From 64a18259c320dd9c03d78523d9ba3133ce4226b5 Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Thu, 19 Dec 2024 00:51:28 -0500
Subject: [PATCH 1/9] feat(boards2): add core flagging logic

---
 examples/gno.land/r/demo/boards2/flag.gno     | 47 +++++++++++++++++++
 .../gno.land/r/demo/boards2/permission.gno    |  2 +
 examples/gno.land/r/demo/boards2/post.gno     | 32 +++++++++++--
 examples/gno.land/r/demo/boards2/public.gno   | 28 +++++++++++
 4 files changed, 106 insertions(+), 3 deletions(-)
 create mode 100644 examples/gno.land/r/demo/boards2/flag.gno

diff --git a/examples/gno.land/r/demo/boards2/flag.gno b/examples/gno.land/r/demo/boards2/flag.gno
new file mode 100644
index 00000000000..46a9cdada2d
--- /dev/null
+++ b/examples/gno.land/r/demo/boards2/flag.gno
@@ -0,0 +1,47 @@
+package boards2
+
+import (
+	"std"
+	"strconv"
+)
+
+var flagThreshold = 3
+
+type Flag struct {
+	User   std.Address
+	Reason string
+}
+
+func NewFlag(creator std.Address, reason string) Flag {
+	return Flag{
+		User:   creator,
+		Reason: reason,
+	}
+}
+
+type Flaggable interface {
+	// AddFlag adds a new flag to an entry.
+	//
+	// Returns false if item was already flagged by user.
+	AddFlag(flag Flag) bool
+
+	// FlagsCount returns number of times entry was flagged.
+	FlagsCount() int
+}
+
+// flagItem adds a flag to a flaggable item (post, thread, etc).
+//
+// Returns whether flag count threshold is reached and item can be hidden.
+//
+// Panics if flag count threshold was already reached.
+func flagItem(item Flaggable, flag Flag) bool {
+	if item.FlagsCount() >= flagThreshold {
+		panic("item flag count threshold exceeded: " + strconv.Itoa(flagThreshold))
+	}
+
+	if !item.AddFlag(flag) {
+		panic("item has been already flagged by a user")
+	}
+
+	return item.FlagsCount() == flagThreshold
+}
diff --git a/examples/gno.land/r/demo/boards2/permission.gno b/examples/gno.land/r/demo/boards2/permission.gno
index d287b4f8e8b..e465e346418 100644
--- a/examples/gno.land/r/demo/boards2/permission.gno
+++ b/examples/gno.land/r/demo/boards2/permission.gno
@@ -7,8 +7,10 @@ const (
 	PermissionThreadCreate            = "thread:create"
 	PermissionThreadEdit              = "thread:edit"
 	PermissionThreadDelete            = "thread:delete"
+	PermissionThreadFlag              = "thread:flag"
 	PermissionThreadRepost            = "thread:repost"
 	PermissionReplyDelete             = "reply:delete"
+	PermissionReplyFlag               = "reply:flag"
 	PermissionMemberInvite            = "member:invite"
 	PermissionMemberRemove            = "member:remove"
 )
diff --git a/examples/gno.land/r/demo/boards2/post.gno b/examples/gno.land/r/demo/boards2/post.gno
index 7364b985c84..27ca884c19f 100644
--- a/examples/gno.land/r/demo/boards2/post.gno
+++ b/examples/gno.land/r/demo/boards2/post.gno
@@ -30,12 +30,14 @@ type Post struct {
 	creator       std.Address
 	title         string // optional
 	body          string
+	isHidden      bool
 	replies       avl.Tree // Post.id -> *Post
 	repliesAll    avl.Tree // Post.id -> *Post (all replies, for top-level posts)
 	reposts       avl.Tree // Board.id -> Post.id
-	threadID      PostID   // original Post.id
-	parentID      PostID   // parent Post.id (if reply or repost)
-	repostBoardID BoardID  // original Board.id (if repost)
+	flags         []Flag
+	threadID      PostID  // original Post.id
+	parentID      PostID  // parent Post.id (if reply or repost)
+	repostBoardID BoardID // original Board.id (if repost)
 	createdAt     time.Time
 	updatedAt     time.Time
 }
@@ -97,6 +99,30 @@ func (post *Post) GetUpdatedAt() time.Time {
 	return post.updatedAt
 }
 
