package com.evsuite.abrp;

/**
 * The Overview styles in the order of the Settings drop-down, the value each is stored as, and
 * how it takes colour:
 *
 * - {@link #usesAccent}: drawn in the chosen accent colour, so Settings offers the accent
 *   colour for it. Styles with only their own fixed palette (the starship console, the cartoon,
 *   the flight display, the nixie tubes) ignore it and Settings greys it out.
 * - {@link #hasOriginal}: has an original palette of its own as well (Retro's turquoise
 *   display, the terminal's green phosphor); Settings then offers "Original colours" above the
 *   accent colours, remembered per style under {@link #originalKey()}.
 *
 * Pure Java, unit-tested.
 */
enum OverviewStyle {
    TILES(true, false),
    GAUGES(true, false),
    COCKPIT(true, false),
    RETRO(true, true),
    FUTURISTIC(true, false),
    SCIFI(false, false),
    CARTOON(false, false),
    MG(true, false),
    MINIMAL(true, false),
    TERMINAL(true, true),
    NIXIE(false, false),
    CHRONOGRAPH(true, false);

    static final String PREF_KEY = "overview_style";

    final boolean usesAccent;
    final boolean hasOriginal;

    OverviewStyle(boolean usesAccent, boolean hasOriginal) {
        this.usesAccent = usesAccent;
        this.hasOriginal = hasOriginal;
    }

    /**
     * Whether the style is shown in its own palette: always for one with no accent colour, and
     * for Retro and Terminal when "Original colours" is chosen. The app then matches it
     * (StylePalette).
     */
    boolean showsOwnPalette(boolean originalChosen) {
        return !usesAccent || (hasOriginal && originalChosen);
    }

    /** Where the choice between the original palette and the accent colour is kept. */
    String originalKey() {
        return "original_colours_" + name();
    }

    /**
     * The stored style. Older values: "DASHBOARD" (Gauges before 2.22.3), and "RETRO_ACCENT" /
     * "TERMINAL_ACCENT" (separate entries before 2.27.2, now the style in the accent colour —
     * see {@link #wasAccentEntry}). Anything unknown is Tiles, including "BLUEPRINT" and
     * "MASCOT", the styles removed in 2.35.0, and "AVIATION" (2.35.1).
     */
    static OverviewStyle fromPref(String stored) {
        if ("DASHBOARD".equals(stored)) return GAUGES;
        if ("RETRO_ACCENT".equals(stored)) return RETRO;
        if ("TERMINAL_ACCENT".equals(stored)) return TERMINAL;
        for (OverviewStyle style : values()) {
            if (style.name().equals(stored)) return style;
        }
        return TILES;
    }

    /** A stored value from when the accent-coloured variant was its own entry. */
    static boolean wasAccentEntry(String stored) {
        return "RETRO_ACCENT".equals(stored) || "TERMINAL_ACCENT".equals(stored);
    }
}