package cmd

import (
	"fmt"
	"strings"

	"github.com/spf13/cobra"
)

var languagesCmd = &cobra.Command{
	Use:   "languages",
	Short: "Show supported languages and their mappings",
	Long: `Display all supported languages for the 'devour get' command
along with their base URLs and examples.

This helps you discover what documentation sources are available
and how to reference them quickly.`,
	RunE: runLanguages,
}

func init() {
	rootCmd.AddCommand(languagesCmd)
}

func runLanguages(cmd *cobra.Command, args []string) error {
	fmt.Println("🌐 Devour Supported Languages")
	fmt.Println("═══════════════════════════════════════════════════════════════")
	fmt.Println()

	languages := []struct {
		langs    []string
		url      string
		examples []string
	}{
		{
			langs:    []string{"go", "golang"},
			url:      "https://pkg.go.dev/{package}",
			examples: []string{"devour get go http", "devour get go fmt", "devour get golang json"},
		},
		{
			langs:    []string{"rust"},
			url:      "https://docs.rs/{crate}/latest/{crate}/",
			examples: []string{"devour get rust tokio", "devour get rust serde", "devour get rust clap"},
		},
		{
			langs:    []string{"python", "py"},
			url:      "https://docs.python.org/3/library/{module}.html",
			examples: []string{"devour get python asyncio", "devour get py requests", "devour get python stdlib"},
		},
		{
			langs:    []string{"java"},
			url:      "https://docs.oracle.com/javase/8/docs/api/{package}.html",
			examples: []string{"devour get java string", "devour get java arraylist"},
		},
		{
			langs:    []string{"spring"},
			url:      "https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#{section}",
			examples: []string{"devour get spring boot", "devour get spring testing"},
		},
		{
			langs:    []string{"typescript", "ts"},
			url:      "https://www.typescriptlang.org/docs/handbook/{topic}.html",
			examples: []string{"devour get typescript interfaces", "devour get ts decorators"},
		},
		{
			langs:    []string{"react"},
			url:      "https://react.dev/reference/react/{feature}",
			examples: []string{"devour get react hooks", "devour get react components", "devour get react state"},
		},
		{
			langs:    []string{"vue"},
			url:      "https://vuejs.org/guide/{topic}.html",
			examples: []string{"devour get vue components", "devour get vue reactivity"},
		},
		{
			langs:    []string{"nuxt"},
			url:      "https://nuxt.com/docs/guide/{topic}",
			examples: []string{"devour get nuxt routing", "devour get nuxt middleware"},
		},
		{
			langs:    []string{"docker"},
			url:      "https://docs.docker.com/{topic}",
			examples: []string{"devour get docker compose", "devour get docker build", "devour get docker networking"},
		},
		{
			langs:    []string{"cloudflare", "cf"},
			url:      "https://developers.cloudflare.com/{topic}",
			examples: []string{"devour get cloudflare workers", "devour get cf pages", "devour get cloudflare dns"},
		},
		{
			langs:    []string{"astro"},
			url:      "https://docs.astro.build/en/guides/{topic}",
			examples: []string{"devour get astro routing", "devour get astro components"},
		},
	}

	for _, lang := range languages {
		fmt.Printf("🔷 %s\n", strings.Join(lang.langs, ", "))
		fmt.Printf("   URL: %s\n", lang.url)
		fmt.Printf("   Examples:\n")
		for _, example := range lang.examples {
			fmt.Printf("     • %s\n", example)
		}
		fmt.Println()
	}

	fmt.Println("💡 Pro Tips:")
	fmt.Println("   • Use 'devour get <language> help' for language-specific help")
	fmt.Println("   • Add --format markdown for enhanced documentation")
	fmt.Println("   • Most languages support common aliases (e.g., py → python)")
	fmt.Println()
	fmt.Println("🚀 Quick Start:")
	fmt.Println("   devour get go http --format markdown")
	fmt.Println("   devour get python asyncio")
	fmt.Println("   devour get react hooks")

	return nil
}