+func (post *Post) AddFlag(flag Flag) bool {
+	// TODO: sort flags for fast search in case of big thresholds
+	for _, v := range post.flags {
+		if v.User == flag.User {
+			return false
+		}
+	}
+
+	post.flags = append(post.flags, flag)
+	return true
+}
+
+func (post *Post) FlagsCount() int {
+	return len(post.flags)
+}
+
+func (post *Post) SetVisibility(isVisible bool) {
+	post.isHidden = !isVisible
+}
+
+func (post *Post) Hidden() bool {
+	return post.isHidden
+}
+
 func (post *Post) AddReply(creator std.Address, body string) *Post {
 	board := post.board
 	pid := board.incGetPostID()
diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index 083f8daff65..e4a5fb70e8e 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -36,6 +36,21 @@ func CreateBoard(name string) BoardID {
 	return id
 }
 
+func FlagThread(bid BoardID, postID PostID, reason string) {
+	caller := std.GetOrigCaller()
+	assertHasPermission(caller, PermissionThreadFlag)
+
+	board := mustGetBoard(bid)
+	t, ok := board.GetThread(postID)
+	if !ok {
+		panic("post doesn't exist")
+	}
+
+	if flagItem(t, NewFlag(caller, reason)) {
+		t.SetVisibility(false)
+	}
+}
+
 func CreateThread(bid BoardID, title, body string) PostID {
 	assertIsUserCall()
 
@@ -72,6 +87,19 @@ func CreateReply(bid BoardID, threadID, replyID PostID, body string) PostID {
 	return reply.id
 }
 
+func FlagReply(bid BoardID, threadID, replyID PostID, reason string) {
+	caller := std.GetOrigCaller()
+	assertHasPermission(caller, PermissionThreadFlag)
+
+	board := mustGetBoard(bid)
+	thread := mustGetThread(board, threadID)
+	reply := mustGetReply(thread, replyID)
+
+	if flagItem(reply, NewFlag(caller, reason)) {
+		reply.SetVisibility(false)
+	}
+}
+
 func CreateRepost(bid BoardID, threadID PostID, title, body string, dstBoardID BoardID) PostID {
 	assertIsUserCall()
 

From 661edc26cdaaaa0715b2b36090161d0be5ad0d5b Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Thu, 19 Dec 2024 15:13:56 -0500
Subject: [PATCH 2/9] fix: address @jeronimoalbi review

---
 examples/gno.land/r/demo/boards2/flag.gno   | 6 +++---
 examples/gno.land/r/demo/boards2/public.gno | 2 ++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/examples/gno.land/r/demo/boards2/flag.gno b/examples/gno.land/r/demo/boards2/flag.gno
index 46a9cdada2d..aa4ef00b0cd 100644
--- a/examples/gno.land/r/demo/boards2/flag.gno
+++ b/examples/gno.land/r/demo/boards2/flag.gno
@@ -20,12 +20,12 @@ func NewFlag(creator std.Address, reason string) Flag {
 }
 
 type Flaggable interface {
-	// AddFlag adds a new flag to an entry.
+	// AddFlag adds a new flag to an item.
 	//
 	// Returns false if item was already flagged by user.
 	AddFlag(flag Flag) bool
 
-	// FlagsCount returns number of times entry was flagged.
+	// FlagsCount returns number of times item was flagged.
 	FlagsCount() int
 }
 
