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package game
// Regression: picking up a stackable item must merge into an existing stack
// even when every inventory slot is occupied — capacity is required only
// when a NEW slot is needed, matching the get-all paths.
import (
"path/filepath"
"testing"
"thehouseoficarus/internal/net"
"thehouseoficarus/internal/player"
)
func TestPickupMergesIntoFullInventory(t *testing.T) {
h := newHarness(t)
h.seedAccount("alice")
p := h.seedCharacter("alice", "alice")
writeSeedFile(t, filepath.Join(h.dir, "items", "chips.yaml"), []byte("id: chips\nname: chips\nstackable: true\n"))
sess := &net.Session{Conn: newChanConn(), Player: p}
sess.SetState(net.StateGame)
h.g.RunOnOwner(func() {
h.g.ItemStore.Reload(h.dir)
for i := 0; i < 28; i++ {
p.SetInvSlot(i, &player.InventorySlot{ItemID: "filler", Quantity: 1})
}
p.SetInvSlot(0, &player.InventorySlot{ItemID: "chips", Quantity: 10})
h.g.World.AddGroundItem(1, "chips", 5)
h.g.doGet(sess, "chips")
if got := countChips(p); got != 15 {
t.Errorf("pickup rejected despite existing chip stack: have %d, want 15", got)
}
})
}
func TestPickupFullInventoryWithoutStackStillRefused(t *testing.T) {
h := newHarness(t)
h.seedAccount("alice")
p := h.seedCharacter("alice", "alice")
writeSeedFile(t, filepath.Join(h.dir, "items", "chips.yaml"), []byte("id: chips\nname: chips\nstackable: true\n"))
sess := &net.Session{Conn: newChanConn(), Player: p}
sess.SetState(net.StateGame)
h.g.RunOnOwner(func() {
h.g.ItemStore.Reload(h.dir)
for i := 0; i < 28; i++ {
p.SetInvSlot(i, &player.InventorySlot{ItemID: "filler", Quantity: 1})
}
h.g.World.AddGroundItem(1, "chips", 5)
h.g.doGet(sess, "chips")
if got := countChips(p); got != 0 {
t.Errorf("pickup without an existing stack must be refused, have %d", got)
}
if got := h.g.World.GroundItems(1)["chips"]; got != 5 {
t.Errorf("refused pickup must leave the ground stack intact, have %d", got)
}
})
}
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