import Toybox.Lang;
import Toybox.Application;

// Every stored preference in one place, with the defaults that reproduce the
// design comps.  Keys match resources/settings/properties.xml.
//
// Properties.getValue returns null for a key the watch has not stored yet --
// a fresh install, or a setting added by an update -- so every read falls back
// to the default rather than trusting the stored value.
module Settings {

    // Field ids follow https://watchface.io/docs/datafields.
    const DEF_LEFT_TOP     = 712;   // sunrise
    const DEF_RIGHT_TOP    = 639;   // forecast high / low
    const DEF_BOTTOM_LEFT  = 3;     // distance
    const DEF_BOTTOM_RIGHT = 1;     // steps

    function number(key as String, def as Number) as Number {
        var v = Application.Properties.getValue(key);
        if (v == null) { return def; }
        return v as Number;
    }

    function bool(key as String, def as Boolean) as Boolean {
        var v = Application.Properties.getValue(key);
        if (v == null) { return def; }
        return v as Boolean;
    }

    function text(key as String) as String {
        var v = Application.Properties.getValue(key);
        if (v == null) { return ""; }
        return v.toString();
    }

    // Theme index, clamped into range in case a stored value outlives a
    // release that removed a theme.
    function themeIndex(count as Number) as Number {
        var i = number("Theme", 1) - 1;
        if (i < 0 || i >= count) { return 0; }
        return i;
    }

    function leftTop() as Number { return number("LeftTop", DEF_LEFT_TOP); }
    function rightTop() as Number { return number("RightTop", DEF_RIGHT_TOP); }
    function bottomLeft() as Number { return number("BottomLeft", DEF_BOTTOM_LEFT); }
    function bottomRight() as Number { return number("BottomRight", DEF_BOTTOM_RIGHT); }

    function ringTR() as Number { return number("RingTR", 0); }
    function ringTL() as Number { return number("RingTL", 1); }
    function ringBR() as Number { return number("RingBR", 4); }
    function ringBL() as Number { return number("RingBL", 3); }

    function tempUnit() as Number { return number("TempUnit", 0); }

    function showTop() as Boolean { return bool("ShowTop", true); }
    function showBand() as Boolean { return bool("ShowBand", true); }
    function showBottom() as Boolean { return bool("ShowBottom", true); }
}