card.py

"""
Heavily inspired by the code of:
https://arnaudmiribel.github.io/streamlit-extras/extras/stylable_container/
"""

import streamlit as st

mui_shadows = {
    0: "none",
    1: "0px 2px 1px -1px rgba(0,0,0,0.2),0px 1px 1px 0px rgba(0,0,0,0.14),0px 1px 3px 0px rgba(0,0,0,0.12)",
    2: "0px 3px 1px -2px rgba(0,0,0,0.2),0px 2px 2px 0px rgba(0,0,0,0.14),0px 1px 5px 0px rgba(0,0,0,0.12)",
    3: "0px 3px 3px -2px rgba(0,0,0,0.2),0px 3px 4px 0px rgba(0,0,0,0.14),0px 1px 8px 0px rgba(0,0,0,0.12)",
    4: "0px 2px 4px -1px rgba(0,0,0,0.2),0px 4px 5px 0px rgba(0,0,0,0.14),0px 1px 10px 0px rgba(0,0,0,0.12)",
    5: "0px 3px 5px -1px rgba(0,0,0,0.2),0px 5px 8px 0px rgba(0,0,0,0.14),0px 1px 14px 0px rgba(0,0,0,0.12)",
    6: "0px 3px 5px -1px rgba(0,0,0,0.2),0px 6px 10px 0px rgba(0,0,0,0.14),0px 1px 18px 0px rgba(0,0,0,0.12)",
    7: "0px 4px 5px -2px rgba(0,0,0,0.2),0px 7px 10px 1px rgba(0,0,0,0.14),0px 2px 16px 1px rgba(0,0,0,0.12)",
    8: "0px 5px 5px -3px rgba(0,0,0,0.2),0px 8px 10px 1px rgba(0,0,0,0.14),0px 3px 14px 2px rgba(0,0,0,0.12)",
    9: "0px 5px 6px -3px rgba(0,0,0,0.2),0px 9px 12px 1px rgba(0,0,0,0.14),0px 3px 16px 2px rgba(0,0,0,0.12)",
    10: "0px 6px 6px -3px rgba(0,0,0,0.2),0px 10px 14px 1px rgba(0,0,0,0.14),0px 4px 18px 3px rgba(0,0,0,0.12)",
    11: "0px 6px 7px -4px rgba(0,0,0,0.2),0px 11px 15px 1px rgba(0,0,0,0.14),0px 4px 20px 3px rgba(0,0,0,0.12)",
    12: "0px 7px 8px -4px rgba(0,0,0,0.2),0px 12px 17px 2px rgba(0,0,0,0.14),0px 5px 22px 4px rgba(0,0,0,0.12)",
    13: "0px 7px 8px -4px rgba(0,0,0,0.2),0px 13px 19px 2px rgba(0,0,0,0.14),0px 5px 24px 4px rgba(0,0,0,0.12)",
    14: "0px 7px 9px -4px rgba(0,0,0,0.2),0px 14px 21px 2px rgba(0,0,0,0.14),0px 5px 26px 4px rgba(0,0,0,0.12)",
    15: "0px 8px 9px -5px rgba(0,0,0,0.2),0px 15px 22px 2px rgba(0,0,0,0.14),0px 6px 28px 5px rgba(0,0,0,0.12)",
    16: "0px 8px 10px -5px rgba(0,0,0,0.2),0px 16px 24px 2px rgba(0,0,0,0.14),0px 6px 30px 5px rgba(0,0,0,0.12)",
    17: "0px 8px 11px -5px rgba(0,0,0,0.2),0px 17px 26px 2px rgba(0,0,0,0.14),0px 6px 32px 5px rgba(0,0,0,0.12)",
    18: "0px 9px 11px -5px rgba(0,0,0,0.2),0px 18px 28px 2px rgba(0,0,0,0.14),0px 7px 34px 6px rgba(0,0,0,0.12)",
    19: "0px 9px 12px -6px rgba(0,0,0,0.2),0px 19px 29px 2px rgba(0,0,0,0.14),0px 7px 36px 6px rgba(0,0,0,0.12)",
    20: "0px 10px 13px -6px rgba(0,0,0,0.2),0px 20px 31px 3px rgba(0,0,0,0.14),0px 8px 38px 7px rgba(0,0,0,0.12)",
    21: "0px 10px 13px -6px rgba(0,0,0,0.2),0px 21px 33px 3px rgba(0,0,0,0.14),0px 8px 40px 7px rgba(0,0,0,0.12)",
    22: "0px 10px 14px -6px rgba(0,0,0,0.2),0px 22px 35px 3px rgba(0,0,0,0.14),0px 8px 42px 7px rgba(0,0,0,0.12)",
    23: "0px 11px 14px -7px rgba(0,0,0,0.2),0px 23px 36px 3px rgba(0,0,0,0.14),0px 9px 44px 8px rgba(0,0,0,0.12)",
    24: "0px 11px 15px -7px rgba(0,0,0,0.2),0px 24px 38px 3px rgba(0,0,0,0.14),0px 9px 46px 8px rgba(0,0,0,0.12)",
}


def card(
    border=1,
    padding=12,
    border_radius=8,
    width=None,
    key=None,
    color=None,
):
    """
    This functions wraps Streamlit code to create a flexbox layout.
    Users can set justify-content and align-items arguments of the function to achieve the desired layout.
    """
    if key is None:
        hash = id(str(border) + str(padding) + str(width) + str(border_radius) + str(color))
    else:
        hash = key
    unique_id = f"_card_key_{hash}"

    css_styles = []

    # markdown elements in streamlit get bottom margin by default
    # this needs to be removed to allow proper flex layout
    css_styles.append(
        """
        > div:first-child {
            margin-bottom: -1rem;
        }
        """
    )

    chosen_border = mui_shadows[border]

    width_css = f"width: {width};" if width is not None else ""

    # Your css styles are applied directly to the container div
    #box-shadow: {chosen_border};
    css_styles.append(
        f"""
        {{
            background-color: {color};
            padding: {padding}px;
            border-radius: {border_radius}px;
            {width_css}
        }}
        """
    )
    
    # Streamlit will automatically set the width of all elements to the full width.
    # This needs to be disabled to achieve standard HTML behavior
    css_styles.append(
        """
        *:not(div[data-testid="stCheckbox"], div[data-testid="stCheckbox"] * ):not(div[class="st-emotion-cache-chk1w8 e1ycw9pz2"] *) {
            width: unset !important;
        }
        """
    )

    style_text = """
        <style>
        """
#:not(button[data-testid="stCopyButton"])
    for style in css_styles:
        style_text += f"""

        div[data-testid="stVerticalBlock"]:has(> div.element-container > div.stMarkdown > div[data-testid="stMarkdownContainer"] > p > span.{unique_id}) {style}

        """

    # This span is used to uniquely identify the container div with css :has(...the span...)
    # therefore, the span should not be visible and not interfere with the flex layout
    style_text += f"""

    div.element-container:has(span.{unique_id}) {{
        display: none;
    }}
    code {{
        white-space: pre-wrap !important;
    }}
    </style>

    <span class="{unique_id}"></span>
    """

    container = st.container()
    container.markdown(style_text, unsafe_allow_html=True)
    return container