map[string]string)
skipNextWord := false
for i, word := range input {
if skipNextWord {
skipNextWord = false
continue
}
isFlag := false
if colon := strings.Index(word, ":"); colon != -1 {
flag := word[:colon]
value := word[colon+1:]
for _, searchFlag := range searchFlags {
// check for case insensitive equality
if strings.EqualFold(flag, searchFlag) {
if value != "" {
flags[searchFlag] = value
isFlag = true
} else if i < len(input)-1 {
flags[searchFlag] = input[i+1]
skipNextWord = true
isFlag = true
}
if isFlag {
break
}
}
}
}
if !isFlag {
words = append(words, word)
}
}
return words, flags
}
func ParseSearchParams(text string) (*SearchParams, *SearchParams) {
words, flags := parseSearchFlags(splitWords(text))
hashtagTerms := []string{}
plainTerms := []string{}
for _, word := range words {
if validHashtag.MatchString(word) {
hashtagTerms = append(hashtagTerms, word)
} else {
plainTerms = append(plainTerms, word)
}
}
inChannel := flags["channel"]
if inChannel == "" {
inChannel = flags["in"]
}
fromUser := flags["from"]
var plainParams *SearchParams
if len(plainTerms) > 0 {
plainParams = &SearchParams{
Terms: strings.Join(plainTerms, " "),
IsHashtag: false,
InChannel: inChannel,
FromUser: fromUser,
}
}
var hashtagParams *SearchParams
if len(hashtagTerms) > 0 {
hashtagParams = &SearchParams{
Terms: strings.Join(hashtagTerms, " "),
IsHashtag: true,
InChannel: inChannel,
FromUser: fromUser,
}
}
// special case for when no terms are specified but we still have a filter
if plainParams == nil && hashtagParams == nil && (inChannel != "" || fromUser != "") {
plainParams = &SearchParams{
Terms: "",
IsHashtag: false,
InChannel: inChannel,
FromUser: fromUser,
}
}
return plainParams, hashtagParams
}
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