-- states/keybindings_menu.lua — the rebinding screen.
--
-- Two panels side by side, with focus in exactly one of them:
--   left  -- the command list ("Menu – accept")
--   right -- the keys currently bound to it, plus an "Add a new key" row
--
-- `currentlyActiveWindow` says which panel has focus, and both panels have their
-- own selection index. Announcing the wrong panel's row would be actively
-- misleading here, since the two lists are unrelated.
--
-- NOTE: this state is in hotkeys.lua's textEntryStates, so our own hotkeys stay
-- out of the way while it is capturing raw keys for rebinding.

local lastPanel

return {
	read = function(stateTable, menus)
		local panel = menus.getAnyUpvalue(stateTable, "currentlyActiveWindow")

		if type(panel) ~= "string" then
			return nil, nil
		end

		local parts = {}

		if panel ~= lastPanel then
			lastPanel = panel
			parts[#parts + 1] = (panel == "left") and "Commands" or "Keys"
		end

		local entry, index, total

		if panel == "left" then
			local data = menus.getAnyUpvalue(stateTable, "displayData")
			index = menus.getAnyUpvalue(stateTable, "currentSelectedOptionLeft")
			if type(data) == "table" and type(index) == "number" then
				entry, total = data[index], #data
			end
		else
			local data = menus.getAnyUpvalue(stateTable, "rightPanelDisplayData")
			index = menus.getAnyUpvalue(stateTable, "currentSelectedOptionRight")
			if type(data) == "table" and type(index) == "number" then
				entry, total = data[index], #data
			end
		end

		if not entry then
			return nil, nil
		end

		parts[#parts + 1] = entry.description or entry.scancode or "?"
		parts[#parts + 1] = index .. " of " .. total

		return table.concat(parts, ", "),
			table.concat({panel, tostring(index), tostring(total)}, ":")
	end,
}