pragma Singleton

import QtQuick

/**
 * The design tokens, shared with the web app's `tokens.ts`.
 *
 * Kadence reads like a well-set page rather than a dashboard: warm paper, ink
 * type, hairline rules instead of boxes and shadows, one warm accent. Light and
 * dark follow the desktop's own colour scheme.
 */
QtObject {
    id: theme

    property SystemPalette system: SystemPalette { colorGroup: SystemPalette.Active }

    // The session decides; we only read it.
    readonly property bool dark: system.window.hslLightness < 0.5

    readonly property color paper:   dark ? "#121110" : "#FAF7F2"
    readonly property color surface: dark ? "#1A1917" : "#FFFFFF"
    readonly property color sunken:  dark ? "#201E1B" : "#F3EFE8"
    readonly property color ink:     dark ? "#F4F1EA" : "#17150F"
    readonly property color muted:   dark ? "#A79F93" : "#6E675B"
    readonly property color faint:   dark ? "#776F64" : "#9A9388"
    readonly property color rule:    dark ? Qt.rgba(0.96, 0.95, 0.92, 0.14) : Qt.rgba(0.09, 0.08, 0.06, 0.12)
    readonly property color ember:   dark ? "#E0724A" : "#B4441E"
    readonly property color pine:    dark ? "#6FB394" : "#2F6B55"
    readonly property color amber:   dark ? "#D9A441" : "#8A6200"
    readonly property color clay:    dark ? "#E07A6E" : "#A33A2E"

    // Chart colours are the validated data palette, not the brand accent —
    // a chart has to stay readable for colour-blind readers in both themes.
    readonly property color work:       dark ? "#d95926" : "#eb6834"
    readonly property color shortBreak: dark ? "#3987e5" : "#2a78d6"
    readonly property color longBreak:  dark ? "#199e70" : "#1baf7a"
    readonly property var sequential: dark
        ? ["#104281", "#184f95", "#256abf", "#3987e5", "#6da7ec", "#9ec5f4"]
        : ["#cde2fb", "#9ec5f4", "#6da7ec", "#3987e5", "#256abf", "#184f95"]

    // QML's `font.family` takes one name, so the preference list is resolved
    // once against what is actually installed on this machine.
    function pickFamily(candidates) {
        var available = Qt.fontFamilies()
        for (var i = 0; i < candidates.length; i++)
            if (available.indexOf(candidates[i]) >= 0)
                return candidates[i]
        return candidates[candidates.length - 1]
    }

    readonly property string displayFamily: pickFamily(
        ["Fraunces", "Noto Serif", "DejaVu Serif", "Liberation Serif", "Georgia", "serif"])
    readonly property string sansFamily: pickFamily(
        ["Inter", "Noto Sans", "DejaVu Sans", "Liberation Sans", "sans-serif"])
    readonly property string monoFamily: pickFamily(
        ["JetBrains Mono", "Noto Sans Mono", "DejaVu Sans Mono", "Liberation Mono", "monospace"])

    readonly property int radius: 12
    readonly property int gap: 12
    readonly property int pad: 18

    function kindColor(kind) {
        if (kind === "short_break") return shortBreak
        if (kind === "long_break") return longBreak
        return work
    }

    function kindLabel(kind) {
        if (kind === "short_break") return "Short break"
        if (kind === "long_break") return "Long break"
        return "Focus"
    }

    // Mirrors the web app's humanMinutes() in lib/format.ts, so "125m" reads
    // as "2h 5m" here too.
    function humanMinutes(minutes) {
        var rounded = Math.round(minutes)
        var hours = Math.floor(rounded / 60)
        var rest = rounded % 60
        if (hours && rest) return hours + "h " + rest + "m"
        if (hours) return hours + "h"
        return rest + "m"
    }
}