#!/usr/bin/env bash
# Input validation functions
# Usage: source "$(dirname "$0")/validation.sh"
# Requires: logging.sh

# Validate project name (alphanumeric, hyphens, underscores)
validate_project_name() {
    local name="$1"
    if [ -z "$name" ]; then
        log_error "Project name is required"
        return 1
    fi

    if [[ ! "$name" =~ ^[a-zA-Z0-9_-]+$ ]]; then
        log_error "Invalid project name: $name (must be alphanumeric with hyphens/underscores only)"
        return 1
    fi

    return 0
}

# Validate environment name
validate_environment() {
    local env="$1"
    local valid_envs=("development" "dev" "staging" "stg" "production" "prod" "test")

    if [ -z "$env" ]; then
        log_error "Environment is required"
        return 1
    fi

    for valid_env in "${valid_envs[@]}"; do
        if [ "$env" = "$valid_env" ]; then
            return 0
        fi
    done

    log_error "Invalid environment: $env (must be one of: ${valid_envs[*]})"
    return 1
}

# Validate URL format
validate_url() {
    local url="$1"
    if [ -z "$url" ]; then
        log_error "URL is required"
        return 1
    fi

    if [[ ! "$url" =~ ^https?:// ]]; then
        log_error "Invalid URL format: $url (must start with http:// or https://)"
        return 1
    fi

    return 0
}

# Validate port number
validate_port() {
    local port="$1"
    if [ -z "$port" ]; then
        log_error "Port is required"
        return 1
    fi

    if ! [[ "$port" =~ ^[0-9]+$ ]] || [ "$port" -lt 1 ] || [ "$port" -gt 65535 ]; then
        log_error "Invalid port: $port (must be 1-65535)"
        return 1
    fi

    return 0
}

# Validate non-empty string
validate_non_empty() {
    local value="$1"
    local name="${2:-Value}"

    if [ -z "$value" ]; then
        log_error "$name is required and cannot be empty"
        return 1
    fi

    return 0
}