#!/bin/bash

# ============================================================================
# Virtnet.bond - Paymenter Load Balancer Git Update Script
# ============================================================================

# 256-Color Gradient Palette (Blue to Teal)
# #0c00ff -> #0066ff -> #008dff -> #00a6ff -> #00bbe7 -> #00cd9a
C1='\e[38;5;21m'   # Deep Blue
C2='\e[38;5;27m'   # Blue
C3='\e[38;5;33m'   # Light Blue
C4='\e[38;5;39m'   # Cyan Blue
C5='\e[38;5;44m'   # Cyan
C6='\e[38;5;43m'   # Teal

# Standard colors
WHITE='\e[97m'
GRAY='\e[90m'
RED='\e[91m'
YELLOW='\e[93m'
GREEN='\e[92m'
BOLD='\e[1m'
DIM='\e[2m'
NC='\e[0m'

# Spinner frames
SPIN=('⣾' '⣽' '⣻' '⢿' '⡿' '⣟' '⣯' '⣷')

# ============================================================================
# FUNCTIONS
# ============================================================================

print_header() {
    clear
    echo ""
    echo -e "  ${C1}██╗   ██╗${C2}██╗${C3}██████╗ ${C3}████████╗${C4}███╗   ██╗${C5}███████╗${C6}████████╗${NC}"
    echo -e "  ${C1}██║   ██║${C2}██║${C3}██╔══██╗${C3}╚══██╔══╝${C4}████╗  ██║${C5}██╔════╝${C6}╚══██╔══╝${NC}"
    echo -e "  ${C1}██║   ██║${C2}██║${C3}██████╔╝${C3}   ██║   ${C4}██╔██╗ ██║${C5}█████╗  ${C6}   ██║   ${NC}"
    echo -e "  ${C1}╚██╗ ██╔╝${C2}██║${C3}██╔══██╗${C3}   ██║   ${C4}██║╚██╗██║${C5}██╔══╝  ${C6}   ██║   ${NC}"
    echo -e "  ${C1} ╚████╔╝ ${C2}██║${C3}██║  ██║${C3}   ██║   ${C4}██║ ╚████║${C5}███████╗${C6}   ██║   ${NC}"
    echo -e "  ${C1}  ╚═══╝  ${C2}╚═╝${C3}╚═╝  ╚═╝${C3}   ╚═╝   ${C4}╚═╝  ╚═══╝${C5}╚══════╝${C6}   ╚═╝   ${NC}"
    echo -e "                         ${C6}${BOLD}.bond${NC}"
    echo ""
    echo -e "  ${C4}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
    echo -e "  ${WHITE}${BOLD}     Paymenter Load Balancer - Git Update & Apply${NC}"
    echo -e "  ${C4}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
    echo ""
}

spinner() {
    local pid=$1
    local msg=$2
    local i=0
    while kill -0 "$pid" 2>/dev/null; do
        printf "\r  ${C3}${SPIN[$i]}${NC} ${msg}"
        i=$(( (i + 1) % 8 ))
        sleep 0.1
    done
    wait "$pid"
    return $?
}

task_start() {
    echo -e "\n${C4}┌─${NC} ${C5}${BOLD}$1${NC}"
}

task_item() {
    printf "  ${C3}○${NC} $1"
}

task_done() {
    printf "\r  ${C6}●${NC} $1 ${GREEN}✓${NC}\n"
}

task_fail() {
    printf "\r  ${RED}●${NC} $1 ${RED}✗${NC}\n"
}

countdown() {
    local secs=$1
    for ((i=secs; i>0; i--)); do
        printf "\r  ${C3}◐${NC} Waiting ${C5}${BOLD}$i${NC}s "
        sleep 0.25
        printf "\r  ${C3}◓${NC} Waiting ${C5}${BOLD}$i${NC}s "
        sleep 0.25
        printf "\r  ${C3}◑${NC} Waiting ${C5}${BOLD}$i${NC}s "
        sleep 0.25
        printf "\r  ${C3}◒${NC} Waiting ${C5}${BOLD}$i${NC}s "
        sleep 0.25
    done
    printf "\r  ${C6}●${NC} Ready!          ${GREEN}✓${NC}\n"
}

print_complete() {
    echo ""
    echo -e "  ${C4}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
    echo ""
    echo -e "  ${C6}${BOLD}🚀 UPDATE COMPLETE${NC}"
    echo ""
    echo -e "  ${GRAY}Paymenter has been updated and all services restarted.${NC}"
    echo ""
    echo -e "  ${C4}━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━${NC}"
    echo ""
}

# ============================================================================
# MAIN SCRIPT
# ============================================================================

print_header

echo -e "  ${C3}→${NC} ${GRAY}Repository:${NC} ${C5}https://gitea.virtnet.bond/Joseph.Rawlings/Virtnet.bond/${NC}"

# Random delay
sleep_time=$((RANDOM % 5 + 1))
cd /var/www/paymenter

# Prepare
task_start "Preparing Update"
countdown "$sleep_time"

# Git Pull
task_start "Pulling Latest Changes"
task_item "Fetching from remote..."
git pull > /tmp/git_output.txt 2>&1 &
spinner $! "Fetching from remote..."
GIT_STATUS=$?

if [ $GIT_STATUS -ne 0 ]; then
    task_fail "Git pull failed"
    echo ""
    cat /tmp/git_output.txt
    echo ""
    echo -e "  ${YELLOW}↻${NC} ${YELLOW}Restarting script in 2 seconds...${NC}"
    sleep 2
    exec "$0" "$@"
fi

task_done "Git pull completed"
head -3 /tmp/git_output.txt | while IFS= read -r line; do
    echo -e "    ${DIM}$line${NC}"
done

# Clear Caches
task_start "Clearing Caches"

task_item "View cache..."
php artisan view:clear > /dev/null 2>&1 &
spinner $! "View cache..."
task_done "View cache cleared"

task_item "Application cache..."
php artisan cache:clear > /dev/null 2>&1 &
spinner $! "Application cache..."
task_done "Application cache cleared"

# Restart PHP-FPM
task_start "Restarting Services"
task_item "PHP 8.3 FPM..."
systemctl restart php8.3-fpm &
spinner $! "PHP 8.3 FPM..."
task_done "PHP 8.3 FPM restarted"

# Complete
print_complete