From 4901b096708ff5ca54c3e5393de74f2a8be55894 Mon Sep 17 00:00:00 2001
From: bobufa <bobufa@users.noreply.github.com>
Date: Sun, 22 Jul 2018 16:58:51 +0200
Subject: add search filter expressions

---
 libdino/src/service/search_processor.vala | 85 ++++++++++++++++++++++++-------
 1 file changed, 68 insertions(+), 17 deletions(-)

(limited to 'libdino/src/service')

diff --git a/libdino/src/service/search_processor.vala b/libdino/src/service/search_processor.vala
index 3c1057ae..6962a7c1 100644
--- a/libdino/src/service/search_processor.vala
+++ b/libdino/src/service/search_processor.vala
@@ -23,31 +23,82 @@ public class SearchProcessor : StreamInteractionModule, Object {
         this.db = db;
     }
 
-    public Gee.List<Message> match_messages(string match, int offset = -1) {
-        Gee.List<Message> ret = new ArrayList<Message>(Message.equals_func);
-        var query = db.message
-            .match(db.message.body, parse_search(match))
+    private QueryBuilder prepare_search(string query) {
+        string words = "";
+        string? with = null;
+        string? in_ = null;
+        string? from = null;
+        foreach(string word in query.split(" ")) {
+            if (word.has_prefix("with:")) {
+                if (with == null) {
+                    with = word.substring(5) + "%";
+                } else {
+                    return db.message.select().where("0");
+                }
+            } else if (word.has_prefix("in:")) {
+                if (in_ == null) {
+                    in_ = word.substring(3) + "%";
+                } else {
+                    return db.message.select().where("0");
+                }
+            } else if (word.has_prefix("from:")) {
+                if (from == null) {
+                    from = word.substring(5) + "%";
+                } else {
+                    return db.message.select().where("0");
+                }
+            } else {
+                words += word + "* ";
+            }
+        }
+        if (in_ != null && with != null) {
+            return db.message.select().where("0");
+        }
+
+        QueryBuilder rows = db.message
+            .match(db.message.body, words)
             .order_by(db.message.id, "DESC")
-            .limit(10);
+            .join_with(db.jid, db.jid.id, db.message.counterpart_id)
+            .join_with(db.account, db.account.id, db.message.account_id)
+            .outer_join_with(db.real_jid, db.real_jid.message_id, db.message.id);
+        if (with != null) {
+            if (with.index_of("/") > 0) {
+                rows.with(db.message.type_, "=", Message.Type.GROUPCHAT_PM)
+                    .with(db.jid.bare_jid, "LIKE", with.substring(0, with.index_of("/")))
+                    .with(db.message.counterpart_resource, "LIKE", with.substring(with.index_of("/") + 1));
+            } else {
+                rows.where(@"($(db.message.type_) = $((int)Message.Type.CHAT) AND $(db.jid.bare_jid) LIKE ?)"
+                    + @" OR ($(db.message.type_) = $((int)Message.Type.GROUPCHAT_PM) AND $(db.real_jid.real_jid) LIKE ?)"
+                    + @" OR ($(db.message.type_) = $((int)Message.Type.GROUPCHAT_PM) AND $(db.message.counterpart_resource) LIKE ?)", {with, with, with});
+            }
+        } else if (in_ != null) {
+            rows.with(db.jid.bare_jid, "LIKE", in_)
+                .with(db.message.type_, "=", Message.Type.GROUPCHAT);
+        }
+        if (from != null) {
+            rows.where(@"($(db.message.direction) = 1 AND $(db.account.bare_jid) LIKE ?)"
+                + @" OR ($(db.message.direction) = 1 AND $(db.message.type_) IN ($((int)Message.Type.GROUPCHAT), $((int)Message.Type.GROUPCHAT_PM)) AND $(db.message.our_resource) LIKE ?)"
+                + @" OR ($(db.message.direction) = 0 AND $(db.message.type_) = $((int)Message.Type.CHAT) AND $(db.jid.bare_jid) LIKE ?)"
+                + @" OR ($(db.message.direction) = 0 AND $(db.message.type_) IN ($((int)Message.Type.GROUPCHAT), $((int)Message.Type.GROUPCHAT_PM)) AND $(db.real_jid.real_jid) LIKE ?)"
+                + @" OR ($(db.message.direction) = 0 AND $(db.message.type_) IN ($((int)Message.Type.GROUPCHAT), $((int)Message.Type.GROUPCHAT_PM)) AND $(db.message.counterpart_resource) LIKE ?)", {from, from, from, from, from});
+        }
+        return rows;
+    }
+
+    public Gee.List<Message> match_messages(string query, int offset = -1) {
+        Gee.List<Message> ret = new ArrayList<Message>(Message.equals_func);
+        var rows = prepare_search(query).limit(10);
         if (offset > 0) {
-            query.offset(offset);
+            rows.offset(offset);
         }
-        foreach (Row row in query) {
+        foreach (Row row in rows) {
             ret.add(new Message.from_row(db, row));
         }
         return ret;
     }
 
-    public int count_match_messages(string match) {
-        return (int)db.message.match(db.message.body, parse_search(match)).count();
-    }
-
-    private string parse_search(string search) {
-        string ret = "";
-        foreach(string word in search.split(" ")) {
-            ret += word + "* ";
-        }
-        return ret;
+    public int count_match_messages(string query) {
+        return (int)prepare_search(query).select({db.message.id}).count();
     }
 }
 
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