#!/bin/bash
# dev_install.sh — symlinks the OS-appropriate plugin into the web server for local development.
# Run once after cloning. Re-run if the repo is moved.
# Safe to re-run: removes stale symlink before recreating.
#
# Plugin layout:
#   Plugin/unraid/   ← Unraid plugin (PHP, served by emhttp at /usr/local/emhttp/plugins/)
#   Plugin/debian/   ← future
#   Plugin/<os>/     ← future
#
# Adding a new OS:
#   1. Create Plugin/<os>/ with the OS-appropriate web app files
#   2. Add detection + TARGET path below

set -euo pipefail

PLUGIN_NAME="varaverk"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

# ── Detect OS ────────────────────────────────────────────────────────────────

detect_os() {
    if   [[ -f /etc/unraid-version ]];  then echo "unraid"
    elif [[ -f /etc/debian_version ]];  then echo "debian"
    elif [[ -f /etc/arch-release ]];    then echo "arch"
    else echo "unknown"; fi
}

OS="${1:-$(detect_os)}"   # accept override: ./dev_install.sh unraid

# ── OS-specific install target ────────────────────────────────────────────────

case "$OS" in
    unraid)
        SOURCE="$SCRIPT_DIR/unraid"
        TARGET="/usr/local/emhttp/plugins/$PLUGIN_NAME"
        ;;
    debian|arch)
        echo "OS '$OS' detected but plugin target path not yet defined."
        echo "Add the TARGET= line for this OS in dev_install.sh."
        exit 1
        ;;
    unknown|*)
        echo "Unsupported OS — could not detect from /etc/*-version markers."
        echo "Usage: $0 <os>   (e.g. $0 unraid)"
        exit 1
        ;;
esac

# ── Install ───────────────────────────────────────────────────────────────────

if [[ ! -d "$SOURCE" ]]; then
    echo "ERROR: Plugin source not found: $SOURCE"
    exit 1
fi

if [[ -L "$TARGET" ]]; then
    echo "Removing existing symlink: $TARGET"
    rm "$TARGET"
elif [[ -d "$TARGET" ]]; then
    echo "ERROR: $TARGET exists as a real directory — remove it manually first."
    exit 1
fi

ln -s "$SOURCE" "$TARGET"
echo ""
echo "OS:     $OS"
echo "Source: $SOURCE"
echo "Target: $TARGET"
echo ""
echo "Plugin linked. Changes in Plugin/$OS/ take effect immediately."