@@ -40,7 +40,7 @@ func flagItem(item Flaggable, flag Flag) bool {
 	}
 
 	if !item.AddFlag(flag) {
-		panic("item has been already flagged by a user")
+		panic("item has been already flagged by a current user")
 	}
 
 	return item.FlagsCount() == flagThreshold
diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index e4a5fb70e8e..f18734c24ab 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -38,6 +38,7 @@ func CreateBoard(name string) BoardID {
 
 func FlagThread(bid BoardID, postID PostID, reason string) {
 	caller := std.GetOrigCaller()
+	// TODO: Replace by assertHasBoardPermission() when supported
 	assertHasPermission(caller, PermissionThreadFlag)
 
 	board := mustGetBoard(bid)
@@ -89,6 +90,7 @@ func CreateReply(bid BoardID, threadID, replyID PostID, body string) PostID {
 
 func FlagReply(bid BoardID, threadID, replyID PostID, reason string) {
 	caller := std.GetOrigCaller()
+	// TODO: Replace by assertHasBoardPermission() when supported
 	assertHasPermission(caller, PermissionThreadFlag)
 
 	board := mustGetBoard(bid)

From 22718596ec0862eee800d9eca7b19874ff32fb08 Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Thu, 19 Dec 2024 15:15:50 -0500
Subject: [PATCH 3/9] fix: SetVisible

---
 examples/gno.land/r/demo/boards2/post.gno   | 2 +-
 examples/gno.land/r/demo/boards2/public.gno | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/gno.land/r/demo/boards2/post.gno b/examples/gno.land/r/demo/boards2/post.gno
index 27ca884c19f..012269e11d1 100644
--- a/examples/gno.land/r/demo/boards2/post.gno
+++ b/examples/gno.land/r/demo/boards2/post.gno
@@ -115,7 +115,7 @@ func (post *Post) FlagsCount() int {
 	return len(post.flags)
 }
 
-func (post *Post) SetVisibility(isVisible bool) {
+func (post *Post) SetVisible(isVisible bool) {
 	post.isHidden = !isVisible
 }
 
diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index f18734c24ab..385ff4d524b 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -48,7 +48,7 @@ func FlagThread(bid BoardID, postID PostID, reason string) {
 	}
 
 	if flagItem(t, NewFlag(caller, reason)) {
-		t.SetVisibility(false)
+		t.SetVisible(false)
 	}
 }
 
@@ -98,7 +98,7 @@ func FlagReply(bid BoardID, threadID, replyID PostID, reason string) {
 	reply := mustGetReply(thread, replyID)
 
 	if flagItem(reply, NewFlag(caller, reason)) {
-		reply.SetVisibility(false)
+		reply.SetVisible(false)
 	}
 }
 

From b5ed08d86b835ce978fe14e1649d12f3344b194d Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Thu, 19 Dec 2024 16:52:46 -0500
Subject: [PATCH 4/9] feat: add tests and hide hidden posts

---
 examples/gno.land/r/demo/boards2/board.gno    |  7 ++++++-
 examples/gno.land/r/demo/boards2/post.gno     | 12 ++++++++++-
 .../gno.land/r/demo/boards2/post_test.gno     | 21 +++++++++++++++++++
 examples/gno.land/r/demo/boards2/render.gno   |  8 +++++--
 4 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/examples/gno.land/r/demo/boards2/board.gno b/examples/gno.land/r/demo/boards2/board.gno
index 1920cd41225..8b667cb291e 100644
--- a/examples/gno.land/r/demo/boards2/board.gno
+++ b/examples/gno.land/r/demo/boards2/board.gno
@@ -100,8 +100,13 @@ func (board *Board) Render() string {
 	s := "\\[" + newLink("post", board.GetPostFormURL()) + "]\n\n"
 	if board.threads.Size() > 0 {
 		board.threads.Iterate("", "", func(_ string, v interface{}) bool {
+			post := v.(*Post)
+			if post.isHidden {
+				return false
+			}
+
 			s += "----------------------------------------\n"
-			s += v.(*Post).RenderSummary() + "\n"
+			s += post.RenderSummary() + "\n"
 			return false
 		})
 	}
diff --git a/examples/gno.land/r/demo/boards2/post.gno b/examples/gno.land/r/demo/boards2/post.gno
index 012269e11d1..2df46a57e84 100644
--- a/examples/gno.land/r/demo/boards2/post.gno
+++ b/examples/gno.land/r/demo/boards2/post.gno
@@ -245,6 +245,11 @@ func (post *Post) RenderSummary() string {
 		if !found {
 			return "reposted post does not exist"
 		}
+
+		if thread.isHidden {
+			return "reposted post was hidden"
+		}
+
 		return "Repost: " + post.GetSummary() + "\n" + thread.RenderSummary()
 	}
 
