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halving.py
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halving.py
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#! /usr/bin/env python3
from PIL import Image, ImageColor, ImageDraw, ImageOps
from datetime import datetime
from vicariouspanel import NodeyezPanel
import glob
import json
import os
import random
import sys
import time
import vicariousbitcoin
import vicariousnetwork
import vicarioustext
class HalvingPanel(NodeyezPanel):
def __init__(self):
"""Instantiates a new Fear and Greed panel"""
# Define which additional attributes we have
self.configAttributes = {
# legacy key name mappings
"colorBackground": "backgroundColor",
"colorGrid": "gridColor",
"colorProgress": "progressColor",
"colorTextFG": "textColor",
"fillGridDividersEnabled": "gridDividerFillEnabled",
"gridImageUnmined": "gridImageUnminedMode",
"sleepInterval": "interval",
# panel specific key names
"gridColor": "gridColor",
"gridDividerFillEnabled": "gridDividerFillEnabled",
"gridImageEnabled": "gridImageEnabled",
"gridImageUnminedMode": "gridImageUnminedMode",
"progressColor": "progressColor",
}
# Define our defaults (all panel specific key names should be listed)
self._defaultattr("backgroundColor", "#000000")
self._defaultattr("gridColor", "#404040")
self._defaultattr("gridDividerFillEnabled", True)
self._defaultattr("gridImageEnabled", True)
self._defaultattr("gridImageUnminedMode", "grayscale")
self._defaultattr("headerText", "|Next Halving|?")
self._defaultattr("interval", 540)
self._defaultattr("progressColor", "#ffaa00")
self._defaultattr("watermarkAnchor", "topleft")
# Initialize
super().__init__(name="halving")
def blockclockReport(self):
baseapi=f"http://{self.blockclockAddress}/api/"
# TODO: integrate bctext
# BLOC K.... .789 000. ..IS.. .69. 420%
# OF THE WAY TO NEXT HALV ING
halvingInterval = 210000
halvings = self.blockheight // halvingInterval
halvingbegin = halvings * halvingInterval + 1
halvingPercent = float(self.blockheight - halvingbegin) / float(2100)
halvingPercentText = str(format(halvingPercent, ".3f")) + "%"
bh = str(self.blockheight)
sd = bh[-4:]
td = str("...." + bh[0:-4])[-4:]
dp = halvingPercentText[-3:]
ip = halvingPercentText[0:-3]
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/0/BLOC/OF", self.blockclockPassword)
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/1/K..../THE", self.blockclockPassword)
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/2/{td}/WAY", self.blockclockPassword)
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/3/{sd}/TO", self.blockclockPassword)
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/4/IS/NEXT", self.blockclockPassword)
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/5/{ip}/HALV", self.blockclockPassword)
vicariousnetwork.getblockclockapicall(baseapi + f"ou_text/6/{dp}%/ING..", self.blockclockPassword)
def isDependenciesMet(self):
return True
def fetchData(self):
"""Fetches all the data needed for this panel"""
self.blockheight = vicariousbitcoin.getcurrentblock()
j = vicariousbitcoin.getblock(vicariousbitcoin.getfirstblockforhalving(self.blockheight))
self.halvingBlocksMined = int(j["confirmations"]) + 1
self.halvingBeganTime = int(j["time"])
def _getGridImage(self, p):
ipfsDirectory = f"{self.dataDirectory}ipfs/"
filegood = False
if os.path.exists(ipfsDirectory):
random.seed(p * 11235813) # consistently deterministic
filegood = False
fileattempts = 5
while ((not filegood) and (fileattempts > 0)):
filename = random.choice(os.listdir(ipfsDirectory))
try:
filepath = f"{ipfsDirectory}{filename}"
filesize = os.path.getsize(filepath)
if filesize > 50000:
self.log(f"loading image file {filepath}")
rImage = Image.open(filepath).convert("RGBA")
filegood = True
except BaseException as err:
# not sure what
self.log(f"error loading image: {err}")
fileattempts = fileattempts -1
if not filegood:
rImage = Image.open("../images/logo.png").convert("RGBA")
return rImage
def run(self):
if not self.isDependenciesMet():
self._markAsRan()
