from docx import Document
from docx.enum.style import WD_STYLE_TYPE
from docx.oxml.ns import qn
from docx.shared import Pt, RGBColor


def set_font(font, name: str, size_pt: int, *, bold: bool = False):
    font.name = name
    font.size = Pt(size_pt)
    font.bold = bold
    font.color.rgb = RGBColor(0x00, 0x00, 0x00)


def set_run_fonts(style, name: str):
    r_pr = style.element.get_or_add_rPr()
    r_fonts = r_pr.get_or_add_rFonts()
    r_fonts.set(qn("w:ascii"), name)
    r_fonts.set(qn("w:hAnsi"), name)
    r_fonts.set(qn("w:eastAsia"), name)
    r_fonts.set(qn("w:cs"), name)


def style_paragraph(style, name: str, size_pt: int, *, bold: bool = False, space_before: int = 0, space_after: int = 0):
    set_font(style.font, name, size_pt, bold=bold)
    set_run_fonts(style, name)
    fmt = style.paragraph_format
    fmt.space_before = Pt(space_before)
    fmt.space_after = Pt(space_after)


doc = Document()
styles = doc.styles

normal = styles["Normal"]
style_paragraph(normal, "Times New Roman", 12)

title = styles["Title"]
style_paragraph(title, "Times New Roman", 22, bold=True, space_after=12)

heading1 = styles["Heading 1"]
style_paragraph(heading1, "Times New Roman", 18, bold=True, space_before=18, space_after=10)

heading2 = styles["Heading 2"]
style_paragraph(heading2, "Times New Roman", 16, bold=True, space_before=14, space_after=8)

heading3 = styles["Heading 3"]
style_paragraph(heading3, "Times New Roman", 14, bold=True, space_before=12, space_after=6)

if "First Paragraph" not in [style.name for style in styles]:
    styles.add_style("First Paragraph", WD_STYLE_TYPE.PARAGRAPH)

first_paragraph = styles["First Paragraph"]
style_paragraph(first_paragraph, "Times New Roman", 12)

doc.save("reference.docx")