#!/bin/bash

# Colors - Blue to Teal/Cyan gradient palette
BLUE='\033[0;34m'
LBLUE='\033[1;34m'
CYAN='\033[0;36m'
LCYAN='\033[1;36m'
GREEN='\033[0;32m'
TEAL='\033[38;5;37m'
DTEAL='\033[38;5;30m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
BOLD='\033[1m'
DIM='\033[2m'
NC='\033[0m' # No Color

# Symbols
CHECK="✔"
CROSS="✖"
ARROW="➜"
GEAR="⚙"
ROCKET="🚀"
SPARKLE="✨"

# Animation frames
SPINNER_FRAMES=("⠋" "⠙" "⠹" "⠸" "⠼" "⠴" "⠦" "⠧" "⠇" "⠏")
PROGRESS_CHARS=("░" "▒" "▓" "█")

# Typewriter effect function
typewriter() {
    local text="$1"
    local delay="${2:-0.03}"
    for ((i=0; i<${#text}; i++)); do
        echo -n "${text:$i:1}"
        sleep "$delay"
    done
}

# Spinner function - runs command with animated spinner
spinner() {
    local pid=$1
    local message="$2"
    local i=0
    while kill -0 "$pid" 2>/dev/null; do
        echo -ne "\r   ${LBLUE}${SPINNER_FRAMES[$i]}${NC} ${message}"
        i=$(( (i + 1) % ${#SPINNER_FRAMES[@]} ))
        sleep 0.1
    done
    wait "$pid"
    return $?
}

# Progress bar function
progress_bar() {
    local duration=$1
    local width=30
    local step=$(echo "scale=4; $duration / $width" | bc)
    
    echo -ne "   ${LBLUE}[${NC}"
    for ((i=0; i<width; i++)); do
        echo -ne "${TEAL}█${NC}"
        sleep "$step"
    done
    echo -e "${LBLUE}]${NC} ${TEAL}${CHECK}${NC}"
}

# Animated box drawing
draw_box_top() {
    echo -ne "${CYAN}"
    echo -n "╔"
    for ((i=0; i<84; i++)); do
        echo -n "═"
        sleep 0.005
    done
    echo -e "╗${NC}"
}

draw_box_bottom() {
    echo -ne "${CYAN}"
    echo -n "╚"
    for ((i=0; i<84; i++)); do
        echo -n "═"
        sleep 0.005
    done
    echo -e "╝${NC}"
}

# Fade in logo line by line
fade_in_logo() {
    local lines=(
        "${CYAN}║                                                                                    ║${NC}"
        "${CYAN}║  ${LBLUE}        .-~~~-.        ${LCYAN}██╗   ██╗██╗██████╗ ████████╗███╗   ██╗███████╗████████╗${CYAN}  ║${NC}"
        "${CYAN}║  ${LBLUE}    .- ~ ~-(  )- ~~ -. ${LCYAN}██║   ██║██║██╔══██╗╚══██╔══╝████╗  ██║██╔════╝╚══██╔══╝${CYAN}  ║${NC}"
        "${CYAN}║  ${LBLUE}   /                  \\${LCYAN}██║   ██║██║██████╔╝   ██║   ██╔██╗ ██║█████╗     ██║${CYAN}     ║${NC}"
        "${CYAN}║  ${BLUE}  |     ${DTEAL}.-----.${BLUE}      |${TEAL}╚██╗ ██╔╝██║██╔══██╗   ██║   ██║╚██╗██║██╔══╝     ██║${CYAN}     ║${NC}"
        "${CYAN}║  ${BLUE}   \\   ${DTEAL}(       )${BLUE}    / ${TEAL} ╚████╔╝ ██║██║  ██║   ██║   ██║ ╚████║███████╗   ██║${CYAN}     ║${NC}"
        "${CYAN}║  ${DTEAL}    \`~ --._____.-- ~\`  ${TEAL}  ╚═══╝  ╚═╝╚═╝  ╚═╝   ╚═╝   ╚═╝  ╚═══╝╚══════╝   ╚═╝${CYAN}     ║${NC}"
        "${CYAN}║                                                                                    ║${NC}"
        "${CYAN}║              ${BOLD}${YELLOW}Paymenter Load Balancer - Git Update & Apply${NC}${CYAN}                        ║${NC}"
        "${CYAN}║                                                                                    ║${NC}"
    )
    
    for line in "${lines[@]}"; do
        echo -e "$line"
        sleep 0.08
    done
}