return
super().startImage()
centerX = self.width // 2
centerY = self.height // 2
halvingInterval = 210000
gridRows = 35 # x 60 = 2100. 2100 is blocks for 1% of the halvingInterval
gridCols = 60
halvings = self.blockheight // halvingInterval
halvingbegin = halvings * halvingInterval + 1
halvingend = (halvings + 1) * halvingInterval
halvingPercent = float(self.blockheight - halvingbegin) / float(gridRows * gridCols)
halvingPercentText = str(format(halvingPercent, ".3f")) + "%"
self.headerText = f"|Next Halving|{halvingPercentText}"
gridblocks = self.blockheight % (gridRows * gridCols)
# grid for the current percent
blockw = ((self.width-1)//gridCols)
gridLeft= (self.width-(gridCols*blockw)) // 2
gridTop = self.getInsetTop()
gridRight = self.width - gridLeft
gridBottom = gridTop + (gridRows * blockw)
if self.gridImageEnabled:
gridw = blockw * gridCols
gridh = blockw * gridRows
gridratio=float(gridw)/float(gridh)
gridImage = self._getGridImage(int(halvingPercent))
gridImageWidth = int(gridImage.getbbox()[2])
gridImageHeight = int(gridImage.getbbox()[3])
gridImageRatio = float(gridImageWidth)/float(gridImageHeight)
if gridImageRatio > gridratio:
newgridImageHeighteight=int(gridImageWidth/gridratio)
gridImageOffset = int((newgridImageHeighteight-gridImageHeight)/2)
gridImageTaller = Image.new(mode="RGBA", size=(gridImageWidth, newgridImageHeighteight), color=ImageColor.getrgb(self.progressColor))
gridImageTaller.paste(gridImage, (0,gridImageOffset))
gridImage.close()
gridImage = gridImageTaller.resize(size=(gridw,gridh))
gridImageTaller.close()
else:
newgridImageWidthidth=int(gridImageHeight*gridratio)
gridImageOffset = int((newgridImageWidthidth-gridImageWidth)/2)
gridImageWider = Image.new(mode="RGBA", size=(newgridImageWidthidth, gridImageHeight), color=ImageColor.getrgb(self.progressColor))
gridImageWider.paste(gridImage, (gridImageOffset,0))
gridImage.close()
gridImage = gridImageWider.resize(size=(gridw,gridh))
gridImageWider.close()
gridImageUnmined = gridImage.copy()
if self.gridImageUnminedMode == 'grayscale':
gridImageUnmined = ImageOps.grayscale(gridImageUnmined)
if self.gridImageUnminedMode == 'dither':
gridImageUnmined = gridImageUnmined.convert('1')
if self.gridImageUnminedMode == 'dither2':
gridImageUnmined = gridImageUnmined.convert('L')
for dc in range(gridCols):
for dr in range(gridRows):
gridblocknum = ((dr*gridCols)+dc)+1
tlx = (gridLeft + (dc*blockw))
tly = (gridTop + (dr*blockw))
brx = tlx+blockw-2
bry = tly+blockw-2
fillcolor = None
outlinecolor = self.gridColor
if gridblocknum <= gridblocks:
fillcolor = self.progressColor
outlinecolor = None
if self.gridImageEnabled:
# crop from gridimage
gtlx = (dc*blockw)
gtly = (dr*blockw)
gbrx = gtlx+blockw-1
gbry = gtly+blockw-1
if fillcolor != self.progressColor:
gblockimg = gridImageUnmined.crop((gtlx,gtly,gbrx,gbry))
else:
if self.gridDividerFillEnabled:
gbrx += 1
gbry += 1
gblockimg = gridImage.crop((gtlx,gtly,gbrx,gbry))
# paste the part into the right spot
self.canvas.paste(gblockimg, (tlx, tly))
# cleanup resources
gblockimg.close()
# highlight current block in the grid with an outline
if gridblocknum == gridblocks:
fillcolor = None
outlinecolor = self.progressColor
self.draw.rectangle(xy=((tlx-1,tly-1),(brx+1,bry+1)),fill=fillcolor,outline=outlinecolor,width=2)
else:
if self.gridDividerFillEnabled:
brx += 1
bry += 1
self.draw.rectangle(xy=((tlx,tly),(brx,bry)),fill=fillcolor,outline=outlinecolor)
# annotation of grid representation
afs = int(self.height * 10/320)
vicarioustext.drawtoprighttext(self.draw, "grid represents 1 whole percent", afs, gridRight, gridBottom + 2, ImageColor.getrgb(self.progressColor))
# progress bar showing visual block progression
barPad = 2
barLeft = barPad
barTop = self.height - (self.getFooterHeight() * 2)
barTop = gridBottom + afs + barPad if barTop <= gridBottom + afs + barPad else barTop
barRight = self.width - self.getFooterWidth() - barPad
barBottom = self.height - barPad
# outline portion
self.draw.rounded_rectangle(xy=(barLeft,barTop,barRight,barBottom),radius=3,fill=None,outline=ImageColor.getrgb(self.gridColor),width=1)
