install.sh

#!/bin/bash

URL="https://raw.githubusercontent.com/NiclasHaderer/duckdb-version-manager/main/versions/latest-vm.json"

function download() {
	if ! command -v jq &>/dev/null; then
		echo "jq could not be found. Please install jq to proceed."
		exit 1
	fi

	DOWNLOAD_DIR="$HOME/.local/bin"
	mkdir -p "${DOWNLOAD_DIR}"

	JSON_CONTENT=$(curl -sL "${URL}")

	OS="$(uname -s)"
	ARCH="$(uname -m)"

	case "${ARCH}" in
	x86_64) ARCH="ArchitectureX86" ;;
	arm64) ARCH="ArchitectureArm64" ;;
	aarch64) ARCH="ArchitectureArm64" ;;
	*)
		echo "Unsupported architecture: ${ARCH}"
		exit 2
		;;
	esac

	case "${OS}" in
	Linux) OS_KEY="PlatformLinux" ;;
	Darwin) OS_KEY="PlatformMac" ;;
	*)
		echo "Unsupported OS: ${OS}"
		exit 3
		;;
	esac

	DOWNLOAD_URL=$(echo "${JSON_CONTENT}" | jq -r ".platforms.${OS_KEY}.${ARCH}.downloadUrl")

	if [ "${DOWNLOAD_URL}" == "null" ] || [ -z "${DOWNLOAD_URL}" ]; then
		echo "Failed to find a valid download URL for your platform."
		exit 4
	fi

	echo "Downloading from ${DOWNLOAD_URL}..."
	curl -sL "${DOWNLOAD_URL}" -o "${DOWNLOAD_DIR}/duckman"
	echo "Download complete. duckman is now available in ${DOWNLOAD_DIR}/duckman"

	chmod +x "${DOWNLOAD_DIR}/duckman"
}

function appendIfNotPresent() {
	file="$1"
	line="$2"

	if ! grep -qF "$line" "$file"; then
		echo "$line" >>"$file"
	fi
}

function setupShells() {
	echo "Setting up shell completions and PATH..."

	# Bash
	if [ -f "$HOME/.bashrc"  ]; then
		echo "Configuring bash"
		appendIfNotPresent "$HOME/.bashrc" "export PATH=\"\$HOME/.local/bin:\$PATH\""
		appendIfNotPresent "$HOME/.bashrc" "eval \"\$(duckman completion bash)\""
	fi

	# Zsh
	if [ -f "$HOME/.zshrc" ]; then
		echo "Configuring zsh"
		appendIfNotPresent "$HOME/.zshrc" "export PATH=\"\$HOME/.local/bin:\$PATH\""
		appendIfNotPresent "$HOME/.zshrc" "eval \"\$(duckman completion zsh)\""
	fi

	# Fish
	if [ -f "$HOME/.config/fish/config.fish" ]; then
		echo "Configuring fish"
		appendIfNotPresent "$HOME/.config/fish/config.fish" "set -x PATH \$HOME/.local/bin \$PATH"
		appendIfNotPresent "$HOME/.config/fish/config.fish" "duckman completion fish | source"
	fi
}

function printShellHelp() {
	if [[ ":$PATH:" != *":$HOME/.local/bin:"* ]]; then
		echo ""
		echo "$HOME/.local/bin is not in PATH."
		echo "Add it to your PATH by adding the following line to your shell's configuration file:"
		echo "export PATH=\"\$HOME/.local/bin:\$PATH\""
	fi
	echo "To get autocomplete for duckman, add the following line to your shell's configuration file:"
	echo "eval \"\$(duckman completion <zsh|bash|fish>)\""
}

download

while true; do
    read -rp "Do you want duckman to setup autocomplete and PATH for you? (y/n) " yn
    case $yn in
        [Yy]* ) setupShells; break;;
        [Nn]* ) printShellHelp; break;;
        * ) echo "Please answer yes or no.";;
    esac
done