@@ -293,8 +298,13 @@ func (post *Post) Render(indent string, levels int) string {
 	if levels > 0 {
 		if post.replies.Size() > 0 {
 			post.replies.Iterate("", "", func(_ string, value interface{}) bool {
+				reply := value.(*Post)
+				if reply.isHidden {
+					return false
+				}
+
 				s += indent + "\n"
-				s += value.(*Post).Render(indent+"> ", levels-1)
+				s += reply.Render(indent+"> ", levels-1)
 				return false
 			})
 		}
diff --git a/examples/gno.land/r/demo/boards2/post_test.gno b/examples/gno.land/r/demo/boards2/post_test.gno
index 05888f9e297..bab7f3de93b 100644
--- a/examples/gno.land/r/demo/boards2/post_test.gno
+++ b/examples/gno.land/r/demo/boards2/post_test.gno
@@ -23,6 +23,27 @@ func TestPostUpdate(t *testing.T) {
 	uassert.False(t, post.GetUpdatedAt().IsZero())
 }
 
+func TestPostAddFlag(t *testing.T) {
+	addr := testutils.TestAddress("creator")
+	post := createTestThread(t)
+
+	flag := NewFlag(addr, "foobar")
+	uassert.True(t, post.AddFlag(flag))
+	uassert.False(t, post.AddFlag(flag), "should reject flag from duplicate user")
+	uassert.Equal(t, post.FlagsCount(), 1)
+}
+
+func TestPostSetVisible(t *testing.T) {
+	post := createTestThread(t)
+	uassert.False(t, post.Hidden(), "post should be visible by default")
+
+	post.SetVisible(false)
+	uassert.True(t, post.Hidden(), "post should be hidden")
+
+	post.SetVisible(true)
+	uassert.False(t, post.Hidden(), "post should be visible")
+}
+
 func TestPostAddRepostTo(t *testing.T) {
 	cases := []struct {
 		name, title, body string
diff --git a/examples/gno.land/r/demo/boards2/render.gno b/examples/gno.land/r/demo/boards2/render.gno
index 02e7fda9e81..a2074aae94c 100644
--- a/examples/gno.land/r/demo/boards2/render.gno
+++ b/examples/gno.land/r/demo/boards2/render.gno
@@ -59,7 +59,9 @@ func renderThread(res *mux.ResponseWriter, req *mux.Request) {
 	board := v.(*Board)
 	thread, found := board.GetThread(PostID(tID))
 	if !found {
-		res.Write("Thread does not exist with ID: " + req.GetVar("thread"))
+		res.Write("Thread does not exist with ID: " + rawID)
+	} else if thread.Hidden() {
+		res.Write("Thread with ID: " + rawID + " was hidden")
 	} else {
 		res.Write(thread.Render("", 5))
 	}
@@ -96,7 +98,9 @@ func renderReply(res *mux.ResponseWriter, req *mux.Request) {
 
 	reply, found := thread.GetReply(PostID(rID))
 	if !found {
-		res.Write("Reply does not exist with ID: " + req.GetVar("reply"))
+		res.Write("Reply does not exist with ID: " + rawID)
+	} else if reply.Hidden() {
+		res.Write("Reply with ID: " + rawID + " was hidden")
 	} else {
 		res.Write(reply.RenderInner())
 	}

From d459fa8b321e58024db2889c9257da5271952563 Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Thu, 19 Dec 2024 17:30:24 -0500
Subject: [PATCH 5/9] feat: add e2e tests

