// Copyright © 2023 Ory Corp
// SPDX-License-Identifier: Apache-2.0

package email

import (
	"context"
	"encoding/json"
	"net/http"
	"os"
	"strings"

	"github.com/ory/kratos/courier/template"
)

type (
	LoginCodeValid struct {
		deps  template.Dependencies
		model *LoginCodeValidModel
	}
	LoginCodeValidModel struct {
		To                 string                       `json:"to"`
		LoginCode          string                       `json:"login_code"`
		Identity           map[string]any               `json:"identity"`
		RequestURL         string                       `json:"request_url"`
		TransientPayload   map[string]any               `json:"transient_payload"`
		ExpiresInMinutes   int                          `json:"expires_in_minutes"`
		OAuth2LoginRequest *template.OAuth2LoginRequest `json:"oauth2_login_request,omitempty"`
		UserRequestHeaders http.Header                  `json:"-"`
	}
)

func NewLoginCodeValid(d template.Dependencies, m *LoginCodeValidModel) *LoginCodeValid {
	return &LoginCodeValid{deps: d, model: m}
}

func (t *LoginCodeValid) EmailRecipient() (string, error) {
	return t.model.To, nil
}

func (t *LoginCodeValid) EmailSubject(ctx context.Context) (string, error) {
	subject, err := template.LoadText(ctx, t.deps, os.DirFS(t.deps.CourierConfig().CourierTemplatesRoot(ctx)), "login_code/valid/email.subject.gotmpl", "login_code/valid/email.subject*", t.model, t.deps.CourierConfig().CourierTemplatesLoginCodeValid(ctx).Subject)

	return strings.TrimSpace(subject), err
}

func (t *LoginCodeValid) EmailBody(ctx context.Context) (string, error) {
	return template.LoadHTML(ctx, t.deps, os.DirFS(t.deps.CourierConfig().CourierTemplatesRoot(ctx)), "login_code/valid/email.body.gotmpl", "login_code/valid/email.body*", t.model, t.deps.CourierConfig().CourierTemplatesLoginCodeValid(ctx).Body.HTML)
}

func (t *LoginCodeValid) EmailBodyPlaintext(ctx context.Context) (string, error) {
	return template.LoadText(ctx, t.deps, os.DirFS(t.deps.CourierConfig().CourierTemplatesRoot(ctx)), "login_code/valid/email.body.plaintext.gotmpl", "login_code/valid/email.body.plaintext*", t.model, t.deps.CourierConfig().CourierTemplatesLoginCodeValid(ctx).Body.PlainText)
}

func (t *LoginCodeValid) MarshalJSON() ([]byte, error) {
	return json.Marshal(t.model)
}

func (t *LoginCodeValid) TemplateType() template.TemplateType {
	return template.TypeLoginCodeValid
}

func (t *LoginCodeValid) RequestHeaders() http.Header {
	return t.model.UserRequestHeaders
}