#include "Theme.hpp"

namespace jdi
{

	namespace
	{
		// Solarised Light 基础色板。
		const std::uint32_t kBase03 = 0x002B36u;	// #002B36
		const std::uint32_t kBase02 = 0x073642u;	// #073642
		const std::uint32_t kBase01 = 0x586E75u;	// #586E75
		const std::uint32_t kBase00 = 0x657B83u;	// #657B83
		const std::uint32_t kBase0 = 0x839496u;		// #839496
		const std::uint32_t kBase1 = 0x93A1A1u;		// #93A1A1
		const std::uint32_t kBase2 = 0xEEE8D5u;		// #EEE8D5
		const std::uint32_t kBase3 = 0xFDF6E3u;		// #FDF6E3

		// Solarised 强调色。
		const std::uint32_t kYellow = 0xB58900u;	// #B58900
		const std::uint32_t kOrange = 0xCB4B16u;	// #CB4B16
		const std::uint32_t kRed = 0xDC322Fu;		// #DC322F
		const std::uint32_t kMagenta = 0xD33682u;	// #D33682
		const std::uint32_t kViolet = 0x6C71C4u;	// #6C71C4
		const std::uint32_t kBlue = 0x268BD2u;		// #268BD2
		const std::uint32_t kCyan = 0x2AA198u;		// #2AA198
		const std::uint32_t kGreen = 0x859900u;		// #859900

		/** @brief 波形默认配色，按视觉对比度排序。 */
		const std::uint32_t kSignalPalette[] = {
		    MakeArgb(kBlue),	MakeArgb(kGreen),	MakeArgb(kRed),		MakeArgb(kViolet),
		    MakeArgb(kYellow),	MakeArgb(kCyan),	MakeArgb(kMagenta),	MakeArgb(kOrange),
		    MakeArgb(kBase01),	MakeArgb(kBase0),
		};

		/** @brief 全局唯一主题实例。 */
		const Theme kSolarizedLight = []
		{
			Theme theme;
			theme.windowBg = MakeArgb(kBase3);
			theme.toolbarBg = MakeArgb(kBase2);
			theme.panelBg = MakeArgb(kBase2);
			theme.cardBg = MakeArgb(kBase3);
			theme.plotBg = MakeArgb(kBase3);
			theme.border = MakeArgb(0xD9D1BCu);
			theme.borderStrong = MakeArgb(kBase1);

			theme.text = MakeArgb(kBase00);
			theme.textStrong = MakeArgb(kBase02);
			theme.textMuted = MakeArgb(kBase1);
			theme.textOnAccent = MakeArgb(kBase3);

			theme.accent = MakeArgb(kBlue);
			theme.accentSoft = MakeArgb(0xCFE4F3u);
			theme.hover = MakeArgb(0xE4DCC6u);
			theme.pressed = MakeArgb(0xD8CFB6u);
			theme.selection = MakeArgb(0xDCEAF6u);

			// 网格线需要在绘图区底色（kBase3）上清晰可辨，同时又要与网格边界
			// （axisLine/borderStrong 的蓝灰）明显区分——因此采用偏暖的加深米色。
			theme.gridWeak = MakeArgb(0xDDD3B8u);
			theme.gridStrong = MakeArgb(0xC3B896u);
			theme.axisLine = MakeArgb(kBase1);
			theme.cursor = MakeArgb(kOrange);
			theme.readoutBg = MakeArgb(0xF6EFDCu);
			theme.danger = MakeArgb(kRed);
			theme.warning = MakeArgb(kYellow);
			return theme;
		}();

		/**
		 * @brief 浅色主题（参考 VS Code 2026 的默认浅色配色）。
		 *
		 * 与 Solarised Light 的区别：底色是**中性白/浅灰**而不是暖米色，
		 * 强调色是 VS Code 的系统蓝 `#0078D4`，描边是中性灰。
		 */
		const Theme kLight = []
		{
			Theme theme;
			theme.windowBg = MakeArgb(0xFFFFFFu);	// editor.background
			theme.toolbarBg = MakeArgb(0xF8F8F8u);	// titleBar/sideBar
			theme.panelBg = MakeArgb(0xF8F8F8u);
			theme.cardBg = MakeArgb(0xFFFFFFu);
			theme.plotBg = MakeArgb(0xFFFFFFu);
			theme.border = MakeArgb(0xE5E5E5u);		// panel.border
			theme.borderStrong = MakeArgb(0xCECECEu);

			theme.text = MakeArgb(0x3B3B3Bu);		// foreground
			theme.textStrong = MakeArgb(0x1F1F1Fu);
			theme.textMuted = MakeArgb(0x8B8B8Bu);	// descriptionForeground
			theme.textOnAccent = MakeArgb(0xFFFFFFu);

			theme.accent = MakeArgb(0x0078D4u);		// button.background
			theme.accentSoft = MakeArgb(0xE5F1FBu);
			theme.hover = MakeArgb(0xF2F2F2u);		// list.hoverBackground
			theme.pressed = MakeArgb(0xE8E8E8u);
			theme.selection = MakeArgb(0xE8E8E8u);

