package server

import (
	"fmt"
	"strconv"
	"strings"

	"github.com/eosswedenorg/eosio-api-healthcheck/internal/api"
)

func ParseArguments(args []string) api.ApiArguments {
	a := api.ApiArguments{
		NumBlocks: 10,
	}

	// 1. url (scheme + ip/domain + port)
	a.Url = args[0]

	// 2. num blocks
	if len(args) > 1 {
		num, err := strconv.ParseInt(args[1], 10, 32)
		if err == nil {
			a.NumBlocks = int(num)
		}
	}

	// 3. Host
	if len(args) > 2 {
		a.Host = args[2]
	}

	return a
}

func ParseRequest(request string) (api.ApiInterface, error) {
	factories := map[string]api.Factory{
		"v1":       api.EosioV1Factory,
		"v2":       api.EosioV2Factory,
		"contract": api.AtomicAssetFactory,
		"debug":    api.DebugApiFactory,
	}

	// Parse arguments.
	// -------------------
	p := strings.Split(strings.TrimSpace(request), "|")

	if len(p) < 2 {
		return nil, fmt.Errorf("invalid number of parameters in agent request")
	}

	a := ParseArguments(p[1:])

	if factory, ok := factories[p[0]]; ok {
		return factory(a), nil
	}

	return nil, fmt.Errorf("invalid API '%s'", p[0])
}