#!/bin/bash

PASS_EXECUTABLE=pass

if ! hash $PASS_EXECUTABLE 2> /dev/null; then
	echo "Pass executable not found. This script use pass to convert gpg password wallet. Exiting."
	exit
fi

if ! hash awk 2> /dev/null; then
	  echo "Awk executable not found. Exiting."
	  exit
fi

if [ -z "$PASSWORD_STORE_DIR" ]; then
	echo "PASSWORD_STORE_DIR is empty or invalid. Please follow pass documentation to understand how configure it."
	exit
fi

BASE_NAME=passwords
CURRENT_DATE=$(date "+%Y-%m-%d")
FINAL_FILE_NAME=${BASE_NAME}_${CURRENT_DATE}.csv
DELIMITER=$'\t'

if [[ -f "$FINAL_FILE_NAME" ]]; then
	echo "A file with name $FINAL_FILE_NAME already exists! Please rename or delete and re-execute this script."
	exit
else
	touch $FINAL_FILE_NAME
	echo "Account${DELIMITER}Password${DELIMITER}Login${DELIMITER}Rest" >> $FINAL_FILE_NAME
fi

if [[ -f "$FINAL_FILE_NAME" ]]; then
	find $PASSWORD_STORE_DIR -not -type d -iname "*.gpg" -print0 | while IFS= read -r -d $'\0' f ; do {
			GPG_FILE_NAME="${f:${#PASSWORD_STORE_DIR}+1}"
			GPG_FILE_NAME=${GPG_FILE_NAME/\.gpg/}

			PASSWORD=$($PASS_EXECUTABLE show "$GPG_FILE_NAME" | head -n1)

			LOGIN_KEY=$($PASS_EXECUTABLE show "$GPG_FILE_NAME" | awk 'BEGIN{IGNORECASE=1} /^login:|ID:|email:|user:/ {ORS=" ";for(i=2; i<=NF; i++) print $i; exit;}')
			REST=$($PASS_EXECUTABLE show "$GPG_FILE_NAME" | awk '(NR>1)')
			GPG_FILE_NAME=${GPG_FILE_NAME//\// > }

			echo "Processing $GPG_FILE_NAME";
			echo "$GPG_FILE_NAME$DELIMITER$PASSWORD$DELIMITER$LOGIN_KEY$DELIMITER\"$REST\"" >> $FINAL_FILE_NAME
	}; done;
	unset f;

	echo "Process done!"
else
	echo "Something strange! The file $FINAL_FILE_NAME does not exists!"
fi