#!/bin/bash

mkdir -p ~/.allpac/cache ~/.allpac/logs ~/.allpac/bin

echo "We are about to write a new pkg.list"
echo "Do you want us to proceed?"
echo "(reply 'n' if you already have a pkg.list)"
read -p "Proceed? [Y/n] " -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
    echo "Writing new pkg.list..."
    sleep 1
    touch ~/.allpac/pkg.list
    echo "{}" > ~/.allpac/pkg.list
else
    echo "Skipping writing new pkg.list..."
    sleep 1
fi

go_version=$(go version 2>/dev/null)
required_version="go1.21.5"

echo "Checking if Go is installed..."
if [[ "$go_version" != *"$required_version"* ]]; then
    echo "Required Go version is not installed."

    read -p "Do you want to install Go? (this will also perform a general system update with pacman) [Y/n] " -n 1 -r
    echo
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        echo "Running 'sudo pacman -Syu go' instead of 'pacman -Sy'..."
        echo "Because the Arch Developers won't make Pacman alert you of this, I guess AllPac has to..."
        echo "Running 'pacman -Sy'/'pacman -S' syncs the package database, but doesn't update the actual packages"
        echo "This can cause a lot of problems if something gets updated but something that depends on it doesn't."
        echo "It's called a 'Partial Upgrade' and it can break your system"
        echo "If you wanna install a package and you don't use AllPac, always just run 'pacman -Syu {package}'"
        echo "That's all it took to explain the issue properly Scimmia..."
        echo "Arch Linux Forums users/devs are toxic."
        sleep 3
        sudo pacman -Syu go
    else
        echo "Go not installed. Exiting."
        exit 1
    fi
fi

sleep 1

echo "Compatible Go version is installed!"
echo "Checking if Git is installed..."

if ! command -v git &>/dev/null; then
    echo "Git is not installed."

    read -p "Do you want to install Git? [Y/n] " -n 1 -r
    echo
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        sudo pacman -Syu git
    else
        echo "Git not installed. Exiting."
        exit 1
    fi
fi

sleep 1

echo "Git is installed!"

echo "Cloning AllPac Repository from Git..."
sleep 1

git clone https://git.pixelridgesoftworks.com/PixelRidge-Softworks/AllPac.git || { echo "Failed to clone repository. Exiting."; exit 1; }

echo "Descending into cloned repo..."
sleep 1
cd AllPac/cmd/ || { echo "Failed to change directory. Exiting."; exit 1; }

echo "Ensuring we have up to date dependencies..."
go mod tidy || { echo "Failed to tidy dependencies. Exiting."; exit 1; }
sleep 1

echo "Building binary..."
go build -o ~/.allpac/bin/allpac || { echo "Failed to build binary. Exiting."; exit 1; }
sleep 1

echo "Binary built!"

shell_rc=""
case $SHELL in
    */bash)
        shell_rc="$HOME/.bashrc"
        ;;
    */zsh)
        shell_rc="$HOME/.zshrc"
        ;;
    *)
        echo "Unsupported shell. Please manually add ~/.allpac/bin to your PATH."
        exit 1
        ;;
esac

echo "Adding AllPac to the system path..."
sleep 1
if ! grep -qF 'export PATH=$PATH:$HOME/.allpac/bin' "$shell_rc"; then
    echo 'export PATH=$PATH:$HOME/.allpac/bin' >> "$shell_rc"
fi

updater_url="https://git.pixelridgesoftworks.com/PixelRidge-Softworks/Installers/raw/branch/main/allpac/update.sh"
echo "Downloading updater script..."
wget -O ~/.allpac/bin/allpac-updater.sh "$updater_url" || { echo "Failed to download updater script. Exiting."; exit 1; }
sleep 1

echo "Setting updater script permissions..."
chmod u+rwx ~/.allpac/bin/allpac-updater.sh
sleep 1

echo "Aliasing the updater script..."
echo "alias allpac-update-system='~/.allpac/bin/allpac-updater.sh'" >> "$shell_rc"

echo "Cleaning up..."
cd ../../ || exit
rm -rf AllPac

echo "AllPac setup complete. Please restart your shell or source your shell configuration file to apply changes."