from direct.task.Task import Task
import math
from panda3d.core import BillboardEffect, Vec3, Point3, PGButton, VBase4
from panda3d.core import DepthWriteAttrib
from direct.interval.IntervalGlobal import *
from toontown.chat.ChatBalloon import ChatBalloon
from toontown.nametag import NametagGlobals
from toontown.nametag.Nametag import Nametag
from toontown.toontowngui.Clickable3d import Clickable3d


class Nametag3d(Nametag, Clickable3d):
    SCALING_MIN_DISTANCE = 1
    SCALING_MAX_DISTANCE = 50
    SCALING_FACTOR = 0.065

    def __init__(self):
        Nametag.__init__(self)
        Clickable3d.__init__(self, 'Nametag3d')

        self.distance = 0

        self.billboardOffset = 3
        self.doBillboardEffect()

    def destroy(self):
        self.ignoreAll()

        Nametag.destroy(self)
        Clickable3d.destroy(self)

    def getUniqueName(self):
        return 'Nametag3d-' + str(id(self))

    def getChatBalloonModel(self):
        return NametagGlobals.chatBalloon3dModel

    def getChatBalloonWidth(self):
        return NametagGlobals.chatBalloon3dWidth

    def getChatBalloonHeight(self):
        return NametagGlobals.chatBalloon3dHeight

    def setBillboardOffset(self, billboardOffset):
        self.billboardOffset = billboardOffset
        self.doBillboardEffect()

    def getBillboardOffset(self):
        return self.billboardOffset

    def doBillboardEffect(self):
        billboardEffect = BillboardEffect.make(
            Vec3(0, 0, 1), True, False, self.billboardOffset, base.cam,
            Point3(0, 0, 0))
        self.contents.setEffect(billboardEffect)

    def updateClickRegion(self):
        if self.chatBalloon is not None:
            left = self.chatBalloon.center[0] - (self.chatBalloon.width/2)
            right = left + self.chatBalloon.width

            # Calculate the bottom of the region based on constants.
            # 2.4 is the padded height of a single-line message:
            bottom = NametagGlobals.chatBalloon3dHeight - 2.4
            top = bottom + self.chatBalloon.height

            self.setClickRegionFrame(left, right, bottom, top)
        elif self.panel is not None:
            centerX = (self.textNode.getLeft()+self.textNode.getRight()) / 2.0
            centerY = (self.textNode.getBottom()+self.textNode.getTop()) / 2.0

            left = centerX - (self.panelWidth/2.0)
            right = centerX + (self.panelWidth/2.0)
            bottom = centerY - (self.panelHeight/2.0)
            top = centerY + (self.panelHeight/2.0)

            self.setClickRegionFrame(left, right, bottom, top)

    def isClickable(self):
        if self.getChatText() and self.hasChatButton():
            return True
        return NametagGlobals.wantActiveNametags and Clickable3d.isClickable(self)

    def setClickState(self, clickState):
        if self.isClickable():
            self.applyClickState(clickState)
        else:
            self.applyClickState(PGButton.SInactive)

        Clickable3d.setClickState(self, clickState)

    def enterDepressed(self):
        if self.isClickable():
            base.playSfx(NametagGlobals.clickSound)

    def enterRollover(self):
        if self.isClickable() and (self.lastClickState != PGButton.SDepressed):
            base.playSfx(NametagGlobals.rolloverSound)

    def removeContents(self):
        if self.contents:
            self.contents.node().removeAllChildren()

    def update(self):
        if not self.chatBalloon:
            self.removeContents()
            Nametag.update(self)
        else:
            scaleLerp = Sequence(LerpScaleInterval(self.chatBalloon, 0.25, VBase3(0, 0, 0), blendType='easeInOut'),
                                 Wait(0.25),
                                 Func(self.removeContents),
                                 Func(Nametag.update, self))
            scaleLerp.start()

    def tick(self, task):
        distance = self.contents.getPos(base.cam).length()

        if distance < self.SCALING_MIN_DISTANCE:
            distance = self.SCALING_MIN_DISTANCE
        elif distance > self.SCALING_MAX_DISTANCE:
            distance = self.SCALING_MAX_DISTANCE

        if distance != self.distance:
            self.contents.setScale(math.sqrt(distance) * self.SCALING_FACTOR)
            self.distance = distance

        self.updateClickRegion()

        return Task.cont

    def drawChatBalloon(self, model, modelWidth, modelHeight):
        if self.chatFont is None:
            # We can't draw this without a font.
            return

        if self.isClickable():
            foreground, background = self.chatColor[self.clickState]
        else:
            foreground, background = self.chatColor[PGButton.SInactive]
        if self.chatType == NametagGlobals.SPEEDCHAT:
            background = self.speedChatColor
        if background[3] > self.CHAT_BALLOON_ALPHA:
            background = VBase4(
                background[0], background[1], background[2],
                self.CHAT_BALLOON_ALPHA)
        self.chatBalloon = ChatBalloon(
            model, modelWidth, modelHeight, self.chatTextNode,
            foreground=foreground, background=background,
            reversed=self.chatReversed,
            button=self.chatButton[self.clickState])
        self.chatBalloon.setScale(0)
        self.chatBalloon.reparentTo(self.contents)
        scaleLerp = Sequence(Wait(0.15), LerpScaleInterval(self.chatBalloon, 0.25, VBase3(1, 1, 1), blendType='easeInOut'))
        scaleLerp.start()

    def drawNametag(self):
        if self.font is None:
            # We can't draw this without a font.
            return

        # Attach the icon:
        if self.icon is not None:
            self.contents.attachNewNode(self.icon)

        if self.isClickable():
            foreground, background = self.nametagColor[self.clickState]
        else:
            foreground, background = self.nametagColor[PGButton.SInactive]

        # Set the color of the TextNode:
        self.textNode.setTextColor(foreground)

        # Attach the TextNode:
        textNodePath = self.contents.attachNewNode(self.textNode, 1)
        textNodePath.setTransparency(foreground[3] < 1)
        textNodePath.setAttrib(DepthWriteAttrib.make(0))
        textNodePath.setY(self.TEXT_Y_OFFSET)

        # Attach a panel behind the TextNode:
        self.panel = NametagGlobals.cardModel.copyTo(self.contents, 0)
        self.panel.setColor(background)
        self.panel.setTransparency(background[3] < 1)

        # Reposition the panel:
        x = (self.textNode.getLeft()+self.textNode.getRight()) / 2.0
        z = (self.textNode.getBottom()+self.textNode.getTop()) / 2.0
        self.panel.setPos(x, 0, z)

        # Resize the panel:
        self.panelWidth = self.textNode.getWidth() + self.PANEL_X_PADDING
        self.panelHeight = self.textNode.getHeight() + self.PANEL_Z_PADDING
        self.panel.setScale(self.panelWidth, 1, self.panelHeight)
