#!/usr/bin/env bash
set -euo pipefail

# curlpad - Scratchpad for curl.
# Copyright (C) 2023 Akshat Kotpalliwar <inquiry.akshatkotpalliwar@gmail.com>
# SPDX-License-Identifier: GPL-3.0-or-later

# Color codes
C_RESET=$'\033[0m'
C_BLUE=$'\033[38;2;66;135;245m'      # #4287f5
C_GREEN=$'\033[38;2;76;175;80m'      # #4caf50
C_RED=$'\033[38;2;244;67;54m'        # #f44336
C_YELLOW=$'\033[38;2;255;193;7m'     # #ffc107
C_BOLD=$'\033[1m'

REPO_URL="https://github.com/IntegerAlex/curl-pad"
BINARY_URL="https://github.com/IntegerAlex/curl-pad/releases/latest/download/curlpad"
INSTALL_DIR="${HOME}/.local/bin"

echo ""
echo "${C_BOLD}${C_BLUE}curlpad installer${C_RESET}"
echo "${C_BLUE}A simple curl editor for the command line${C_RESET}"
echo ""
echo "Author:  Akshat Kotpalliwar <inquiry.akshatkotpalliwar@gmail.com>"
echo "License: GPL-3.0-or-later"
echo "Repo:    ${REPO_URL}"
echo ""
echo "${C_BOLD}Installing curlpad...${C_RESET}"
echo ""

# Detect platform
OS="$(uname -s)"
ARCH="$(uname -m)"

if [[ "$OS" != "Linux" && "$OS" != "Darwin" ]]; then
  echo "${C_RED}[ERROR] Unsupported OS: $OS${C_RESET}" >&2
  echo "curlpad supports Linux and macOS only." >&2
  exit 1
fi

if [[ "$ARCH" != "x86_64" && "$ARCH" != "aarch64" && "$ARCH" != "arm64" ]]; then
  echo "${C_YELLOW}[WARNING] Architecture $ARCH may not be supported. Trying anyway...${C_RESET}" >&2
fi

# Check dependencies
if ! command -v curl >/dev/null 2>&1; then
  echo "${C_RED}[ERROR] curl is required but not installed.${C_RESET}" >&2
  exit 1
fi

# Create install directory
mkdir -p "$INSTALL_DIR"

# Download binary
echo "Downloading curlpad binary..."
if ! curl -fsSL "$BINARY_URL" -o "$INSTALL_DIR/curlpad"; then
  echo "${C_RED}[ERROR] Failed to download binary from $BINARY_URL${C_RESET}" >&2
  echo "You can manually download from: $REPO_URL/releases" >&2
  exit 1
fi

# Make executable
chmod +x "$INSTALL_DIR/curlpad"

echo "${C_GREEN}[SUCCESS] curlpad installed to $INSTALL_DIR/curlpad${C_RESET}"
echo ""

# Check if directory is on PATH
case ":$PATH:" in
  *:"\$INSTALL_DIR":*)
    echo "${C_GREEN}[OK] $INSTALL_DIR is on your PATH${C_RESET}"
    ;;
  *)
    echo "${C_YELLOW}[WARNING] $INSTALL_DIR is not on your PATH.${C_RESET}"
    echo "Add this to your shell profile (~/.bashrc, ~/.zshrc, etc.):"
    echo ""
    echo "  export PATH="$INSTALL_DIR:\$PATH""
    echo ""
    ;;
esac

echo ""
echo "${C_BOLD}${C_GREEN}Installation complete! Run 'curlpad' to get started.${C_RESET}"
echo ""