# fill portion
barHeight = barBottom - barTop - (barPad*2)
barWidthAvailable = barRight - barLeft - (barPad*2)
barWidth = (int(float(barWidthAvailable) * halvingPercent / 100.00))
barWidthX = barLeft+barPad+barWidth
barWidthX = barRight-barPad if barWidthX > barRight - barPad else barWidthX
self.draw.rounded_rectangle(xy=(barLeft+barPad,barTop+barPad,barWidthX,barBottom-barPad),radius=3,fill=ImageColor.getrgb(self.progressColor))
# annotation of block number
blocksToGo = halvingend + 1 - self.blockheight
currentTime = int(time.time())
secondsPassed = currentTime - self.halvingBeganTime
avgBlockTime = 600 if self.halvingBeganTime == 0 else secondsPassed / self.halvingBlocksMined
secondsRemain = avgBlockTime * blocksToGo
# report the halving time
self.log(f"seconds until halving: {secondsRemain}")
theHalvingTime = int(time.time()) + secondsRemain
self.log(datetime.fromtimestamp(theHalvingTime).strftime("%A, %B, %d, %Y %I:%M:%S"))
if blocksToGo % 4 == 0:
# block height
blockText = f"BLOCK {self.blockheight}"
elif blocksToGo % 4 == 1:
# blocks to go
blockText = f"{blocksToGo} BLOCKS TO GO"
elif blocksToGo % 4 == 2:
# approximate duration until halving
yearsUntilHalving = secondsRemain // (60 * 60 * 24 * 365)
monthsUntilHalving = int(secondsRemain // (60 * 60 * 24 * 30))
weeksUntilHalving = int(secondsRemain // (60 * 60 * 24 * 7))
daysUntilHalving = int(secondsRemain // (60 * 60 * 24))
hoursUntilHalving = int(secondsRemain // (60 * 60))
if yearsUntilHalving > 1:
blockText = f"OVER {yearsUntilHalving} YEARS TO GO"
elif monthsUntilHalving == 18:
blockText = f"~ A YEAR AND A HALF TO GO"
elif monthsUntilHalving == 12:
blockText = f"~ 1 YEAR TO GO"
elif monthsUntilHalving == 6:
blockText = f"~ HALF A YEAR TO GO"
elif monthsUntilHalving > 2:
blockText = f"~ {monthsUntilHalving} MONTHS TO GO"
elif weeksUntilHalving > 2:
blockText = f"~ {weeksUntilHalving} WEEKS TO GO"
elif daysUntilHalving > 2:
blockText = f"~ {daysUntilHalving} DAYS TO GO"
elif hoursUntilHalving > 2:
blockText = f"~ {hoursUntilHalving} HOURS TO GO"
else:
blockText = f"{blocksToGo} BLOCKS TO GO"
elif blocksToGo % 4 == 3:
# approximate date of halving
if blocksToGo < 2016:
blockText = f"{blocksToGo} BLOCKS TO GO"
else:
projectedDate = datetime.fromtimestamp(currentTime + secondsRemain)
projectedDateText = projectedDate.strftime("%Y-%m-%d")
blockText = f"Halving ETA: {projectedDateText}"
blockFontSize = self.getFooterHeight()
blockFontSize, _, _ = vicarioustext.getmaxfontsize(draw=self.draw, s=blockText, maxwidth=(barWidthAvailable//2), maxheight=barHeight, isbold=True, maxfontsize=blockFontSize, minfontsize=8)
sw, sh, f = vicarioustext.gettextdimensions(draw=self.draw, s=blockText, fontsize=blockFontSize, isbold=True)
if sw < (barWidthX - barPad):
# on the progress
vicarioustext.drawrighttext(self.draw, blockText, blockFontSize, barWidthX - barPad, barTop + (barBottom-barTop)//2, ImageColor.getrgb(self.backgroundColor), True)
else:
# to the right of bar
vicarioustext.drawlefttext(self.draw, blockText, blockFontSize, barWidthX + barPad, barTop + (barBottom-barTop)//2, ImageColor.getrgb(self.progressColor), True)
# cleanup image resources
if self.gridImageEnabled:
gridImage.close()
gridImageUnmined.close()
super().finishImage()
# --------------------------------------------------------------------------------------
# Entry point if running this script directly
# --------------------------------------------------------------------------------------
if __name__ == '__main__':
p = HalvingPanel()
# If arguments were passed in, treat as a single run
if len(sys.argv) > 1:
if sys.argv[1] in ['-h','--help']:
print(f"Renders a representation of progress through the current halving period")
print(f"Usage:")
print(f"1) Call without arguments to run continuously using the configuration or defaults")
print(f"2) Pass an argument other than -h or --help to run once and exit")
else:
p.fetchData()
p.run()
exit(0)
# Continuous run
p.runContinuous()