# Pulse effect for status messages
pulse_message() {
    local message="$1"
    local color="$2"
    for i in {1..2}; do
        echo -ne "\r   ${color}${BOLD}${message}${NC}"
        sleep 0.15
        echo -ne "\r   ${color}${DIM}${message}${NC}"
        sleep 0.15
    done
    echo -ne "\r   ${color}${message}${NC}"
}

clear

# Animated header
draw_box_top
fade_in_logo
draw_box_bottom
echo ""

# Animated repository info
echo -ne "${LBLUE}${ARROW}${NC} Repository: "
typewriter "https://gitea.virtnet.bond/Joseph.Rawlings/Virtnet.bond/" 0.02
echo -e "${NC}"
echo ""

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

# Preparing update with animated countdown
echo -e "${TEAL}${GEAR}${NC} ${BOLD}Preparing update...${NC}"
echo -ne "   ${LBLUE}⏳${NC} Waiting "
for ((i=sleep_time; i>0; i--)); do
    echo -ne "${LCYAN}${BOLD}${i}${NC} "
    for frame in "${SPINNER_FRAMES[@]}"; do
        echo -ne "${LBLUE}${frame}${NC}"
        sleep 0.1
        echo -ne "\b"
    done
done
echo -e "${TEAL}${CHECK}${NC} ${SPARKLE}"
echo ""

# Git pull with spinner
echo -e "${TEAL}${GEAR}${NC} ${BOLD}Pulling latest changes from Git...${NC}"
git pull > /tmp/git_output.txt 2>&1 &
GIT_PID=$!
spinner $GIT_PID "Fetching from remote..."
GIT_STATUS=$?

if [ $GIT_STATUS -ne 0 ]; then
    echo -e "\r   ${RED}${CROSS}${NC} Git pull failed!              "
    cat /tmp/git_output.txt
    echo ""
    pulse_message "Restarting script..." "${YELLOW}"
    echo ""
    sleep 2
    exec "$0" "$@"
fi
echo -e "\r   ${TEAL}${CHECK}${NC} Git pull completed ${SPARKLE}           "
cat /tmp/git_output.txt | head -3 | while read line; do
    echo -e "      ${DIM}${line}${NC}"
done
echo ""

# Cache clearing with progress
echo -e "${TEAL}${GEAR}${NC} ${BOLD}Clearing caches...${NC}"
echo -ne "   ${LBLUE}${SPINNER_FRAMES[0]}${NC} View cache"
php artisan view:clear > /dev/null 2>&1 &
spinner $! "View cache"
echo -e "\r   ${TEAL}${CHECK}${NC} View cache cleared ${SPARKLE}           "

echo -ne "   ${LBLUE}${SPINNER_FRAMES[0]}${NC} Application cache"
php artisan cache:clear > /dev/null 2>&1 &
spinner $! "Application cache"
echo -e "\r   ${TEAL}${CHECK}${NC} Application cache cleared ${SPARKLE}    "
echo ""

# PHP-FPM restart with progress bar
echo -e "${TEAL}${GEAR}${NC} ${BOLD}Restarting PHP-FPM...${NC}"
systemctl restart php8.3-fpm &
RESTART_PID=$!
spinner $RESTART_PID "Restarting service..."
echo -e "\r   ${TEAL}${CHECK}${NC} PHP 8.3 FPM restarted ${SPARKLE}        "
echo ""

# Animated completion box
sleep 0.3
draw_box_top
echo -e "${CYAN}║                                                                                    ║${NC}"
sleep 0.1
echo -ne "${CYAN}║   ${TEAL}${ROCKET} ${NC}"
typewriter "${BOLD}UPDATE COMPLETE!${NC}" 0.05
echo -e "${CYAN}                                                              ║${NC}"
sleep 0.1
echo -e "${CYAN}║                                                                                    ║${NC}"
echo -e "${CYAN}║   ${NC}Paymenter has been successfully updated and services restarted.${CYAN}                  ║${NC}"
echo -e "${CYAN}║                                                                                    ║${NC}"
draw_box_bottom

# Final sparkle animation
echo ""
echo -ne "   "
for i in {1..5}; do
    echo -ne "${LCYAN}${SPARKLE}${NC} "
    sleep 0.15
done
echo ""
echo ""