			// 白底上网格线必须够淡（否则抢波形），但主刻线要能与次级线区分。
			theme.gridWeak = MakeArgb(0xEDEDEDu);
			theme.gridStrong = MakeArgb(0xD6D6D6u);
			theme.axisLine = MakeArgb(0xCECECEu);
			theme.cursor = MakeArgb(0xD18616u);		// VS Code charts.orange
			theme.readoutBg = MakeArgb(0xF3F3F3u);
			theme.danger = MakeArgb(0xE51400u);		// errorForeground
			theme.warning = MakeArgb(0xBF8803u);
			return theme;
		}();

		/**
		 * @brief 深色主题（参考 VS Code Dark+）。
		 */
		const Theme kDark = []
		{
			Theme theme;
			theme.windowBg = MakeArgb(0x1E1E1Eu);	// editor.background
			theme.toolbarBg = MakeArgb(0x252526u);	// sideBar.background
			theme.panelBg = MakeArgb(0x252526u);
			theme.cardBg = MakeArgb(0x2D2D30u);
			theme.plotBg = MakeArgb(0x1E1E1Eu);
			theme.border = MakeArgb(0x3C3C3Cu);
			theme.borderStrong = MakeArgb(0x4A4A4Au);

			theme.text = MakeArgb(0xCCCCCCu);
			theme.textStrong = MakeArgb(0xFFFFFFu);
			theme.textMuted = MakeArgb(0x8C8C8Cu);
			theme.textOnAccent = MakeArgb(0xFFFFFFu);

			theme.accent = MakeArgb(0x007ACCu);		// focusBorder / statusBar
			theme.accentSoft = MakeArgb(0x094771u);	// list.activeSelectionBackground
			theme.hover = MakeArgb(0x2A2D2Eu);		// list.hoverBackground
			theme.pressed = MakeArgb(0x37373Du);
			theme.selection = MakeArgb(0x04395Eu);

			theme.gridWeak = MakeArgb(0x2B2B2Bu);
			theme.gridStrong = MakeArgb(0x3A3A3Au);
			theme.axisLine = MakeArgb(0x4A4A4Au);
			theme.cursor = MakeArgb(0xD18616u);
			theme.readoutBg = MakeArgb(0x2D2D30u);
			theme.danger = MakeArgb(0xF44747u);
			theme.warning = MakeArgb(0xCCA700u);
			return theme;
		}();

		/**
		 * @brief Solarised Dark（参考 VS Code 的 Solarized Dark）。
		 *
		 * 底色用 base03、面板用 base02，强调色仍是 Solarised 那一套 —— 因此波形配色表
		 * （`SignalPalette`）与 Solarised Light 完全一致。
		 */
		const Theme kSolarizedDark = []
		{
			Theme theme;
			theme.windowBg = MakeArgb(kBase03);
			theme.toolbarBg = MakeArgb(kBase02);
			theme.panelBg = MakeArgb(kBase02);
			theme.cardBg = MakeArgb(kBase03);
			theme.plotBg = MakeArgb(kBase03);
			theme.border = MakeArgb(0x18505Fu);
			theme.borderStrong = MakeArgb(kBase01);

			theme.text = MakeArgb(kBase0);
			theme.textStrong = MakeArgb(kBase1);
			theme.textMuted = MakeArgb(kBase01);
			theme.textOnAccent = MakeArgb(kBase03);

			theme.accent = MakeArgb(kBlue);
			theme.accentSoft = MakeArgb(0x12414Fu);
			theme.hover = MakeArgb(0x10505Fu);
			theme.pressed = MakeArgb(0x0A3F4Cu);
			theme.selection = MakeArgb(0x12414Fu);

			theme.gridWeak = MakeArgb(0x0B3A46u);
			theme.gridStrong = MakeArgb(0x14495Au);
			theme.axisLine = MakeArgb(kBase01);
			theme.cursor = MakeArgb(kOrange);
			theme.readoutBg = MakeArgb(kBase02);
			theme.danger = MakeArgb(kRed);
			theme.warning = MakeArgb(kYellow);
			return theme;
		}();

		/** @brief 全局「当前主题」指针（由宿主设置，见 `SetCurrentTheme`）。 */
		const Theme* g_currentTheme = &kSolarizedLight;
	}

	const Theme& ThemeFor(ThemeKind kind)
	{
		switch (kind)
		{
		case ThemeKind::LIGHT:
			return kLight;
		case ThemeKind::DARK:
			return kDark;
		case ThemeKind::SOLARIZED_DARK:
			return kSolarizedDark;
		case ThemeKind::SOLARIZED_LIGHT:
		default:
			return kSolarizedLight;
		}
	}

	const wchar_t* ThemeName(ThemeKind kind)
	{
		switch (kind)
		{
		case ThemeKind::LIGHT:
			return L"Light";
		case ThemeKind::DARK:
			return L"Dark";
		case ThemeKind::SOLARIZED_DARK:
			return L"Solarised Dark";
		case ThemeKind::SOLARIZED_LIGHT:
		default:
			return L"Solarised Light";
		}
	}

	const Theme& CurrentTheme()
	{
		return (g_currentTheme != nullptr) ? *g_currentTheme : kSolarizedLight;
	}

	void SetCurrentTheme(const Theme* theme)
	{
		g_currentTheme = (theme != nullptr) ? theme : &kSolarizedLight;
	}

	const std::uint32_t* SignalPalette(int& count)
	{
		count = static_cast<int>(sizeof(kSignalPalette) / sizeof(kSignalPalette[0]));
		return kSignalPalette;
	}

} // namespace jdi