#!/bin/bash
#
# Common Initialization for All Scripts
# Sets up error handling, paths, and loads core libraries
#
# Usage: source scripts/lib/core/init.sh
#
# This script:
# - Enables strict error handling (set -euo pipefail)
# - Determines SCRIPTS_ROOT (the scripts/ directory)
# - Loads colors.sh and logger.sh
# - Exports paths for use by other scripts
#

set -euo pipefail

# Determine scripts root directory
# Works whether sourced from scripts/lib/core/ or from anywhere else
if [[ -n "${SCRIPTS_ROOT:-}" ]]; then
    # Already set, use it
    :
elif [[ -f "${BASH_SOURCE[0]}" ]]; then
    # Determine from this file's location (scripts/lib/core/init.sh)
    SCRIPTS_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
else
    # Fallback: assume we're in the project root
    SCRIPTS_ROOT="$(pwd)/scripts"
fi

export SCRIPTS_ROOT
export SCRIPTS_LIB_DIR="${SCRIPTS_ROOT}/lib"
export SCRIPTS_COMMANDS_DIR="${SCRIPTS_ROOT}/commands"
export SCRIPTS_INTERNAL_DIR="${SCRIPTS_ROOT}/internal"

# Determine project root (one level up from scripts/)
export PROJECT_ROOT="${SCRIPTS_ROOT%/scripts}"

# Load core libraries
source "${SCRIPTS_LIB_DIR}/core/colors.sh"
source "${SCRIPTS_LIB_DIR}/core/logger.sh"

# Helper: resolve path relative to project root
resolve_project_path() {
    local path="$1"
    if [[ "$path" = /* ]]; then
        echo "$path"
    else
        echo "${PROJECT_ROOT}/${path}"
    fi
}

# Helper: check if a command exists
command_exists() {
    command -v "$1" &>/dev/null
}

# Helper: require a command or exit with error
require_command() {
    local cmd="$1"
    local install_hint="${2:-}"
    if ! command_exists "$cmd"; then
        log_error "Required command not found: $cmd"
        if [[ -n "$install_hint" ]]; then
            log_info "Install with: $install_hint"
        fi
        exit 1
    fi
}