Merge pull request 'PNG poster maker' (#20) from hugo/website2:poster into master

Reviewed-on: Decentrala/website#20

.gitignore

@@ -5,5 +5,7 @@ site/atom_blog.xml
 site/atom_events.xml
 poster.html
 poster.pdf
+poster_light.png
+poster_dark.png
 http.access.log
 http.error.log

image_poster.py

@@ -0,0 +1,89 @@
+#! /usr/bin/env python
+
+import freetype
+import io
+from PIL import Image, ImageDraw, ImageFont
+import csv
+import datetime as dt
+from dateutil import relativedelta
+
+CURRENT_TIME = dt.date.today()
+NEXT_MONTH = CURRENT_TIME
+DAYS_OF_WEEK_SR = ("PON", "UTO", "SRE", "ČET", "PET", "SUB", "NED")
+MONTHS_SR = ("Januar", "Februar", "Mart", "April", "Maj", "Jun", "Jul", "Avgust",\
+            "Septembar", "Oktobar", "Novembar", "Decembar")
+
+
+def load_events(csv_path:str) -> list[dict]:
+    events = []
+    with open(csv_path) as csv_file:
+        csv_reader = csv.reader(csv_file)
+        next(csv_reader, None)
+        for event in csv_reader:
+            event_date = event[0]
+            event_date_parsed = dt.datetime.strptime(event_date, "%d-%m-%Y").date()
+            event_time = event[1]
+            event_title = event[3]
+            current_event = {"date":event_date_parsed,
+                             "time":event_time,
+                             "title":event_title.strip()}
+            if event_date_parsed >= NEXT_MONTH:
+                events.append(current_event)
+        return events
+
+def drawPoster(events, bg, fg):
+    fontFacade = ImageFont.truetype('./site/font/Facade-Sud.woff', size=110)
+    fontIosevka = ImageFont.truetype('./site/font/iosevka-regular.woff', size=60)
+    fontIosevkaSmall = ImageFont.truetype('./site/font/iosevka-regular.woff', size=45)
+
+    W = 1200
+    H = 1500 
+    img = Image.new('RGB', (W, H), bg)
+    draw = ImageDraw.Draw(img)
+
+    header = "DECENTRALA"
+    _, _, w, _ = draw.textbbox((0, 0), header, font=fontFacade)
+    draw.text(((W-w)/2, 120), header, font=fontFacade, fill=fg)
+
+    subheader = f"Plan za {MONTHS_SR[NEXT_MONTH.month - 1]}"
+    _, _, w, _ = draw.textbbox((0, 0), subheader, font=fontIosevka)
+    draw.text(((W-w)/2, 240), subheader, font=fontIosevka, fill=fg)
+
+    height = 410
+
+    for event in events:
+        date = DAYS_OF_WEEK_SR[event["date"].weekday()]
+        day = event["date"].day
+        title = event["title"]
+        pad = " " if event["date"].day < 10 else ""
+        eventText = f"{date} {day}. {pad} {title}"
+        draw.text((120, height), eventText, font=fontIosevkaSmall, fill=fg)
+        height += 70
+
+    def drawCircle(x, y):
+        r = 10
+        draw.ellipse((x - r, y - r, x + r, y+r), fill=fg, outline=(0, 0, 0), width=0)
+
+    LCX = 950 # logo center x
+    LCY = 1200 # logo center y
+    d = 50 # delta
+    drawCircle(LCX - d, LCY)
+    drawCircle(LCX, LCY)
+    drawCircle(LCX, LCY - d)
+    drawCircle(LCX, LCY + d)
+    drawCircle(LCX + d, LCY)
+
+    draw.line([(LCX - d, LCY), (LCX + d, LCY)], fill=fg, width=5, joint=None)
+    draw.line([(LCX, LCY), (LCX, LCY + d), (LCX + d, LCY), (LCX, LCY - d)], fill=fg, width=5, joint=None)
+    draw.text((LCX - 1.7*d, LCY + 1.5*d), "dmz.rs", font=fontIosevka, fill=fg)
+
+    return img
+
+
+events = load_events("dogadjaji.csv")
+
+img = drawPoster(events, (0, 0, 0), (20, 250, 50))
+img.save('poster_dark.png')
+
+img = drawPoster(events, (255, 255, 255), (0, 0, 0))
+img.save('poster_light.png')