#!/bin/bash
#
# Minimal CLI interface for ilmanifesto.it
#

# Get latest news
curl -s --compressed \
     -H 'accept: application/json; charset=utf-8' \
     -H 'user-agent: okhttp/4.9.1' \
     https://api.ilmanifesto.it/api/v1/wp/editions/latest > latest.json

# Or maybe older ones?
#curl  -H 'accept: application/json; charset=utf-8' --compressed -H 'user-agent: okhttp/4.9.1' 'https://api.ilmanifesto.it/api/v1/wp/editions?pageSize=6&pageNumber=1'

# List
bold=$(tput bold)
normal=$(tput sgr0)

title=$(cat latest.json | jq -r .title)
subtitle=$(cat latest.json | jq -r .excerpt)
echo -e "${bold}${title}${normal}\n${subtitle}"

read -n 1 -r -p "Download and open? [Y/n]"
if [[ $REPLY =~ ^[Nn]$ ]];
then
 echo "Bye!"
 exit
fi


# Login needed?
if [ ! -f "token.json" ];
then

 # First login
 read -p 'Email: ' email
 read -sp 'Password: ' pass

 curl -s --compressed \
      -H 'accept: application/json, text/plain, */*' \
      -H 'x-mobile-entitlement: app' -H 'content-type: application/json' \
      -H 'user-agent: okhttp/4.9.1' \
      -X POST https://api.ilmanifesto.it/api/v1/auth/login -d "{\"email\":\"$email\",\"password\":\"$pass\"}" > login.json
 
 cat login.json | jq -r .token > token.json

else

 # Renew token
 timeout=$(cat token.json | jq .expiresIn)
 let timepassed=`date +%s`-`stat -c %Y token.json`

 if [[ $timepassed > $timeout ]] ; then
  rtoken=$(cat token.json | jq -r .refreshToken)
  curl -s --compressed \
       -H 'accept: application/json, text/plain, */*' \
       -H 'content-type: application/json' \
       -H 'user-agent: okhttp/4.9.1' \
       -X POST https://api.ilmanifesto.it/api/v1/auth/token \
       -d "{\"refreshToken\":\"$rtoken\"}" > token.json
 fi

fi

# Get PDF
token=$(cat token.json | jq -r '.accessToken')
slug=$(cat latest.json | jq -r '.slug')
pdf=$(cat latest.json | jq -r '.pdf')

curl -H 'range: bytes=null-' \
     -H "authorization: Bearer $token" -H 'accept: application/pdf' \
     -H 'content-type: application/pdf' -H 'user-agent: okhttp/4.9.1' \
     "https://api.ilmanifesto.it/api/v1/wp/pdfs/slug/$pdf/download" > $pdf.pdf

# And open it
xdg-open $pdf.pdf