python-actions/app.py at main · lang2456-UST/python-actions · GitHub

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from flask import Flask, render_template, request

app = Flask(__name__)


@app.route("/", methods=["GET", "POST"])
def index():
    values = {
        "stitch_gauge": "",
        "row_gauge": "",
        "neck_circumference": "",
        "yoke_depth": "",
        "arm_circumference": "",
        "chest_circumference": "",
        "desired_ease": "",
        "desired_body_length": "",
        "wrist_circumference": "",
        "desired_arm_length": "",
        "schematic_d": "",
    }
    errors = []
    results = None

    if request.method == "POST":
        stage = request.form.get("stage", "initial")
        values = {
            key: request.form.get(key, "").strip()
            for key in values
        }

        try:
            stitch_gauge = float(values["stitch_gauge"])
            row_gauge = float(values["row_gauge"])
            neck_circumference = float(values["neck_circumference"])
            yoke_depth = float(values["yoke_depth"])
            arm_circumference = float(values["arm_circumference"])
            chest_circumference = float(values["chest_circumference"])
            desired_ease = float(values["desired_ease"])
            wrist_circumference = float(values["wrist_circumference"])

            numeric_inputs = {
                "Stitch gauge": stitch_gauge,
                "Row gauge": row_gauge,
                "Neck circumference": neck_circumference,
                "Yoke depth": yoke_depth,
                "Arm circumference": arm_circumference,
                "Chest circumference": chest_circumference,
                "Desired ease": desired_ease,
                "Final sleeve circumference at wrist": wrist_circumference,
            }

            desired_arm_length = None
            desired_body_length = None
            schematic_d = None
            if stage == "schematic":
                desired_arm_length = float(values["desired_arm_length"])
                desired_body_length = float(values["desired_body_length"])
                schematic_d = float(values["schematic_d"])
                numeric_inputs["B: Desired arm length"] = desired_arm_length
                numeric_inputs["C: Desired body length"] = desired_body_length
                numeric_inputs["D: Arm circumference plus ease"] = schematic_d

            for label, value in numeric_inputs.items():
                if value <= 0:
                    errors.append(f"{label} must be greater than 0.")

            if not errors:
                stitches_per_inch = stitch_gauge / 4
                rows_per_inch = row_gauge / 4
                chest_with_ease = chest_circumference + desired_ease
                arm_with_ease = arm_circumference + desired_ease

                chest_total_stitches = chest_with_ease * stitches_per_inch
                armhole_stitches = arm_with_ease * stitches_per_inch
                neck_circumference = neck_circumference * stitches_per_inch
                yoke_depth = yoke_depth * rows_per_inch

                increases = (chest_total_stitches - neck_circumference) / 4
                every = yoke_depth / increases if increases != 0 else 0

                results = {
                    "stitches_per_inch": stitches_per_inch,
                    "rows_per_inch": rows_per_inch,
                    "chest_total_stitches": chest_total_stitches,
                    "armhole_stitches": armhole_stitches,
                    "neck_circumference": neck_circumference,
                    "yoke_depth": yoke_depth,
                    "label_a": chest_with_ease,
                    "label_c": desired_body_length,
                    "label_e": float(values["yoke_depth"]),
                    "wrist_circumference": wrist_circumference,
                    "show_schematic_prompt": stage == "initial",
                    "label_b": desired_arm_length,
                    "label_d": schematic_d if schematic_d is not None else arm_with_ease,
                    "increases": increases,
                    "every": every,
                }

        except ValueError:
            errors.append("Please enter valid numeric values for all fields.")

    return render_template(
        "index.html",
        values=values,
        errors=errors,
        results=results,
    )


if __name__ == "__main__":
    app.run(debug=True)