utils.jl

## Utility Functions 

# Score to colors 
function score_to_color(score)
    if score ≤ 0.5
        # Interpolate from blue (#0000FF) to gray (#888888)
        t = score / 0.5
        r = round(Int, (1 - t) * 0   + t * 136)
        g = round(Int, (1 - t) * 0   + t * 136)
        b = round(Int, (1 - t) * 255 + t * 136)
    else
        # Interpolate from gray (#888888) to red (#FF0000)
        t = (score - 0.5) / 0.5
        r = round(Int, (1 - t) * 136 + t * 255)
        g = round(Int, (1 - t) * 136 + t * 0)
        b = round(Int, (1 - t) * 136 + t * 0)
    end
    return "rgb($r,$g,$b)"
end
	
# Creates a paragraph with colored text based on scores from a dataframe 
function scored_text_paragraph(df::DataFrame)
    fragments = String[]

    for row in eachrow(df)
        color = score_to_color(row[:score])
        text = row[:text]
        push!(fragments, """<span style="color: $color;">$text</span>""")
    end

    html = "<p style='font-family: system-ui, sans-serif; font-size: 1.1rem;'>" * join(fragments, " ") * "</p>"
    return HTML(html)
end
	

df = DataFrame(score = [0.1, 0.3, 0.6, 0.9],
                text = ["This", "is", "a", "test."])
scored_text_paragraph(df)