#!/usr/bin/env bash

readonly toolName=wallabag
readonly toolComposerVersion="2.2.18"
readonly toolDeps="make"
readonly toolRepo="https://github.com/wallabag/wallabag.git"

# Already defined by sequencer.sh, but may be overwritten
#readonly seq_configName="${sq_scriptName:?}.cfg"
#readonly seq_configTemplate="${seq_origin:?}/${sq_configName:?}.example"

sq_aptOpt=
sq_config=0

seq_config() {
  ## or to use sequencer api with global config file:
  if initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
    sq_config=1
  else
    # End if no configuration file exists
    dry || return 1
  fi

  ## Apt cmdline option to suppress user interaction
  interactive || sq_aptOpt="-y"

  ## Disable error checks if external scripts are used
  ## e.g. error on unbound variables
  #disableErrorCheck

  ## Return of non zero value will abort the sequence
  return 0
}

step_1_info() { echo "${toolName} installation status"; }
step_1_alias() { echo "status"; }
step_1() {
  if [[ -e "${sc_wallabagDir}" ]] ; then
    color green
    info "${toolName} installed"
  else
    color red
    info "${toolName} not installed"
    return 1
  fi
}

step_10_info() {
  echo -n "Install ${toolName}"
  [[ -n "${sc_wallabagDir:-}" ]] && echo " to ${sc_wallabagDir}" || echo " to configured folder"
}
step_10_alias() { echo "install"; }
step_10() {
  if [[ -e "${sc_wallabagDir}" ]] ; then
    error "${toolName} already installed"
    return 1
  fi
  exe apt update
  exe apt install ${toolDeps} "${sq_aptOpt}"
}

step_11_info() { echo "Clone and prepare repository"; }
step_11() {
  exe git clone "${toolRepo}" "${sc_wallabagDir}"
  exe mkdir "${sc_wallabagDir}/vendor"
  step postupgrade
}

step_12_info() { echo "Get supported composer version"; }
step_12() {
  local result=1
  local composerSetup="composer-setup.php"
  local expected_checksum="$(php -r 'copy("https://composer.github.io/installer.sig", "php://stdout");')"
  exe cd "${sc_wallabagDir}"
  exe php -r "copy('https://getcomposer.org/installer', '${composerSetup}');"
  local actual_checksum="$(php -r "echo hash_file('sha384', '${composerSetup}');")"

  if [ "$expected_checksum" != "$actual_checksum" ]
  then
    error 'Invalid installer checksum'
    exe rm "${composerSetup}"
    return 1
  fi

  exe php "${composerSetup}" --quiet --version="${toolComposerVersion}"
  result="$?"
  exe rm "${composerSetup}"
  return "${result}"
}

step_13_info() { echo "Create mysql database for wallabag"; }
step_13() {
  exe "${seq_origin}/mysql.sh" -q createdb -c utf8mb4 -d "${sc_wallabagDb:-"wallabag_db"}" -u "${sc_wallabagDbUser:-"wallabag"}"
}

step_14_info() { echo "Start ${toolName} installation procedure"; }
step_14() {
  exe cd "${sc_wallabagDir}"
  exe sudo -u "${sc_wallabagUser}" make install
}

step_20_info() { echo "Backup ${toolName}"; }
step_20_alias() { echo "backup"; }
step_20() {
  info "Backing up configuration..."
  exe cd "${sc_wallabagDir}"
  exe tar czf "${sc_wallabagBackupDir:?}/wallabag_conf_$(date +%Y%m%d-%H%M%S).tar.gz" "app/config"
  exe "${seq_origin}/mysql.sh" -qq backup "${sc_wallabagDb}" "${sc_wallabagBackupDir:?}"
}

step_22_info() { echo "Upgrade ${toolName}"; }
step_22_alias() { echo "upgrade"; }
step_22() {
  step backup
  exe cd "${sc_wallabagDir}"
  exe sudo -u "${sc_wallabagUser}" make update
}
step_23_info() { echo "Post upgrade steps"; }
step_23_alias() { echo "postupgrade"; }
step_23() {
  # Upgrade using user www-data is only successfull like this:
  exe chown -R "${sc_wallabagUser}": "${sc_wallabagDir}"
}

step_100_alias() { echo "notes"; }
step_100() {
  color green
  cat <<NOTES_EOF
# Nginx - ${toolName} in subfolder /pocket

To be used with a reverse proxy for https.

---
upstream php-handler-wallabag {
  server unix:/var/run/php/php7.4-fpm.sock;
}

server {
  listen 80;

  access_log off; #/var/log/nginx/wallabag_access.log;
  error_log /var/log/nginx/wallabag_error.log;

  # Set the root folder in a variable (optional)
  set \$frontRoot ${sc_wallabagDir};
  set \$sfApp app.php; # Change to app_dev.php for dev


  set_real_ip_from 10.0.0.0/24;
  real_ip_header X-Real-IP;
  real_ip_recursive on;

  # wallabag is Symfony 2 app
  location /pocket/ { # Static files
    root \$frontRoot;
    rewrite ^/pocket/(.*)\$ /\$1 break;
    try_files \$uri @sfFront;
  }

  location @sfFront {
    fastcgi_pass php-handler-wallabag;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME \$frontRoot/\$sfApp;
    fastcgi_param SCRIPT_NAME /pocket/\$sfApp;
    fastcgi_param REQUEST_URI /pocket\$uri?\$args;
    fastcgi_param HTTPS on;
  }
}
---
NOTES_EOF
}

# shellcheck disable=SC2034 # Appears unused
readonly sqr_minVersion=16
# shellcheck disable=SC1091 # Don't follow this source
. /usr/local/bin/sequencer.sh