# client/tests/unit/test_theme_resource.gd
extends "res://addons/gut/test.gd"

const Builder = preload("res://scripts/theme/build_game_theme.gd")
const THEME_PATH := "res://assets/theme/game_theme.tres"


func test_theme_loads():
	assert_true(FileAccess.file_exists(THEME_PATH), "theme not built — run build_game_theme.gd")
	var t = load(THEME_PATH)
	assert_true(t is Theme)


func test_every_variation_resolves():
	var t: Theme = load(THEME_PATH)
	for key in ThemeKeys.ALL:
		var base: String = ThemeKeys.ALL[key]
		assert_eq(t.get_type_variation_base(key), StringName(base),
			"variation %s missing or wrong base" % key)


func test_cta_has_normal_stylebox():
	var t: Theme = load(THEME_PATH)
	assert_true(t.has_stylebox(&"normal", ThemeKeys.PRIMARY_CTA))


func test_default_font_is_set():
	var t: Theme = load(THEME_PATH)
	assert_true(t.default_font is FontFile)


func _guarded_variations() -> Array:
	# EVERY variation the builder touches — the stylebox variations (ThemeKeys.ALL)
	# AND the six font roles (ThemeKeys.FONT_ROLES), which ALL deliberately excludes
	# by its own docstring. Iterating ALL alone left every font, font size and font
	# colour in the theme unguarded: change Palette.CREAM (TitleLogo's font colour,
	# and nothing else's), skip the rebuild, and the suite stayed green with a stale
	# .tres shipped. traps.md #12 — "covers everything" must iterate the full set.
	var out: Array = ThemeKeys.ALL.keys()
	out.append_array(ThemeKeys.FONT_ROLES.keys())
	return out


func test_the_drift_guard_covers_every_variation_the_builder_touches():
	# The guard below is only as good as the set it walks. Pin that set to the
	# builder's own output: every variation the fresh Theme carries a stylebox, a
	# font, a font size or a font colour for MUST be in _guarded_variations(), or
	# it can drift unwatched. A new variation added to the builder and forgotten in
	# ThemeKeys goes red here rather than sitting unguarded forever.
	var fresh: Theme = Builder.build_theme()
	var guarded := _guarded_variations()
	for variation in fresh.get_type_list():
		var touched := (not fresh.get_stylebox_list(variation).is_empty()
			or not fresh.get_font_list(variation).is_empty()
			or not fresh.get_font_size_list(variation).is_empty()
			or not fresh.get_color_list(variation).is_empty())
		if not touched:
			continue
		if fresh.get_type_variation_base(variation) == &"":
			continue        # a BASE type (the builder styles RichTextLabel directly), not a variation
		assert_true(variation in guarded,
			"the builder styles the variation %s but no drift guard walks it — add it to ThemeKeys.ALL or ThemeKeys.FONT_ROLES" % variation)


func test_committed_tres_matches_builder():
	# Catches "palette/builder changed but nobody regenerated game_theme.tres."
	# Preloading the builder script and calling its static build_theme() does
	# NOT run _init() (that only fires on .new()), so this is side-effect-free.
	#
	# Drives its checks off ThemeKeys.ALL *and* ThemeKeys.FONT_ROLES so every
	# variation is guarded, not just whichever three someone remembered to hardcode
	# here — and not just the stylebox half. For each variation: every stylebox
	# state, every font, every font size and every font colour the builder actually
	# set is compared. Nothing the builder never touches is asserted on.
	var fresh: Theme = Builder.build_theme()
	var committed: Theme = load(THEME_PATH)

	for variation in _guarded_variations():
		for state in fresh.get_stylebox_list(variation):
			assert_true(committed.has_stylebox(state, variation),
				"stale game_theme.tres — %s/%s stylebox is missing entirely; re-run build_game_theme.gd" % [variation, state])
			var fresh_box: StyleBox = fresh.get_stylebox(state, variation)
			var committed_box: StyleBox = committed.get_stylebox(state, variation)
			assert_eq(committed_box.get_class(), fresh_box.get_class(),
				"stale game_theme.tres — %s/%s stylebox type drifted from the builder; re-run build_game_theme.gd" % [variation, state])

