router "days" mit bisschen Bildverarbeitung

api/advent22_api/routers/__init__.py

@@ -1,7 +1,8 @@
 from fastapi import APIRouter
 
-from . import abspacken
+from . import abspacken, days
 
 router = APIRouter(prefix="/api")
 
 router.include_router(abspacken.router)
+router.include_router(days.router)

api/advent22_api/routers/days.py

@@ -0,0 +1,102 @@
+import random
+from datetime import date
+from io import BytesIO
+
+from fastapi import APIRouter, Depends
+from fastapi.responses import StreamingResponse
+from PIL import Image, ImageDraw, ImageFont
+
+router = APIRouter(prefix="/days", tags=["days"])
+
+loesungswort = "ABCDEFGHIJKLMNOPQRSTUVWX"
+
+
+async def shuffle(string: str) -> str:
+    rnd = random.Random(loesungswort)
+    return "".join(rnd.sample(string, len(string)))
+
+
+@router.on_event("startup")
+async def narf() -> None:
+    print(loesungswort)
+    print(await shuffle(loesungswort))
+
+
+@router.get("/letter/{index}")
+async def get_letter(
+    index: int,
+) -> str:
+    return (await shuffle(loesungswort))[index]
+
+
+@router.get("/date")
+def get_date() -> int:
+    return date.today().day
+
+
+@router.get(
+    "/picture",
+    response_class=StreamingResponse,
+)
+async def get_picture():
+    img = Image.open("hand.png").convert("RGBA")
+    d1 = ImageDraw.Draw(img)
+    font = ImageFont.truetype("Lena.ttf", 50)
+    d1.text((260, 155), "W", font=font, fill=(0, 0, 255))
+    # d1.text(xy=(400, 210), text="Deine Hände auch?",
+    #         font=Font, fill=(255, 0, 0))
+    img_buffer = BytesIO()
+    img.save(img_buffer, format="PNG", quality=85)
+    img_buffer.seek(0)
+
+    return StreamingResponse(
+        content=img_buffer,
+        media_type="image/png",
+    )
+
+
+async def load_picture_standard() -> Image.Image:
+    img = Image.open("hand.png")
+    width, height = img.size
+    square = min(img.size)
+
+    img = img.crop(box=(
+        int((width - square)/2),
+        int((height - square)/2),
+        int((width + square)/2),
+        int((height + square)/2),
+    ))
+
+    img = img.resize(
+        size=(400, 400),
+        resample=Image.ANTIALIAS,
+    )
+
+    return img.convert("RGB")
+
+
+@router.get(
+    "/picture/{index}",
+    response_class=StreamingResponse,
+)
+async def get_picture_for_day(
+    letter: str = Depends(get_letter),
+    img: Image.Image = Depends(load_picture_standard),
+) -> StreamingResponse:
+    font = ImageFont.truetype("Lena.ttf", 50)
+
+    txt_layer = Image.new(mode="RGB", size=(400, 400), color=(0, 0, 0))
+
+    d1 = ImageDraw.Draw(txt_layer)
+    d1.text(xy=(300, 300), text=letter, font=font,
+            anchor="mm", fill=(255, 255, 255))
+    d1.rectangle(txt_layer.getbbox())
+
+    img_buffer = BytesIO()
+    txt_layer.save(img_buffer, format="PNG", quality=85)
+    img_buffer.seek(0)
+
+    return StreamingResponse(
+        content=img_buffer,
+        media_type="image/png",
+    )

api/poetry.lock

@@ -79,6 +79,18 @@ category = "main"
 optional = false
 python-versions = ">=3.5"
 
+[[package]]
+name = "Pillow"
+version = "9.2.0"
+description = "Python Imaging Library (Fork)"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+docs = ["furo", "olefile", "sphinx (>=2.4)", "sphinx-copybutton", "sphinx-issues (>=3.0.1)", "sphinx-removed-in", "sphinxext-opengraph"]
+tests = ["check-manifest", "coverage", "defusedxml", "markdown2", "olefile", "packaging", "pyroma", "pytest", "pytest-cov", "pytest-timeout"]
+
 [[package]]
 name = "pydantic"
 version = "1.10.2"
@@ -200,7 +212,7 @@ python-versions = ">=3.7"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.10"
-content-hash = "f943c370bfb1086435c331528aaa595b38871a0f355045077c04fd955e0ad31b"
+content-hash = "5d4c72b8811bc7d6f587ec8e978596adac1ec53c000ba5f2c156b7f6cf02f454"
 
 [metadata.files]
 anyio = [
@@ -270,6 +282,66 @@ idna = [
     {file = "idna-3.4-py3-none-any.whl", hash = "sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2"},
     {file = "idna-3.4.tar.gz", hash = "sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4"},
 ]
+Pillow = [
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+]
 pydantic = [
     {file = "pydantic-1.10.2-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:bb6ad4489af1bac6955d38ebcb95079a836af31e4c4f74aba1ca05bb9f6027bd"},
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api/pyproject.toml

@@ -12,6 +12,7 @@ version = "0.1.0"
 fastapi = "^0.85.0"
 python = "^3.10"
 uvicorn = {extras = ["standard"], version = "^0.18.3"}
+Pillow = "^9.2.0"
 
 [tool.poetry.dev-dependencies]