#!/bin/bash

# Replace with the URL of your JSON file
JSON_URL="https://raw.githubusercontent.com/yuhonas/free-exercise-db/main/dist/exercises.json"
# Directory to save images and GIFs
SAVE_DIR="exercise_images"

# Create the main directory if it doesn't exist
mkdir -p "$SAVE_DIR"

# Fetch JSON data and iterate through exercises
curl -s "$JSON_URL" | jq -c '.[]' | while read -r exercise; do
  # Extract exercise information from JSON
  name=$(echo "$exercise" | jq -r '.name')
  images=($(echo "$exercise" | jq -r '.images[]'))

  # Create a subdirectory for this exercise if it doesn't exist
  modified_name="${name//_/ -}" # Replace underscores with hyphens
  modified_name="${modified_name//\//-}" # Replace slashes with hyphens
  exercise_dir="$SAVE_DIR/$modified_name"
  if [ ! -d "$exercise_dir" ]; then
    mkdir -p "$exercise_dir"

    # Download images and create GIF
    for image in "${images[@]}"; do
      image_url="https://raw.githubusercontent.com/yuhonas/free-exercise-db/main/exercises/$image"
      image_filename=$(basename "$image")
      # Replace underscores with hyphens in the filename
      modified_image_filename="${image_filename//_/ -}"
      modified_image_filename="${modified_image_filename//\//-}" # Replace slashes with hyphens
      
      # Download the image to the exercise-specific directory with the modified filename
      wget -q "$image_url" -O "$exercise_dir/$modified_image_filename"
    done

    # Create a GIF for the exercise
    gif_output="$exercise_dir/$modified_name.gif"
    convert -delay 100 -loop 0 "${exercise_dir}/*" "$gif_output"
  fi
done