package model

import (
	"encoding/json"
	"github.com/caos/logging"
	"github.com/caos/zitadel/internal/crypto"
	es_models "github.com/caos/zitadel/internal/eventstore/models"
	"github.com/caos/zitadel/internal/project/model"
	"reflect"
)

type OIDCConfig struct {
	es_models.ObjectRoot
	AppID                  string              `json:"appId"`
	ClientID               string              `json:"clientId,omitempty"`
	ClientSecret           *crypto.CryptoValue `json:"clientSecret,omitempty"`
	RedirectUris           []string            `json:"redirectUris,omitempty"`
	ResponseTypes          []int32             `json:"responseTypes,omitempty"`
	GrantTypes             []int32             `json:"grantTypes,omitempty"`
	ApplicationType        int32               `json:"applicationType,omitempty"`
	AuthMethodType         int32               `json:"authMethodType,omitempty"`
	PostLogoutRedirectUris []string            `json:"postLogoutRedirectUris,omitempty"`
}

func (c *OIDCConfig) Changes(changed *OIDCConfig) map[string]interface{} {
	changes := make(map[string]interface{}, 1)
	changes["appId"] = c.AppID
	if !reflect.DeepEqual(c.RedirectUris, changed.RedirectUris) {
		changes["redirectUris"] = changed.RedirectUris
	}
	if !reflect.DeepEqual(c.ResponseTypes, changed.ResponseTypes) {
		changes["responseTypes"] = changed.ResponseTypes
	}
	if !reflect.DeepEqual(c.GrantTypes, changed.GrantTypes) {
		changes["grantTypes"] = changed.GrantTypes
	}
	if c.ApplicationType != changed.ApplicationType {
		changes["applicationType"] = changed.ApplicationType
	}
	if c.AuthMethodType != changed.AuthMethodType {
		changes["authMethodType"] = changed.AuthMethodType
	}
	if !reflect.DeepEqual(c.PostLogoutRedirectUris, changed.PostLogoutRedirectUris) {
		changes["postLogoutRedirectUris"] = changed.PostLogoutRedirectUris
	}
	return changes
}

func OIDCConfigFromModel(config *model.OIDCConfig) *OIDCConfig {
	responseTypes := make([]int32, len(config.ResponseTypes))
	for i, rt := range config.ResponseTypes {
		responseTypes[i] = int32(rt)
	}
	grantTypes := make([]int32, len(config.GrantTypes))
	for i, rt := range config.GrantTypes {
		grantTypes[i] = int32(rt)
	}
	return &OIDCConfig{
		ObjectRoot:             config.ObjectRoot,
		AppID:                  config.AppID,
		ClientID:               config.ClientID,
		ClientSecret:           config.ClientSecret,
		RedirectUris:           config.RedirectUris,
		ResponseTypes:          responseTypes,
		GrantTypes:             grantTypes,
		ApplicationType:        int32(config.ApplicationType),
		AuthMethodType:         int32(config.AuthMethodType),
		PostLogoutRedirectUris: config.PostLogoutRedirectUris,
	}
}

func OIDCConfigToModel(config *OIDCConfig) *model.OIDCConfig {
	responseTypes := make([]model.OIDCResponseType, len(config.ResponseTypes))
	for i, rt := range config.ResponseTypes {
		responseTypes[i] = model.OIDCResponseType(rt)
	}
	grantTypes := make([]model.OIDCGrantType, len(config.GrantTypes))
	for i, rt := range config.GrantTypes {
		grantTypes[i] = model.OIDCGrantType(rt)
	}
	return &model.OIDCConfig{
		ObjectRoot:             config.ObjectRoot,
		AppID:                  config.AppID,
		ClientID:               config.ClientID,
		ClientSecret:           config.ClientSecret,
		RedirectUris:           config.RedirectUris,
		ResponseTypes:          responseTypes,
		GrantTypes:             grantTypes,
		ApplicationType:        model.OIDCApplicationType(config.ApplicationType),
		AuthMethodType:         model.OIDCAuthMethodType(config.AuthMethodType),
		PostLogoutRedirectUris: config.PostLogoutRedirectUris,
	}
}

func (p *Project) appendAddOIDCConfigEvent(event *es_models.Event) error {
	config := new(OIDCConfig)
	err := config.setData(event)
	if err != nil {
		return err
	}
	config.ObjectRoot.CreationDate = event.CreationDate
	if i, a := GetApplication(p.Applications, config.AppID); a != nil {
		p.Applications[i].Type = int32(model.AppTypeOIDC)
		p.Applications[i].OIDCConfig = config
	}
	return nil
}

func (p *Project) appendChangeOIDCConfigEvent(event *es_models.Event) error {
	config := new(OIDCConfig)
	err := config.setData(event)
	if err != nil {
		return err
	}

	if i, a := GetApplication(p.Applications, config.AppID); a != nil {
		p.Applications[i].OIDCConfig.setData(event)
	}
	return nil
}

func (o *OIDCConfig) setData(event *es_models.Event) error {
	o.ObjectRoot.AppendEvent(event)
	if err := json.Unmarshal(event.Data, o); err != nil {
		logging.Log("EVEN-d8e3s").WithError(err).Error("could not unmarshal event data")
		return err
	}
	return nil
}