# client/scripts/theme/theme_showcase.gd
extends Control
## The eyeball proof for the shared Theme (spec §7). Builds every token, stylebox,
## font, surface, and bar on one scrollable screen. No AI, no state. §2: presentation.
const Palette = preload("res://scripts/theme/palette.gd")
const ThemeKeys = preload("res://scripts/theme/theme_keys.gd")
const GAME_THEME := "res://assets/theme/game_theme.tres"
const SERIF_ITALIC := "res://assets/theme/fonts/EBGaramond-Italic-VariableFont_wght.ttf"


func _ready() -> void:
	theme = load(GAME_THEME)
	set_anchors_preset(Control.PRESET_FULL_RECT)
	var scroll := ScrollContainer.new()
	scroll.set_anchors_preset(Control.PRESET_FULL_RECT)
	add_child(scroll)
	var col := VBoxContainer.new()
	col.custom_minimum_size = Vector2(1900, 0)
	col.add_theme_constant_override("separation", 16)
	scroll.add_child(col)

	col.add_child(_heading("SHARED THEME — SHOWCASE"))
	col.add_child(_swatches())
	col.add_child(_variations())
	col.add_child(_fonts())
	col.add_child(_prose())
	col.add_child(_rarity())
	col.add_child(_bars())
	col.add_child(_surfaces())


func _heading(text: String) -> Label:
	var l := Label.new()
	l.text = text
	l.theme_type_variation = ThemeKeys.HEADING
	return l


func _swatches() -> Control:
	var grid := GridContainer.new()
	grid.columns = 8
	var tokens := [
		["STAGE_1", Palette.STAGE_1], ["BAY_STRIPE_A", Palette.BAY_STRIPE_A],
		["DARK_PANEL_70", Palette.DARK_PANEL_70], ["SHEET_TOP", Palette.SHEET_TOP],
		["PARCHMENT_CARD", Palette.PARCHMENT_CARD], ["BLOOD", Palette.BLOOD],
		["GOLD", Palette.GOLD], ["STEEL", Palette.STEEL], ["GREEN", Palette.GREEN],
		["INK_BODY", Palette.INK_BODY], ["CREAM", Palette.CREAM],
	]
	for entry in tokens:
		var col := VBoxContainer.new()
		var r := ColorRect.new()
		r.color = entry[1]
		r.custom_minimum_size = Vector2(120, 60)
		col.add_child(r)
		var caption := Label.new()
		caption.text = entry[0]
		caption.theme_type_variation = ThemeKeys.MONO
		col.add_child(caption)
		grid.add_child(col)
	return grid


func _variations() -> Control:
	var row := HBoxContainer.new()
	row.add_theme_constant_override("separation", 12)
	var cta := Button.new(); cta.text = "ENTER THE WORLD"; cta.theme_type_variation = ThemeKeys.PRIMARY_CTA
	var tab := Button.new(); tab.text = "INACTIVE"; tab.theme_type_variation = ThemeKeys.TAB
	var tab_a := Button.new(); tab_a.text = "ACTIVE"; tab_a.theme_type_variation = ThemeKeys.TAB_ACTIVE
	# Neutral chip (grey) plus the semantic colours a script applies per-use
	# (spec §5.3): red for aggressive/combat actions, gold for pay/faith.
	var chip := Button.new(); chip.text = "STEALTH · DEX"; chip.theme_type_variation = ThemeKeys.CHIP
	var chip_red := _semantic_chip("INTIMIDATE · STR", Palette.BLOOD)
	var chip_gold := _semantic_chip("PAY ◈40", Palette.GOLD)
	for b in [cta, tab, tab_a, chip, chip_red, chip_gold]:
		row.add_child(b)
	var card := PanelContainer.new(); card.theme_type_variation = ThemeKeys.PARCHMENT_CARD
	card.custom_minimum_size = Vector2(160, 80)
	row.add_child(card)

