#!/usr/bin/env nu
# Infrastructure Validation Script
# Validates generated infrastructure configs using format-specific tools

use std log

def main [--config-dir: string = "provisioning/platform/infrastructure"] {
    log info $"Validating infrastructure configs in: ($config_dir)"

    let errors = []
    let warnings = []

    # Validate Docker Compose files
    validate_docker_compose $config_dir

    # Validate Kubernetes manifests
    validate_kubernetes $config_dir

    # Validate Nginx configurations
    validate_nginx $config_dir

    # Validate Prometheus configurations
    validate_prometheus $config_dir

    log info "✅ Infrastructure validation complete!"
}

def validate_docker_compose [config_dir: string] {
    log info "Validating Docker Compose files..."

    let dc_files_result = (do { ls -la $"($config_dir)/docker-compose/*.yaml" } | complete)
    let dc_files = if $dc_files_result.exit_code == 0 {
        ($dc_files_result.stdout | lines | each { |line| $line | from json } | each { |file| $file.name })
    } else {
        []
    }

    for file in $dc_files {
        let filename = $file | path basename
        let r = (do { ^docker-compose -f $file config --quiet } | complete)
        if $r.exit_code == 0 {
            log info $"  ✅ ($filename)"
        } else {
            log warning $"  ⚠️  ($filename): validation error"
        }
    }
}

def validate_kubernetes [config_dir: string] {
    log info "Validating Kubernetes manifests..."

    let k8s_files_result = (do { ls -la $"($config_dir)/kubernetes/**/*.yaml" } | complete)
    let k8s_files = if $k8s_files_result.exit_code == 0 {
        ($k8s_files_result.stdout | lines | each { |line| $line | from json } | each { |file| $file.name })
    } else {
        []
    }

    for file in $k8s_files {
        let filename = $file | path basename
        let r = (do { ^kubectl apply --dry-run=client -f $file out+err> /dev/null } | complete)
        if $r.exit_code == 0 {
            log info $"  ✅ ($filename)"
        } else {
            log warning $"  ⚠️  ($filename): validation error"
        }
    }
}

def validate_nginx [config_dir: string] {
    log info "Validating Nginx configurations..."

    let nginx_files_result = (do { ls -la $"($config_dir)/nginx/*.conf" } | complete)
    let nginx_files = if $nginx_files_result.exit_code == 0 {
        ($nginx_files_result.stdout | lines | each { |line| $line | from json } | each { |file| $file.name })
    } else {
        []
    }

    for file in $nginx_files {
        let filename = $file | path basename
        let r = (do { ^nginx -t -c $file out+err> /dev/null } | complete)
        if $r.exit_code == 0 {
            log info $"  ✅ ($filename)"
        } else {
            log info $"  ℹ️  ($filename): nginx binary not available"
        }
    }
}

def validate_prometheus [config_dir: string] {
    log info "Validating Prometheus configurations..."

    let prom_files_result = (do { ls -la $"($config_dir)/prometheus/*.yml" } | complete)
    let prom_files = if $prom_files_result.exit_code == 0 {
        ($prom_files_result.stdout | lines | each { |line| $line | from json } | each { |file| $file.name })
    } else {
        []
    }

    for file in $prom_files {
        let filename = $file | path basename
        let r = (do { ^promtool check config $file out+err> /dev/null } | complete)
        if $r.exit_code == 0 {
            log info $"  ✅ ($filename)"
        } else {
            log info $"  ℹ️  ($filename): promtool not available"
        }
    }
}