package model

import (
	"encoding/json"
	"time"

	"github.com/caos/logging"

	caos_errs "github.com/caos/zitadel/internal/errors"
	"github.com/caos/zitadel/internal/eventstore/models"
	"github.com/caos/zitadel/internal/project/model"
	es_model "github.com/caos/zitadel/internal/project/repository/eventsourcing/model"
)

const (
	ProjectKeyProjectID     = "project_id"
	ProjectKeyResourceOwner = "resource_owner"
	ProjectKeyName          = "project_name"
)

type ProjectView struct {
	ProjectID            string    `json:"-" gorm:"column:project_id;primary_key"`
	Name                 string    `json:"name" gorm:"column:project_name"`
	CreationDate         time.Time `json:"-" gorm:"column:creation_date"`
	ChangeDate           time.Time `json:"-" gorm:"column:change_date"`
	State                int32     `json:"-" gorm:"column:project_state"`
	ResourceOwner        string    `json:"-" gorm:"column:resource_owner"`
	ProjectRoleAssertion bool      `json:"projectRoleAssertion" gorm:"column:project_role_assertion"`
	ProjectRoleCheck     bool      `json:"projectRoleCheck" gorm:"column:project_role_check"`
	Sequence             uint64    `json:"-" gorm:"column:sequence"`
}

func ProjectFromModel(project *model.ProjectView) *ProjectView {
	return &ProjectView{
		ProjectID:            project.ProjectID,
		Name:                 project.Name,
		ChangeDate:           project.ChangeDate,
		CreationDate:         project.CreationDate,
		State:                int32(project.State),
		ResourceOwner:        project.ResourceOwner,
		ProjectRoleAssertion: project.ProjectRoleAssertion,
		ProjectRoleCheck:     project.ProjectRoleCheck,
		Sequence:             project.Sequence,
	}
}

func ProjectToModel(project *ProjectView) *model.ProjectView {
	return &model.ProjectView{
		ProjectID:            project.ProjectID,
		Name:                 project.Name,
		ChangeDate:           project.ChangeDate,
		CreationDate:         project.CreationDate,
		State:                model.ProjectState(project.State),
		ResourceOwner:        project.ResourceOwner,
		ProjectRoleAssertion: project.ProjectRoleAssertion,
		ProjectRoleCheck:     project.ProjectRoleCheck,
		Sequence:             project.Sequence,
	}
}

func ProjectsToModel(projects []*ProjectView) []*model.ProjectView {
	result := make([]*model.ProjectView, len(projects))
	for i, p := range projects {
		result[i] = ProjectToModel(p)
	}
	return result
}

func (p *ProjectView) AppendEvent(event *models.Event) (err error) {
	p.ChangeDate = event.CreationDate
	p.Sequence = event.Sequence
	switch event.Type {
	case es_model.ProjectAdded:
		p.State = int32(model.ProjectStateActive)
		p.CreationDate = event.CreationDate
		p.setRootData(event)
		err = p.setData(event)
	case es_model.ProjectChanged:
		err = p.setData(event)
	case es_model.ProjectDeactivated:
		p.State = int32(model.ProjectStateInactive)
	case es_model.ProjectReactivated:
		p.State = int32(model.ProjectStateActive)
	case es_model.ProjectRemoved:
		p.State = int32(model.ProjectStateRemoved)
	}
	return err
}

func (p *ProjectView) setRootData(event *models.Event) {
	p.ProjectID = event.AggregateID
	p.ResourceOwner = event.ResourceOwner
}

func (p *ProjectView) setData(event *models.Event) error {
	if err := json.Unmarshal(event.Data, p); err != nil {
		logging.Log("EVEN-dlo92").WithError(err).Error("could not unmarshal event data")
		return err
	}
	return nil
}

func (p *ProjectView) setProjectData(event *models.Event) error {
	project := new(ProjectView)
	err := project.SetData(event)
	if err != nil {
		return err
	}
	return nil
}

func (p *ProjectView) SetData(event *models.Event) error {
	if err := json.Unmarshal(event.Data, p); err != nil {
		logging.Log("EVEN-sk9Sj").WithError(err).Error("could not unmarshal event data")
		return caos_errs.ThrowInternal(err, "MODEL-s9ols", "Could not unmarshal data")
	}
	return nil
}