	# Filled vs empty item tile, side by side for comparison.
	var tile_filled := PanelContainer.new()
	tile_filled.theme_type_variation = ThemeKeys.ITEM_TILE
	tile_filled.custom_minimum_size = Vector2(64, 64)
	row.add_child(tile_filled)
	var tile_empty := PanelContainer.new()
	tile_empty.theme_type_variation = ThemeKeys.ITEM_TILE_EMPTY
	tile_empty.custom_minimum_size = Vector2(64, 64)
	row.add_child(tile_empty)

	var inset := PanelContainer.new()
	inset.theme_type_variation = ThemeKeys.PARCHMENT_INSET
	inset.custom_minimum_size = Vector2(160, 80)
	row.add_child(inset)

	var dark := PanelContainer.new()
	dark.theme_type_variation = ThemeKeys.DARK_PANEL
	dark.custom_minimum_size = Vector2(160, 80)
	row.add_child(dark)

	return row


func _semantic_chip(text: String, color: Color) -> Button:
	# Chip base is neutral (ThemeKeys.CHIP); the semantic colour (§5.3) is set
	# by the consuming script, here via font-colour + border overrides.
	var chip := Button.new()
	chip.text = text
	chip.theme_type_variation = ThemeKeys.CHIP
	chip.add_theme_color_override("font_color", color)
	var tinted := StyleBoxFlat.new()
	tinted.bg_color = Color(color, 0.15)
	tinted.border_color = color
	tinted.set_border_width_all(1)
	tinted.set_corner_radius_all(3)
	tinted.content_margin_left = 12
	tinted.content_margin_right = 12
	tinted.content_margin_top = 6
	tinted.content_margin_bottom = 6
	chip.add_theme_stylebox_override("normal", tinted)
	return chip


func _prose() -> Control:
	# Narrative italic (spec §6) — the bundled EB Garamond italic face, shown
	# nowhere else on this screen. RichTextLabel is required for bbcode italics;
	# a plain Label cannot render [i].
	var rtl := RichTextLabel.new()
	rtl.bbcode_enabled = true
	rtl.fit_content = true
	rtl.custom_minimum_size = Vector2(900, 0)
	rtl.add_theme_font_override("normal_font", load(GAME_THEME).default_font)
	rtl.add_theme_font_override("italics_font", load(SERIF_ITALIC))
	rtl.text = "[i]The chamber is cold. Something waits in the dark.[/i]"
	return rtl


func _fonts() -> Control:
	# All three bundled font families, at their real Theme sizes, plus the
	# default serif body face (not otherwise shown elsewhere on this screen).
	var col := VBoxContainer.new()
	col.add_theme_constant_override("separation", 6)

	var body := Label.new()
	body.text = "The road to the Ashmarch is longer than the maps admit."
	col.add_child(body)

	var accent := Label.new()
	accent.text = "Vexcca of the Ashmarch"
	accent.theme_type_variation = ThemeKeys.ACCENT
	col.add_child(accent)

	var mono := Label.new()
	mono.text = "STR 14 · INITIATIVE +2 · AC 16"
	mono.theme_type_variation = ThemeKeys.MONO
	col.add_child(mono)

	return col


func _rarity() -> Control:
	var row := HBoxContainer.new()
	for i in range(5):
		var tile := PanelContainer.new()
		tile.theme_type_variation = ThemeKeys.ITEM_TILE
		tile.custom_minimum_size = Vector2(72, 72)
		var bar := ColorRect.new()
		bar.color = Palette.rarity_color(i)
		bar.custom_minimum_size = Vector2(60, 4)
		tile.add_child(bar)
		row.add_child(tile)
	return row


func _bars() -> Control:
	var row := HBoxContainer.new()
	for kind in [&"hp", &"mp", &"stamina"]:
		var pair = Palette.stat_bar(kind)
		var bar := ColorRect.new()
		bar.color = pair[0]
		bar.custom_minimum_size = Vector2(200, 18)
		row.add_child(bar)
	return row


func _surfaces() -> Control:
	var row := HBoxContainer.new()
	row.custom_minimum_size = Vector2(0, 240)
	for path in ["res://scenes/theme/surfaces/ParchmentPanel.tscn",
			"res://scenes/theme/surfaces/DarkBay.tscn"]:
		var s = load(path).instantiate()
		s.custom_minimum_size = Vector2(600, 220)
		row.add_child(s)

	# VignetteOverlay draws a black-with-alpha dim; give it a mid-tone backing
	# so the dim is visibly rendering rather than reading as empty space.
	var vignette_slot := Control.new()
	vignette_slot.custom_minimum_size = Vector2(600, 220)
	var backing := ColorRect.new()
	backing.color = Palette.STEEL
	backing.set_anchors_preset(Control.PRESET_FULL_RECT)
	vignette_slot.add_child(backing)
	var vignette = load("res://scenes/theme/surfaces/VignetteOverlay.tscn").instantiate()
	vignette.set_anchors_preset(Control.PRESET_FULL_RECT)
	vignette_slot.add_child(vignette)
	row.add_child(vignette_slot)

	return row