package main

import (
	"encoding/json"
	"fmt"
	"io"
	"math/rand"
	"net/http"
)

func commandCatch(p *PokedexConfig, a *string) error {
	if *a == "" {
		return fmt.Errorf("you need to specify a Pokemon to catch")
	}
	var pokemonName string
	var baseUrl string
	for _, encounter := range p.LocalPokemons.PokemonEncounters {
		if encounter.PokemonSummary.Name == *a {
			pokemonName = *a
			baseUrl = encounter.PokemonSummary.DataUrl
		}
	}
	if pokemonName == "" {
		baseUrl = "https://pokeapi.co/api/v2/pokemon/" + *a
	}
	// if pokemonName != *a {
	// 	fmt.Println("this pokemon is not present in the current area")
	// 	return nil
	// }

	body, exists := p.Cache.Get(baseUrl)
	if !exists {
		client := http.Client{}

		resp, err := client.Get(baseUrl)
		if err != nil {
			return fmt.Errorf("could not make request to Pokedex API! Err: %w", err)
		}
		body, err = io.ReadAll(resp.Body)
		defer resp.Body.Close()
		if resp.StatusCode > 299 {
			return fmt.Errorf("request returned non-200 code! Code: %v Body: %v", resp.StatusCode, body)
		}
		if err != nil {
			return fmt.Errorf("could not read request body! Err: %w", err)
		}
		p.Cache.Add(baseUrl, body)
	}
	var pokemon PokemonDetails
	if err := json.Unmarshal(body, &pokemon); err != nil {
		return fmt.Errorf("could not unmarshal Pokemon data! err: %w", err)
	}
	fmt.Printf("Throwing a Pokeball at %s...\n", *a)
	catchSuccess := rand.Intn(pokemon.BaseExperience)
	if 2*catchSuccess >= pokemon.BaseExperience {
		fmt.Printf("%s was caught!\n", pokemon.Name)
		p.CaughtPokemon = append(p.CaughtPokemon, pokemon)
		return nil
	}
	fmt.Printf("%s escaped!\n", *a)

	return nil
}