#!/bin/bash

#!/bin/bash

# Check if two arguments are provided
#if [ $# -lt 3 ]; then
#  echo "Usage: $0 <input_file> <output_prefix> <title>"
#  exit 1
#fi

# Assign arguments to variables
#input_file="$1"
#output_prefix="$2"
#title="$3"

input_file="TheThreeCalamaties-3200x1828.jpg"
output_prefix="TheThreeCalamaties"
title="The Three Calamaties"

# Check if the input file exists 
if [ ! -f "$input_file" ]; then
  echo "Error: File '$input_file' does not exist."
  exit 1
fi

# Get dimensions of the input image
width=$(magick identify -format "%w" "$input_file")
height=$(magick identify -format "%h" "$input_file")
echo "Input file is ${width}x${height}"


###############################
# Input file and output file
wtitle_prefix="${output_prefix}-title"
output_file="${wtitle_prefix}.png"

# Text lines and their font sizes
line1="${title}"
line1_font_size=180

line2="www.GrailHeart.com"
line2_font_size=120

# Font and text color
font="./Caudex-Regular.ttf"   # Path to the Caudex font
text_color="#111111"         # Specify the color in hex

# Temporary text images
text_image1="_text1.png"
text_image2="_text2.png"

# Create temporary text images for each line
magick -size 3000x200 -background none -gravity north \
    -font "$font" -pointsize "$line1_font_size" -fill "$text_color" \
    label:"$line1" "$text_image1"

magick -size 3000x200 -background none -gravity north \
    -font "$font" -pointsize "$line2_font_size" -fill "$text_color" \
    label:"$line2" "$text_image2"

# Get dimensions of the text images
text_height1=$(magick identify -format "%h" "$text_image1")
text_height2=$(magick identify -format "%h" "$text_image2")

# Calculate total canvas height
canvas_height=$((height + text_height1 + text_height2 + 30))

# Create a transparent canvas and compose the final image
magick -size ${width}x${canvas_height} xc:none \
    \( "$input_file" -gravity north \) -composite \
    \( "$text_image1" -gravity south -geometry +0+$((text_height2 + 20)) \) -composite \
    \( "$text_image2" -gravity south -geometry +0+10 \) -composite \
    "$output_file"

# Clean up temporary text images
rm "$text_image1" "$text_image2"

echo "PNG file created: $output_file"