---
 examples/gno.land/r/demo/boards2/flag.gno     |  2 +-
 examples/gno.land/r/demo/boards2/public.gno   | 11 +++++++-
 .../r/demo/boards2/z_2_a_filetest.gno         | 23 ++++++++++++++++
 .../r/demo/boards2/z_2_b_filetest.gno         | 26 +++++++++++++++++++
 .../r/demo/boards2/z_2_c_filetest.gno         | 26 +++++++++++++++++++
 5 files changed, 86 insertions(+), 2 deletions(-)
 create mode 100644 examples/gno.land/r/demo/boards2/z_2_a_filetest.gno
 create mode 100644 examples/gno.land/r/demo/boards2/z_2_b_filetest.gno
 create mode 100644 examples/gno.land/r/demo/boards2/z_2_c_filetest.gno

diff --git a/examples/gno.land/r/demo/boards2/flag.gno b/examples/gno.land/r/demo/boards2/flag.gno
index aa4ef00b0cd..e5744211ddf 100644
--- a/examples/gno.land/r/demo/boards2/flag.gno
+++ b/examples/gno.land/r/demo/boards2/flag.gno
@@ -5,7 +5,7 @@ import (
 	"strconv"
 )
 
-var flagThreshold = 3
+const flagThreshold = 1
 
 type Flag struct {
 	User   std.Address
diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index 385ff4d524b..804bb4c12e6 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -73,9 +73,10 @@ func CreateReply(bid BoardID, threadID, replyID PostID, body string) PostID {
 	board := mustGetBoard(bid)
 	thread := mustGetThread(board, threadID)
 
+	assertThreadVisible(thread)
+
 	// TODO: Assert thread is not locked
 	// TODO: Assert that caller is a board member (when board type is invite only)
-
 	var reply *Post
 	if replyID == threadID {
 		// When the parent reply is the thread just add reply to thread
@@ -83,6 +84,8 @@ func CreateReply(bid BoardID, threadID, replyID PostID, body string) PostID {
 	} else {
 		// Try to get parent reply and add a new child reply
 		post := mustGetReply(thread, replyID)
+		assertThreadVisible(thread)
+
 		reply = post.AddReply(caller, body)
 	}
 	return reply.id
@@ -246,3 +249,9 @@ func assertReplyExists(thread *Post, replyID PostID) {
 		panic("reply not found: " + replyID.String())
 	}
 }
+
+func assertThreadVisible(thread *Post) {
+	if thread.Hidden() {
+		panic("thread with ID: " + thread.GetPostID().String() + " was hidden")
+	}
+}
diff --git a/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno b/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno
new file mode 100644
index 00000000000..626438d0c0a
--- /dev/null
+++ b/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno
@@ -0,0 +1,23 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/demo/boards2"
+)
+
+const owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+
+func init() {
+	std.TestSetOrigCaller(owner)
+}
+
+func main() {
+	bid := boards2.CreateBoard("test1")
+	pid := boards2.CreateThread(bid, "thread", "thread")
+	boards2.FlagThread(bid, pid, "reason")
+	rid := boards2.CreateReply(bid, pid, pid, "reply")
+}
+
+// Error:
+// thread with ID: 1 was hidden
diff --git a/examples/gno.land/r/demo/boards2/z_2_b_filetest.gno b/examples/gno.land/r/demo/boards2/z_2_b_filetest.gno
new file mode 100644
index 00000000000..a4f4d403c8c
--- /dev/null
+++ b/examples/gno.land/r/demo/boards2/z_2_b_filetest.gno
@@ -0,0 +1,26 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/demo/boards2"
+)
+
+const owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+
+func init() {
+	std.TestSetOrigCaller(owner)
+}
+
+func main() {
+	// ensure that nested replies denied if root thread is hidden.
+	bid := boards2.CreateBoard("test1")
+	pid := boards2.CreateThread(bid, "thread", "thread")
+	rid := boards2.CreateReply(bid, pid, pid, "reply1")
+
+	boards2.FlagThread(bid, pid, "reason")
+	_ = boards2.CreateReply(bid, pid, rid, "reply1.1")
+}
+
+// Error:
+// thread with ID: 1 was hidden
diff --git a/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno b/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno
new file mode 100644
index 00000000000..c5ef6a5e6ed
--- /dev/null
+++ b/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno
@@ -0,0 +1,26 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/demo/boards2"
+)
+
+const owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+
+func init() {
+	std.TestSetOrigCaller(owner)
+}
+
+func main() {
+	// ensure that nested replies denied if root thread is hidden.
+	bid := boards2.CreateBoard("test1")
+	pid := boards2.CreateThread(bid, "thread", "thread")
+	rid := boards2.CreateReply(bid, pid, pid, "reply1")
+
+	boards2.FlagReply(bid, pid, rid, "reason")
+	_ = boards2.CreateReply(bid, pid, rid, "reply1.1")
+}
+
+// Error:
+// thread with ID: 2 was hidden