			if fresh_box is StyleBoxFlat:
				var f: StyleBoxFlat = fresh_box
				var c: StyleBoxFlat = committed_box
				assert_eq(c.bg_color, f.bg_color,
					"stale game_theme.tres — %s/%s bg_color drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.border_color, f.border_color,
					"stale game_theme.tres — %s/%s border_color drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.border_width_left, f.border_width_left,
					"stale game_theme.tres — %s/%s border_width_left drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.border_width_top, f.border_width_top,
					"stale game_theme.tres — %s/%s border_width_top drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.border_width_right, f.border_width_right,
					"stale game_theme.tres — %s/%s border_width_right drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.border_width_bottom, f.border_width_bottom,
					"stale game_theme.tres — %s/%s border_width_bottom drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.corner_radius_top_left, f.corner_radius_top_left,
					"stale game_theme.tres — %s/%s corner_radius_top_left drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.corner_radius_top_right, f.corner_radius_top_right,
					"stale game_theme.tres — %s/%s corner_radius_top_right drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.corner_radius_bottom_right, f.corner_radius_bottom_right,
					"stale game_theme.tres — %s/%s corner_radius_bottom_right drifted from the builder; re-run build_game_theme.gd" % [variation, state])
				assert_eq(c.corner_radius_bottom_left, f.corner_radius_bottom_left,
					"stale game_theme.tres — %s/%s corner_radius_bottom_left drifted from the builder; re-run build_game_theme.gd" % [variation, state])

		# The FONT half — the whole reason this guard could not fail against a font
		# role. Compare the font's resource_path, not the Resource: `load()` caches,
		# so two references to the same .ttf are the same instance and `==` would be
		# true even when the builder swapped SERIF for MONO... only if the .tres
		# happened to point at the same file anyway. The path is the thing that drifts.
		for font_name in fresh.get_font_list(variation):
			assert_true(committed.has_font(font_name, variation),
				"stale game_theme.tres — %s/%s font is missing entirely; re-run build_game_theme.gd" % [variation, font_name])
			var fresh_font: Font = fresh.get_font(font_name, variation)
			var committed_font: Font = committed.get_font(font_name, variation)
			assert_eq(committed_font.resource_path, fresh_font.resource_path,
				"stale game_theme.tres — %s/%s font drifted from the builder; re-run build_game_theme.gd" % [variation, font_name])

		for size_name in fresh.get_font_size_list(variation):
			assert_true(committed.has_font_size(size_name, variation),
				"stale game_theme.tres — %s/%s font size is missing entirely; re-run build_game_theme.gd" % [variation, size_name])
			assert_eq(committed.get_font_size(size_name, variation), fresh.get_font_size(size_name, variation),
				"stale game_theme.tres — %s/%s font size drifted from the builder; re-run build_game_theme.gd" % [variation, size_name])

		for color_name in fresh.get_color_list(variation):
			assert_true(committed.has_color(color_name, variation),
				"stale game_theme.tres — %s/%s colour is missing entirely; re-run build_game_theme.gd" % [variation, color_name])
			var fresh_color: Color = fresh.get_color(color_name, variation)
			var committed_color: Color = committed.get_color(color_name, variation)
			assert_eq(committed_color, fresh_color,
				"stale game_theme.tres — %s/%s drifted from the builder; re-run build_game_theme.gd" % [variation, color_name])


func test_creation_variations_exist_with_the_states_the_screen_needs():
	var t: Theme = load(THEME_PATH)

	# A race/calling card is a Button that must show a CHOSEN state.
	assert_true(t.has_stylebox(&"normal", ThemeKeys.SELECT_CARD))
	assert_true(t.has_stylebox(&"hover", ThemeKeys.SELECT_CARD))
	assert_true(t.has_stylebox(&"pressed", ThemeKeys.SELECT_CARD), "pressed IS the chosen ring")
	assert_true(t.has_stylebox(&"disabled", ThemeKeys.SELECT_CARD), "an origin may disallow a calling")

	# A skill chip is a toggle with three states: unpicked, picked, and granted-so-inert.
	assert_true(t.has_stylebox(&"normal", ThemeKeys.SKILL_CHIP))
	assert_true(t.has_stylebox(&"pressed", ThemeKeys.SKILL_CHIP))
	assert_true(t.has_stylebox(&"disabled", ThemeKeys.SKILL_CHIP))

	# The tags and the primary ring.
	assert_true(t.has_stylebox(&"normal", ThemeKeys.CHOSEN_TAG))
	assert_true(t.has_stylebox(&"normal", ThemeKeys.PRIMARY_TAG))
	assert_true(t.has_stylebox(&"panel", ThemeKeys.PRIMARY_CARD))


func test_section_label_is_a_font_role_on_parchment():
	var t: Theme = load(THEME_PATH)
	assert_true(t.has_font(&"font", ThemeKeys.SECTION_LABEL))
	assert_eq(t.get_color(&"font_color", ThemeKeys.SECTION_LABEL), Palette.INK_LABEL_MUTED)