package command

import (
	"time"

	"github.com/zitadel/zitadel/internal/domain"
	"github.com/zitadel/zitadel/internal/eventstore"
	"github.com/zitadel/zitadel/internal/repository/policy"
)

type LoginPolicyWriteModel struct {
	eventstore.WriteModel

	AllowUserNamePassword      bool
	AllowRegister              bool
	AllowExternalIDP           bool
	ForceMFA                   bool
	HidePasswordReset          bool
	IgnoreUnknownUsernames     bool
	AllowDomainDiscovery       bool
	PasswordlessType           domain.PasswordlessType
	DefaultRedirectURI         string
	PasswordCheckLifetime      time.Duration
	ExternalLoginCheckLifetime time.Duration
	MFAInitSkipLifetime        time.Duration
	SecondFactorCheckLifetime  time.Duration
	MultiFactorCheckLifetime   time.Duration
	State                      domain.PolicyState
}

func (wm *LoginPolicyWriteModel) Reduce() error {
	for _, event := range wm.Events {
		switch e := event.(type) {
		case *policy.LoginPolicyAddedEvent:
			wm.AllowRegister = e.AllowRegister
			wm.AllowUserNamePassword = e.AllowUserNamePassword
			wm.AllowExternalIDP = e.AllowExternalIDP
			wm.ForceMFA = e.ForceMFA
			wm.PasswordlessType = e.PasswordlessType
			wm.HidePasswordReset = e.HidePasswordReset
			wm.IgnoreUnknownUsernames = e.IgnoreUnknownUsernames
			wm.AllowDomainDiscovery = e.AllowDomainDiscovery
			wm.DefaultRedirectURI = e.DefaultRedirectURI
			wm.PasswordCheckLifetime = e.PasswordCheckLifetime
			wm.ExternalLoginCheckLifetime = e.ExternalLoginCheckLifetime
			wm.MFAInitSkipLifetime = e.MFAInitSkipLifetime
			wm.SecondFactorCheckLifetime = e.SecondFactorCheckLifetime
			wm.MultiFactorCheckLifetime = e.MultiFactorCheckLifetime
			wm.State = domain.PolicyStateActive
		case *policy.LoginPolicyChangedEvent:
			if e.AllowRegister != nil {
				wm.AllowRegister = *e.AllowRegister
			}
			if e.AllowUserNamePassword != nil {
				wm.AllowUserNamePassword = *e.AllowUserNamePassword
			}
			if e.AllowExternalIDP != nil {
				wm.AllowExternalIDP = *e.AllowExternalIDP
			}
			if e.ForceMFA != nil {
				wm.ForceMFA = *e.ForceMFA
			}
			if e.HidePasswordReset != nil {
				wm.HidePasswordReset = *e.HidePasswordReset
			}
			if e.IgnoreUnknownUsernames != nil {
				wm.IgnoreUnknownUsernames = *e.IgnoreUnknownUsernames
			}
			if e.AllowDomainDiscovery != nil {
				wm.AllowDomainDiscovery = *e.AllowDomainDiscovery
			}
			if e.PasswordlessType != nil {
				wm.PasswordlessType = *e.PasswordlessType
			}
			if e.DefaultRedirectURI != nil {
				wm.DefaultRedirectURI = *e.DefaultRedirectURI
			}
			if e.PasswordCheckLifetime != nil {
				wm.PasswordCheckLifetime = *e.PasswordCheckLifetime
			}
			if e.ExternalLoginCheckLifetime != nil {
				wm.ExternalLoginCheckLifetime = *e.ExternalLoginCheckLifetime
			}
			if e.MFAInitSkipLifetime != nil {
				wm.MFAInitSkipLifetime = *e.MFAInitSkipLifetime
			}
			if e.SecondFactorCheckLifetime != nil {
				wm.SecondFactorCheckLifetime = *e.SecondFactorCheckLifetime
			}
			if e.MultiFactorCheckLifetime != nil {
				wm.MultiFactorCheckLifetime = *e.MultiFactorCheckLifetime
			}
		case *policy.LoginPolicyRemovedEvent:
			wm.State = domain.PolicyStateRemoved
		}
	}
	return wm.WriteModel.Reduce()
}