package game

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"

	"thehouseoficarus/internal/casino"
)

// lookOutput polls the queued session writer until the look output has
// settled (no growth across two samples), then returns it, ANSI-stripped.
func lookOutput(t *testing.T, conn *chanConn) string {
	t.Helper()
	last := 0
	stable := 0
	for stable < 2 {
		n := len(conn.Bytes())
		if n == last {
			stable++
		} else {
			stable = 0
			last = n
		}
		time.Sleep(10 * time.Millisecond)
	}
	return stripANSI(string(conn.Bytes()))
}

// TestLookAtTableShowsGameStateAndHints covers feature 1 with the full
// production harness: a seated player's look shows the room first, then the
// game table, then the current hint commands — rules always, list when the
// game has multiple wagers.
func TestLookAtTableShowsGameStateAndHints(t *testing.T) {
	h := newHarness(t)
	h.seedAccount("alice")
	h.seedCharacter("alice", "alice")
	sess, conn := h.connect("alice")

	// Add a casino room and move there.
	room := "id: 4\nname: Simplified Salon\ncasino_tables:\n  - id: simple\n    game: craps\n    craps:\n      variant: simplified\n"
	path := filepath.Join(h.dir, "rooms", "4.yaml")
	if err := os.WriteFile(path, []byte(room), 0644); err != nil {
		t.Fatal(err)
	}
	h.g.World.AddRoomPath(4, path)
	sess.Player.RoomID = 4
	h.hub.EnterRoom(sess, 4)

	cfg := casino.TableConfig{ID: "simple", Game: casino.GameCraps, Craps: casino.CrapsConfig{Variant: "simplified"}}
	h.g.Casino.Join(4, cfg, "alice")
	h.g.executeLook(sess, nil, "look")
	text := lookOutput(t, conn)
	if !strings.Contains(text, "Simplified Salon") {
		t.Fatalf("look lost the room: %q", text)
	}
	if !strings.Contains(strings.ToUpper(text), "SIMPLIFIED CRAPS") || !strings.Contains(text, "Limits") {
		t.Fatalf("look missing the table state: %q", text)
	}
	if !strings.Contains(text, "rules") {
		t.Fatalf("look missing the rules hint: %q", text)
	}
}

// TestLookStandingShowsFixtureOnly: an unseated player's look keeps the
// plain room listing (no game state block).
func TestLookStandingShowsFixtureOnly(t *testing.T) {
	h := newHarness(t)
	h.seedAccount("alice")
	h.seedCharacter("alice", "alice")
	sess, conn := h.connect("alice")
	room := "id: 4\nname: Simplified Salon\ncasino_tables:\n  - id: simple\n    game: craps\n    craps:\n      variant: simplified\n"
	path := filepath.Join(h.dir, "rooms", "4.yaml")
	if err := os.WriteFile(path, []byte(room), 0644); err != nil {
		t.Fatal(err)
	}
	h.g.World.AddRoomPath(4, path)
	sess.Player.RoomID = 4
	h.hub.EnterRoom(sess, 4)
	h.g.executeLook(sess, nil, "look")
	text := lookOutput(t, conn)
	if strings.Contains(text, "bet <amount>") {
		t.Fatalf("standing look leaked a betting menu: %q", text)
	}
	if !strings.Contains(text, "play craps") {
		t.Fatalf("standing look missing the play hint: %q", text)
	}
}