From f48a46dcff428cdd5f814c50ba912227c6f5d0ea Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Thu, 19 Dec 2024 17:36:22 -0500
Subject: [PATCH 6/9] feat: add flag threshold test

---
 .../r/demo/boards2/z_2_a_filetest.gno         |  2 +-
 .../r/demo/boards2/z_2_d_filetest.gno         | 25 +++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 examples/gno.land/r/demo/boards2/z_2_d_filetest.gno

diff --git a/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno b/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno
index 626438d0c0a..d95759e4236 100644
--- a/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno
+++ b/examples/gno.land/r/demo/boards2/z_2_a_filetest.gno
@@ -16,7 +16,7 @@ func main() {
 	bid := boards2.CreateBoard("test1")
 	pid := boards2.CreateThread(bid, "thread", "thread")
 	boards2.FlagThread(bid, pid, "reason")
-	rid := boards2.CreateReply(bid, pid, pid, "reply")
+	_ = boards2.CreateReply(bid, pid, pid, "reply")
 }
 
 // Error:
diff --git a/examples/gno.land/r/demo/boards2/z_2_d_filetest.gno b/examples/gno.land/r/demo/boards2/z_2_d_filetest.gno
new file mode 100644
index 00000000000..dbd809c84cd
--- /dev/null
+++ b/examples/gno.land/r/demo/boards2/z_2_d_filetest.gno
@@ -0,0 +1,25 @@
+package main
+
+import (
+	"std"
+
+	"gno.land/r/demo/boards2"
+)
+
+const owner = std.Address("g1jg8mtutu9khhfwc4nxmuhcpftf0pajdhfvsqf5") // @test1
+
+func init() {
+	std.TestSetOrigCaller(owner)
+}
+
+func main() {
+	// Only single user per flag can't be tested atm, as flagThreshold = 1.
+	bid := boards2.CreateBoard("test1")
+	pid := boards2.CreateThread(bid, "thread", "thread")
+
+	boards2.FlagThread(bid, pid, "reason1")
+	boards2.FlagThread(bid, pid, "reason2")
+}
+
+// Error:
+// item flag count threshold exceeded: 1

From 0bfe07916c3fd7246c0d256c21e812d150657d9f Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Mon, 23 Dec 2024 12:59:50 -0500
Subject: [PATCH 7/9] feat: use per-board permissions

---
 examples/gno.land/r/demo/boards2/public.gno | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index 804bb4c12e6..d987cf8b4d0 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -38,10 +38,9 @@ func CreateBoard(name string) BoardID {
 
 func FlagThread(bid BoardID, postID PostID, reason string) {
 	caller := std.GetOrigCaller()
-	// TODO: Replace by assertHasBoardPermission() when supported
-	assertHasPermission(caller, PermissionThreadFlag)
-
 	board := mustGetBoard(bid)
+	assertHasBoardOrGlobalPermission(board, caller, PermissionThreadFlag)
+
 	t, ok := board.GetThread(postID)
 	if !ok {
 		panic("post doesn't exist")
@@ -93,10 +92,10 @@ func CreateReply(bid BoardID, threadID, replyID PostID, body string) PostID {
 
 func FlagReply(bid BoardID, threadID, replyID PostID, reason string) {
 	caller := std.GetOrigCaller()
-	// TODO: Replace by assertHasBoardPermission() when supported
-	assertHasPermission(caller, PermissionThreadFlag)
 
 	board := mustGetBoard(bid)
+	assertHasBoardOrGlobalPermission(board, caller, PermissionThreadFlag)
+
 	thread := mustGetThread(board, threadID)
 	reply := mustGetReply(thread, replyID)
 
