getPeerStatus() helper- required for `peer show` command.

README.md

@@ -20,7 +20,12 @@ You can override this value by specifying a `PIGEON_PATH` ENV var.
 
  |Done?|Verb        |Noun    | Flag / arg 1  | Flag 2    |
  |-----|------------|--------|---------------|-----------|
+ |     |follow      |peer    | user mhash    |           |
+ |     |show        |peers   |               |           |
+ |     |show        |peers   | --blocked     |           |
  |     |block       |peer    | user mhash    |           |
+ |     |unblock     |peer    | user mhash    |           |
+ |     |unfollow    |peer    |               |           |
  |     |create      |blob    | file path     |           |
  |     |create      |blob    | pipe          |           |
  |     |create      |bundle  |               |           |
@@ -28,15 +33,10 @@ You can override this value by specifying a `PIGEON_PATH` ENV var.
  |     |find        |blob    |               |           |
  |     |find        |message | --all         |           |
  |     |find        |message | --last        |           |
- |     |follow      |peer    | user mhash    |           |
  |     |ingest      |bundle  |               |           |
  |     |publish     |draft   |               |           |
  |     |show        |draft   |               |           |
  |     |show        |message | message mhash |           |
- |     |show        |peers   |               |           |
- |     |show        |peers   | --blocked     |           |
- |     |unblock     |peer    | user mhash    |           |
- |     |unfollow    |peer    |               |           |
  |     |update      |draft   | --key=?       | --value=? |
  |  X  |show        |identity|               |           |
  |  X  |create      |identity|               |           |

project/peers.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"database/sql"
+	"log"
+)
+
+type peerStatus string
+
+const (
+	following peerStatus = "following"
+	blocked              = "blocked"
+	unknown              = "unknown"
+)
+
+func getPeerStatus(mHash string) peerStatus {
+	sqlStatement := `SELECT status FROM users WHERE mhash=$1;`
+	var status peerStatus
+	row := Database.QueryRow(sqlStatement, mHash)
+	switch err := row.Scan(&status); err {
+	case sql.ErrNoRows:
+		return "unknown"
+	case nil:
+		return status
+	default:
+		log.Fatalf("getPeerStatus failure: %s", err)
+		panic(err)
+	}
+}
+
+// func followPeer()       {}
+// func showPeers()        {}
+// func showBlockedPeers() {}
+// func blockPeer()        {}
+// func unblockPeer()      {}
+// func unfollowPeer()     {}

project/peers_test.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"testing"
+)
+
+// TEST CASE: Attempting to getPeerStatus() of peer that
+//            does not exist.
+func TestGetPeerStatus(t *testing.T) {
+	resetDB()
+	mHash := "USER.RJFSFK8YZ8XGTGKQDMSQCQPQXKH8GPRCDY86YZCFQ1QRKYEF48MG"
+	status := getPeerStatus(mHash)
+	if status != peerStatus("unknown") {
+		t.Fatalf("Expected `unknown`, got %s", status)
+	}
+}