from PyQt5.QtCore import Qt
from PyQt5.QtGui import QPalette, QColor
import pyqtgraph as pg


WHITE = Qt.white

VIOLET = QColor("#792953")
BLUE   = QColor("#003e6e")

GREY0 = QColor(25, 25, 25) # dark
GREY1 = QColor(35, 35, 35)
GREY2 = QColor(50, 50, 50)
GREY3 = QColor(125, 125, 125)
GREY4 = QColor(200, 200, 200) # light

MDI_BKG = QColor(150, 150, 150)


def apply(app):
    apply_qapp(app)
    apply_pg()


def apply_qapp(app):
    app.setStyle("Fusion")
    pal = make_palette()
    app.setPalette(pal)


def make_palette():
    pal = QPalette()

    sc = pal.setColor
    qp = QPalette

    sc(qp.ButtonText,      WHITE)
    sc(qp.HighlightedText, WHITE)
    sc(qp.Text,            WHITE)
    sc(qp.ToolTipText,     WHITE)
    sc(qp.WindowText,      WHITE)

    sc(qp.Base,          GREY1)
    sc(qp.AlternateBase, GREY2)
    sc(qp.Window,        GREY2)
    sc(qp.Button,        GREY2)
    sc(qp.ToolTipBase,   GREY0)

    sc(qp.BrightText,  VIOLET)
    sc(qp.Highlight,   VIOLET)
    sc(qp.Link,        BLUE)
    sc(qp.LinkVisited, VIOLET)

    sc(qp.Active, qp.Button, GREY2)

    sc(qp.Disabled, qp.ButtonText, GREY3)
    sc(qp.Disabled, qp.WindowText, GREY3)
    sc(qp.Disabled, qp.Text,       GREY3)
    sc(qp.Disabled, qp.Light,      GREY2)

    return pal


def apply_pg():
    pg.setConfigOption("foreground", "w")
    pg.setConfigOption("background", GREY0)


def pg_plot_style():
    pen = pg.mkPen(
        GREY4,
        width=3
    )

    style = dict(
        pen=pen,
        symbol="o",
        symbolPen=GREY4,
        symbolBrush=VIOLET,
        symbolSize=8
    )

    return style