@@ -232,6 +231,14 @@ func assertHasBoardPermission(b *Board, user std.Address, p Permission) {
 	}
 }
 
+func assertHasBoardOrGlobalPermission(b *Board, user std.Address, p Permission) {
+	if b.perms.HasPermission(user, p) || gPerm.HasPermission(user, p) {
+		return
+	}
+
+	panic("unauthorized")
+}
+
 func assertBoardExists(id BoardID) {
 	if _, found := getBoard(id); !found {
 		panic("board not found: " + id.String())

From 2506936fd48355b8bf3580f82cd445b8b9231403 Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Mon, 23 Dec 2024 13:34:09 -0500
Subject: [PATCH 8/9] feat: dont use global perm

---
 examples/gno.land/r/demo/boards2/public.gno | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index d987cf8b4d0..afc69257430 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -39,7 +39,7 @@ func CreateBoard(name string) BoardID {
 func FlagThread(bid BoardID, postID PostID, reason string) {
 	caller := std.GetOrigCaller()
 	board := mustGetBoard(bid)
-	assertHasBoardOrGlobalPermission(board, caller, PermissionThreadFlag)
+	assertHasBoardPermission(board, caller, PermissionThreadFlag)
 
 	t, ok := board.GetThread(postID)
 	if !ok {
@@ -94,7 +94,7 @@ func FlagReply(bid BoardID, threadID, replyID PostID, reason string) {
 	caller := std.GetOrigCaller()
 
 	board := mustGetBoard(bid)
-	assertHasBoardOrGlobalPermission(board, caller, PermissionThreadFlag)
+	assertHasBoardPermission(board, caller, PermissionThreadFlag)
 
 	thread := mustGetThread(board, threadID)
 	reply := mustGetReply(thread, replyID)
@@ -231,14 +231,6 @@ func assertHasBoardPermission(b *Board, user std.Address, p Permission) {
 	}
 }
 
-func assertHasBoardOrGlobalPermission(b *Board, user std.Address, p Permission) {
-	if b.perms.HasPermission(user, p) || gPerm.HasPermission(user, p) {
-		return
-	}
-
-	panic("unauthorized")
-}
-
 func assertBoardExists(id BoardID) {
 	if _, found := getBoard(id); !found {
 		panic("board not found: " + id.String())

From a3e31889e412d51f3d695fced684a187501aa067 Mon Sep 17 00:00:00 2001
From: x1unix <denis0051@gmail.com>
Date: Mon, 6 Jan 2025 13:54:13 -0500
Subject: [PATCH 9/9] chore: address jeronimoalbi complaints

---
 examples/gno.land/r/demo/boards2/post.gno           |  3 ++-
 examples/gno.land/r/demo/boards2/post_test.gno      |  6 +++---
 examples/gno.land/r/demo/boards2/public.gno         | 12 +++++++++---
 examples/gno.land/r/demo/boards2/render.gno         |  6 +++---
 examples/gno.land/r/demo/boards2/z_2_c_filetest.gno |  2 +-
 5 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/examples/gno.land/r/demo/boards2/post.gno b/examples/gno.land/r/demo/boards2/post.gno
index 2df46a57e84..5a79302af22 100644
--- a/examples/gno.land/r/demo/boards2/post.gno
+++ b/examples/gno.land/r/demo/boards2/post.gno
@@ -119,7 +119,7 @@ func (post *Post) SetVisible(isVisible bool) {
 	post.isHidden = !isVisible
 }
 
-func (post *Post) Hidden() bool {
+func (post *Post) IsHidden() bool {
 	return post.isHidden
 }
 
