#!/bin/bash
# wget -q -O - https://raw.githubusercontent.com/devmel/hass_airsend/master/install | bash -
set -e

RED_COLOR='\033[0;31m'
GREEN_COLOR='\033[0;32m'
GREEN_YELLOW='\033[1;33m'
NO_COLOR='\033[0m'

declare haPath
declare -a paths=(
    "$PWD"
    "$PWD/config"
    "/config"
    "$HOME/.homeassistant/"
    "/usr/share/hassio/homeassistant/"
)

function info () { echo -e "${GREEN_COLOR}INFO: $1${NO_COLOR}";}
function warn () { echo -e "${GREEN_YELLOW}WARN: $1${NO_COLOR}";}
function error () { echo -e "${RED_COLOR}ERROR: $1${NO_COLOR}"; if [ "$2" != "false" ]; then exit 1;fi; }

function checkRequirement () {
    if [ -z "$(command -v "$1")" ]; then
        error "'$1' is not installed"
    fi
}

checkRequirement "wget"
checkRequirement "unzip"

info "Trying to find the correct directory..."
for path in "${paths[@]}"; do
    if [ -n "$haPath" ]; then
        break
    fi

    if [ -f "$path/home-assistant.log" ]; then
        haPath="$path"
    else
        if [ -d "$path/.storage" ] && [ -f "$path/configuration.yaml" ]; then
            haPath="$path"
        fi
    fi
done

if [ -n "$haPath" ]; then
    info "Found Home Assistant configuration directory at '$haPath'"
    cd "$haPath" || error "Could not change path to $haPath"
    if [ ! -d "$haPath/custom_components" ]; then
        info "Creating custom_components directory..."
        mkdir "$haPath/custom_components"
    fi

    info "Changing to the custom_components directory..."
    cd "$haPath/custom_components" || error "Could not change path to $haPath/custom_components"

    info "Downloading AirSend Home Assistant Component"
    wget "https://github.com/devmel/hass_airsend/releases/download/latest/hass_airsend.zip"

    if [ -d "$haPath/custom_components/hass_airsend" ]; then
        warn "airsend directory already exist, cleaning up..."
        rm -R "$haPath/custom_components/hass_airsend"
    fi

    info "Creating airsend directory..."
    mkdir "$haPath/custom_components/airsend"

    info "Unpacking hass_airsend..."
    unzip "$haPath/custom_components/hass_airsend.zip" -d "$haPath/custom_components/airsend" >/dev/null 2>&1

    info "Removing hass_airsend zip file..."
    rm "$haPath/custom_components/hass_airsend.zip"
    info "Installation complete."
    echo
    info "Remember to add configuration and restart Home Assistant"

else
    echo
    error "Could not find the directory for Home Assistant" false
    echo "Manually change the directory to the root of your Home Assistant configuration"
    echo "With the user that is running Home Assistant"
    echo "and run the script again"
    exit 1
fi