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class PdfresourcesController < ApplicationController
before_action :set_pdfresource, only: %i[ show edit update destroy ]
before_action :require_admin, only: %i[ new create update destroy ]
# GET /pdfresources or /pdfresources.json
def index
@pdfresources = Pdfresource.all
end
# GET /pdfresources/1 or /pdfresources/1.json
def show
end
# GET /pdfresources/new
def new
@pdfresource = Pdfresource.new
end
# GET /pdfresources/1/edit
def edit
end
# POST /pdfresources or /pdfresources.json
def create
@pdfresource = Pdfresource.new(pdfresource_params)
respond_to do |format|
if @pdfresource.save
process_pdfs(@pdfresource.pdfs)
format.html { redirect_to @pdfresource, notice: "Resource was successfully created." }
format.json { render :show, status: :created, location: @pdfresource }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: @pdfresource.errors, status: :unprocessable_entity }
end
end
end
def process_pdfs(pdfs)
pdfs.each do |pdf|
pdf_path = ActiveStorage::Blob.service.send(:path_for, pdf.key)
convert_pdf_to_images(pdf_path, @pdfresource)
end
end
def convert_pdf_to_images(pdf_path, resource)
page_count_output = MiniMagick::Tool::Identify.new do |identify|
identify.format '%n'
identify << pdf_path
end
page_count = page_count_output.size
page_count.times do |index|
image_path = "page-#{index + 1}.jpg"
reduced_image_path = "reduced-page-#{index + 1}.jpg"
MiniMagick::Tool::Magick.new do |magick|
magick << "#{pdf_path}[#{index}]" # Process each PDF page individually
magick << image_path
end
image_reduced = MiniMagick::Tool::Magick.new do |magick|
magick << image_path
magick << "-quality"
magick << "40"
magick.strip
magick << "-resize"
magick << "50%"
magick << reduced_image_path
end
if File.exist?(reduced_image_path)
image_blob = ActiveStorage::Blob.create_and_upload!(
io: File.open(reduced_image_path),
filename: "page-#{index + 1}.jpg",
content_type: 'image/jpg'
)
resource.pdf_snapshots.attach(image_blob)
File.delete(image_path) if File.exist?(image_path)
File.delete(reduced_image_path) if File.exist?(reduced_image_path)
else
raise "Reduced image file wasn't created successfully: #{image_reduced}"
end
end
end
# PATCH/PUT /pdfresources/1 or /pdfresources/1.json
def update
respond_to do |format|
if @pdfresource.update(pdfresource_params)
format.html { redirect_to @pdfresource, notice: "Pdfresource was successfully updated." }
format.json { render :show, status: :ok, location: @pdfresource }
else
format.html { render :edit, status: :unprocessable_entity }
format.json { render json: @pdfresource.errors, status: :unprocessable_entity }
end
end
end
# DELETE /pdfresources/1 or /pdfresources/1.json
def destroy
@pdfresource.destroy!
respond_to do |format|
format.html { redirect_to pdfresources_path, status: :see_other, notice: "Pdfresource was successfully destroyed." }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_pdfresource
@pdfresource = Pdfresource.find(params.expect(:id))
end
# Only allow a list of trusted parameters through.
def pdfresource_params
params.expect(pdfresource: [:name, :stripe_product_id, :price, :age_range, :curriculum, :feature_slot, :description, :card_description, pdfs: [], thumbnails: []])
end
# must be admin!
def require_admin
unless Current.session.user&.is_admin
redirect_to root_path, notice: "You must be an admin to perform this action."
end
end
end
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