@@ -300,6 +300,7 @@ func (post *Post) Render(indent string, levels int) string {
 			post.replies.Iterate("", "", func(_ string, value interface{}) bool {
 				reply := value.(*Post)
 				if reply.isHidden {
+					// TODO: change this in case of pagination
 					return false
 				}
 
diff --git a/examples/gno.land/r/demo/boards2/post_test.gno b/examples/gno.land/r/demo/boards2/post_test.gno
index bab7f3de93b..232b4ea75cd 100644
--- a/examples/gno.land/r/demo/boards2/post_test.gno
+++ b/examples/gno.land/r/demo/boards2/post_test.gno
@@ -35,13 +35,13 @@ func TestPostAddFlag(t *testing.T) {
 
 func TestPostSetVisible(t *testing.T) {
 	post := createTestThread(t)
-	uassert.False(t, post.Hidden(), "post should be visible by default")
+	uassert.False(t, post.IsHidden(), "post should be visible by default")
 
 	post.SetVisible(false)
-	uassert.True(t, post.Hidden(), "post should be hidden")
+	uassert.True(t, post.IsHidden(), "post should be hidden")
 
 	post.SetVisible(true)
-	uassert.False(t, post.Hidden(), "post should be visible")
+	uassert.False(t, post.IsHidden(), "post should be visible")
 }
 
 func TestPostAddRepostTo(t *testing.T) {
diff --git a/examples/gno.land/r/demo/boards2/public.gno b/examples/gno.land/r/demo/boards2/public.gno
index afc69257430..62015f9d690 100644
--- a/examples/gno.land/r/demo/boards2/public.gno
+++ b/examples/gno.land/r/demo/boards2/public.gno
@@ -83,7 +83,7 @@ func CreateReply(bid BoardID, threadID, replyID PostID, body string) PostID {
 	} else {
 		// Try to get parent reply and add a new child reply
 		post := mustGetReply(thread, replyID)
-		assertThreadVisible(thread)
+		assertReplyVisible(post)
 
 		reply = post.AddReply(caller, body)
 	}
@@ -99,7 +99,7 @@ func FlagReply(bid BoardID, threadID, replyID PostID, reason string) {
 	thread := mustGetThread(board, threadID)
 	reply := mustGetReply(thread, replyID)
 
-	if flagItem(reply, NewFlag(caller, reason)) {
+	if hide := flagItem(reply, NewFlag(caller, reason)); hide {
 		reply.SetVisible(false)
 	}
 }
@@ -250,7 +250,13 @@ func assertReplyExists(thread *Post, replyID PostID) {
 }
 
 func assertThreadVisible(thread *Post) {
-	if thread.Hidden() {
+	if thread.IsHidden() {
 		panic("thread with ID: " + thread.GetPostID().String() + " was hidden")
 	}
 }
+
+func assertReplyVisible(thread *Post) {
+	if thread.IsHidden() {
+		panic("reply with ID: " + thread.GetPostID().String() + " was hidden")
+	}
+}
diff --git a/examples/gno.land/r/demo/boards2/render.gno b/examples/gno.land/r/demo/boards2/render.gno
index a2074aae94c..ea575bc4fb1 100644
--- a/examples/gno.land/r/demo/boards2/render.gno
+++ b/examples/gno.land/r/demo/boards2/render.gno
@@ -60,8 +60,8 @@ func renderThread(res *mux.ResponseWriter, req *mux.Request) {
 	thread, found := board.GetThread(PostID(tID))
 	if !found {
 		res.Write("Thread does not exist with ID: " + rawID)
-	} else if thread.Hidden() {
-		res.Write("Thread with ID: " + rawID + " was hidden")
+	} else if thread.IsHidden() {
+		res.Write("Thread with ID: " + rawID + " has been flagged as inappropriate")
 	} else {
 		res.Write(thread.Render("", 5))
 	}
@@ -99,7 +99,7 @@ func renderReply(res *mux.ResponseWriter, req *mux.Request) {
 	reply, found := thread.GetReply(PostID(rID))
 	if !found {
 		res.Write("Reply does not exist with ID: " + rawID)
-	} else if reply.Hidden() {
+	} else if reply.IsHidden() {
 		res.Write("Reply with ID: " + rawID + " was hidden")
 	} else {
 		res.Write(reply.RenderInner())
diff --git a/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno b/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno
index c5ef6a5e6ed..3a27b4497cd 100644
--- a/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno
+++ b/examples/gno.land/r/demo/boards2/z_2_c_filetest.gno
@@ -23,4 +23,4 @@ func main() {
 }
 
 // Error:
-// thread with ID: 2 was hidden
+// reply with ID: 2 was hidden