diff --git a/postoffice/README b/postoffice/README
index 633aa94..52ab938 100644
--- a/postoffice/README
+++ b/postoffice/README
@@ -16,3 +16,4 @@ Requirements:
License:
- included code CC-0
- matplotlib Copyright (c) 2012- Matplotlib Development Team; All Rights Reserved
+ - Jinja2 Copyright 2007 Pallets, used under BSD-3-Clause License
\ No newline at end of file
diff --git a/postoffice/post_office_jinja/__init__.py b/postoffice/post_office_jinja/__init__.py
new file mode 100644
index 0000000..1431f76
--- /dev/null
+++ b/postoffice/post_office_jinja/__init__.py
@@ -0,0 +1,84 @@
+import collections
+import csv
+import dataclasses
+import datetime
+import pathlib
+import sys
+from html_minifier.minify import Minifier
+from bs4 import BeautifulSoup as bs
+import jinja2
+
+LOW = 13
+HIGH = 15
+
+
+@dataclasses.dataclass
+class Postbox:
+ owner: str | None
+ x: int
+ y: int
+ z: int
+
+ def to_dict(self):
+ return vars(self)
+
+
+def main():
+ env = jinja2.Environment(loader=jinja2.PackageLoader("post_office_jinja"))
+
+ postboxes = get_postboxes("data.csv")
+ postbox_map = collections.defaultdict(lambda: collections.defaultdict(dict))
+ for box in postboxes:
+ postbox_map[box.x][box.y][box.z] = box
+
+ minx, maxx, minz, maxz = get_limits(postboxes)
+
+ entries = []
+
+ for z in range(minz, maxz + 1):
+ superrow = []
+ for y in (HIGH, LOW):
+ row = []
+ for x in range(minx, maxx + 1):
+ try:
+ pb: Postbox = postbox_map[x][y][z]
+ row.append(pb)
+ except KeyError:
+ row.append(Postbox(None, x, y, z))
+ superrow.append(row)
+ entries.append(superrow)
+
+ tpl = env.get_template("postbox.j2.html")
+ dat = tpl.render(postboxes=entries, today=datetime.date.today().isoformat())
+
+ minifier = Minifier(dat)
+ dat = minifier.minify()
+
+ soup = bs(dat, features="html.parser")
+ dat = soup.prettify()
+
+ with open("out.html", "wt", encoding="utf-8") as fw:
+ fw.write(dat)
+
+
+def get_postboxes(fname):
+ postboxes = []
+
+ with open(fname, "rt", newline="") as fr:
+ for line in csv.reader(fr):
+ x, y, z, owner = line
+ pb = Postbox(owner, int(x), int(y), int(z))
+ postboxes.append(pb)
+
+ return postboxes
+
+
+def get_limits(postboxes):
+ minz, maxz = min([pb.z for pb in postboxes]), max([pb.z for pb in postboxes])
+ minx, maxx = min([pb.x for pb in postboxes]), max([pb.x for pb in postboxes])
+
+ return minx, maxx, minz, maxz
+
+
+if __name__ == "__main__":
+ main()
diff --git a/postoffice/post_office_jinja/templates/__init__.py b/postoffice/post_office_jinja/templates/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/postoffice/post_office_jinja/templates/postbox.j2.html b/postoffice/post_office_jinja/templates/postbox.j2.html
new file mode 100644
index 0000000..ba21772
--- /dev/null
+++ b/postoffice/post_office_jinja/templates/postbox.j2.html
@@ -0,0 +1,40 @@
+
+
+
+
+Haven Post Office layout
+
+
+
+
Haven Post Office
+
{{ today }}
+
+ {% for X in postboxes %}
+ {% for Y in X %}
+
+ {% for pb in Y %}
+ {% if pb.owner is none %}
+
+ {% elif pb.owner %}
+
{{pb.owner}} {{pb.x}}, {{pb.y}}, {{pb.z}}
+ {% else %}
+
empty {{pb.x}}, {{pb.y}}, {{pb.z}}
+ {% endif %}
+ {% endfor %}
+
+ {% endfor %}
+ {% endfor %}
+
+
+
\ No newline at end of file
diff --git a/postoffice/requirements.txt b/postoffice/requirements.txt
index 6f92c02..632eeee 100644
--- a/postoffice/requirements.txt
+++ b/postoffice/requirements.txt
@@ -1 +1,3 @@
-matplotlib~=3.7.1
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+matplotlib~=3.7.1
+Jinja2~=3.1.2
+beautifulsoup4~=4.12.2
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