package checker

import (
	"errors"
	"net/http"
	"strconv"
	"strings"

	sdk "git.happydns.org/checker-sdk-go/checker"
)

// RenderForm implements sdk.CheckerInteractive.
func (p *xmppProvider) RenderForm() []sdk.CheckerOptionField {
	return []sdk.CheckerOptionField{
		{
			Id:          "domain",
			Type:        "string",
			Label:       "Domain",
			Placeholder: "example.com",
			Required:    true,
		},
		{
			Id:      "mode",
			Type:    "string",
			Label:   "Mode",
			Default: "both",
			Choices: []string{"c2s", "s2s", "both"},
		},
		{
			Id:      "timeout",
			Type:    "number",
			Label:   "Per-endpoint timeout (seconds)",
			Default: 10,
		},
	}
}

// ParseForm implements sdk.CheckerInteractive.
func (p *xmppProvider) ParseForm(r *http.Request) (sdk.CheckerOptions, error) {
	domain := strings.TrimSpace(r.FormValue("domain"))
	domain = strings.TrimSuffix(domain, ".")
	if domain == "" {
		return nil, errors.New("domain is required")
	}

	opts := sdk.CheckerOptions{"domain": domain}

	if mode := strings.TrimSpace(r.FormValue("mode")); mode != "" {
		switch mode {
		case "c2s", "s2s", "both":
			opts["mode"] = mode
		default:
			return nil, errors.New("mode must be one of: c2s, s2s, both")
		}
	}

	if to := strings.TrimSpace(r.FormValue("timeout")); to != "" {
		v, err := strconv.ParseFloat(to, 64)
		if err != nil {
			return nil, errors.New("timeout must be a number")
		}
		opts["timeout"] = v
	}

	return opts, nil
}