From 1281d2b6bbc797af79d6a87b082276b2049693cd Mon Sep 17 00:00:00 2001
From: Ben Morrison <ben@gbmor.dev>
Date: Tue, 14 May 2019 02:44:37 -0400
Subject: tentatively finished QueryTag and associated functions

---
 cache/index.go | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++----
 cache/types.go | 13 +++++++++++--
 2 files changed, 63 insertions(+), 6 deletions(-)

diff --git a/cache/index.go b/cache/index.go
index ee00479..a6ee7b6 100644
--- a/cache/index.go
+++ b/cache/index.go
@@ -52,11 +52,59 @@ func (index UserIndex) QueryUser(name string) []string {
 	return users
 }
 
+// QueryTag returns all the known statuses that
+// contain the provided tag.
+func (index UserIndex) QueryTag(tag string) []string {
+	var statusmap StatusMapSlice
+	i := 0
+	for _, v := range index {
+		statusmap[i] = v.FindTag(tag)
+		i++
+	}
+
+	return statusmap.SortByTime()
+}
+
 // FindTag takes a user's tweets and looks for a given tag.
 // Returns the tweets with the tag as a []string.
-func (userdata *Data) FindTag(tag string) {
-	//for _, e := range userdata.status {
-	//parts := strings.Split(e, "\t")
+func (userdata *Data) FindTag(tag string) StatusMap {
+	var statuses StatusMap
+	for k, e := range userdata.status {
+		parts := strings.Split(e, "\t")
+		statusslice := strings.Split(parts[3], " ")
+		for _, v := range statusslice {
+			if v == tag {
+				statuses[k] = v
+				break
+			}
+		}
+	}
+
+	return statuses
+}
+
+// SortByTime returns a string slice of the statuses sorted by time
+func (sm StatusMapSlice) SortByTime() []string {
+	var tagmap StatusMap
+	var times TimeSlice
+	var statuses []string
+	for _, e := range sm {
+		for k, v := range e {
+			tagmap[k] = v
+		}
+	}
+	for k := range tagmap {
+		times = append(times, k)
+	}
+	sort.Sort(times)
+	for _, e := range times {
+		statuses = append(statuses, tagmap[e])
+	}
+
+	return statuses
+}
 
-	//}
+// GetStatuses returns the string slice containing a user's statuses
+func (index UserIndex) GetStatuses(url string) StatusMap {
+	return index[url].status
 }
diff --git a/cache/types.go b/cache/types.go
index 939114e..2962ab4 100644
--- a/cache/types.go
+++ b/cache/types.go
@@ -19,9 +19,17 @@ type Data struct {
 	nick    string
 	date    time.Time
 	apidate []byte
-	status  []string
+	status  StatusMap
 }
 
+// StatusMap holds the statuses posted by a given user. A standard
+// time.Time value is used as the key, with the status as a string.
+type StatusMap map[time.Time]string
+
+// StatusMapSlice is a slice of StatusMaps. Useful for sorting the
+// output of queries.
+type StatusMapSlice []StatusMap
+
 // Mutex to control access to the User Index.
 var imutex = sync.RWMutex{}
 
@@ -34,7 +42,8 @@ func (t TimeSlice) Len() int {
 	return len(t)
 }
 
-// Less returns true if the timestamp at index i is before the timestamp at index j in TimeSlice.
+// Less returns true if the timestamp at index i is before the
+// timestamp at index j in TimeSlice.
 // This helps satisfy sort.Interface with respect to TimeSlice.
 func (t TimeSlice) Less(i, j int) bool {
 	return t[i].Before(t[j])
-- 
cgit 1.4.1-2-gfad0