package eventstore

import (
	"context"

	"github.com/caos/zitadel/internal/errors"
	iam_model "github.com/caos/zitadel/internal/iam/model"
	iam_view "github.com/caos/zitadel/internal/iam/repository/view/model"
	"github.com/caos/zitadel/internal/telemetry/tracing"

	"github.com/caos/logging"
	admin_model "github.com/caos/zitadel/internal/admin/model"
	admin_view "github.com/caos/zitadel/internal/admin/repository/eventsourcing/view"
	"github.com/caos/zitadel/internal/config/systemdefaults"
	"github.com/caos/zitadel/internal/eventstore"
	es_models "github.com/caos/zitadel/internal/eventstore/models"
	"github.com/caos/zitadel/internal/eventstore/sdk"
	iam_es_model "github.com/caos/zitadel/internal/iam/repository/view/model"
	org_model "github.com/caos/zitadel/internal/org/model"
	org_es "github.com/caos/zitadel/internal/org/repository/eventsourcing"
	"github.com/caos/zitadel/internal/org/repository/view/model"
	usr_es "github.com/caos/zitadel/internal/user/repository/eventsourcing"
)

const (
	orgOwnerRole = "ORG_OWNER"
)

type OrgRepo struct {
	Eventstore     eventstore.Eventstore
	OrgEventstore  *org_es.OrgEventstore
	UserEventstore *usr_es.UserEventstore

	View *admin_view.View

	SearchLimit    uint64
	SystemDefaults systemdefaults.SystemDefaults
}

func (repo *OrgRepo) SetUpOrg(ctx context.Context, setUp *admin_model.SetupOrg) (*admin_model.SetupOrg, error) {
	pwPolicy, err := repo.View.PasswordComplexityPolicyByAggregateID(repo.SystemDefaults.IamID)
	if err != nil {
		return nil, err
	}
	pwPolicyView := iam_view.PasswordComplexityViewToModel(pwPolicy)
	orgPolicy, err := repo.GetDefaultOrgIAMPolicy(ctx)
	if err != nil {
		return nil, err
	}
	users := func(ctx context.Context, domain string) ([]*es_models.Aggregate, error) {
		userIDs, err := repo.View.UserIDsByDomain(domain)
		if err != nil {
			return nil, err
		}
		return repo.UserEventstore.PrepareDomainClaimed(ctx, userIDs)
	}
	org, aggregates, err := repo.OrgEventstore.PrepareCreateOrg(ctx, setUp.Org, users)
	if err != nil {
		return nil, err
	}
	user, userAggregates, err := repo.UserEventstore.PrepareCreateUser(ctx, setUp.User, pwPolicyView, orgPolicy, org.AggregateID)
	if err != nil {
		return nil, err
	}

	aggregates = append(aggregates, userAggregates...)
	setupModel := &Setup{Org: org, User: user}

	member := org_model.NewOrgMemberWithRoles(org.AggregateID, user.AggregateID, orgOwnerRole)
	_, memberAggregate, err := repo.OrgEventstore.PrepareAddOrgMember(ctx, member, org.AggregateID)
	if err != nil {
		return nil, err
	}
	aggregates = append(aggregates, memberAggregate)

	err = sdk.PushAggregates(ctx, repo.Eventstore.PushAggregates, setupModel.AppendEvents, aggregates...)
	if err != nil {
		return nil, err
	}

	return SetupToModel(setupModel), nil
}

func (repo *OrgRepo) OrgByID(ctx context.Context, id string) (*org_model.Org, error) {
	return repo.OrgEventstore.OrgByID(ctx, org_model.NewOrg(id))
}

func (repo *OrgRepo) SearchOrgs(ctx context.Context, query *org_model.OrgSearchRequest) (*org_model.OrgSearchResult, error) {
	query.EnsureLimit(repo.SearchLimit)
	sequence, err := repo.View.GetLatestOrgSequence()
	logging.Log("EVENT-LXo9w").OnError(err).WithField("traceID", tracing.TraceIDFromCtx(ctx)).Warn("could not read latest iam sequence")
	orgs, count, err := repo.View.SearchOrgs(query)
	if err != nil {
		return nil, err
	}
	result := &org_model.OrgSearchResult{
		Offset:      query.Offset,
		Limit:       query.Limit,
		TotalResult: count,
		Result:      model.OrgsToModel(orgs),
	}
	if err == nil {
		result.Sequence = sequence.CurrentSequence
		result.Timestamp = sequence.LastSuccessfulSpoolerRun
	}
	return result, nil
}

func (repo *OrgRepo) IsOrgUnique(ctx context.Context, name, domain string) (isUnique bool, err error) {
	return repo.OrgEventstore.IsOrgUnique(ctx, name, domain)
}

func (repo *OrgRepo) GetOrgIAMPolicyByID(ctx context.Context, id string) (*iam_model.OrgIAMPolicyView, error) {
	policy, err := repo.View.OrgIAMPolicyByAggregateID(id)
	if errors.IsNotFound(err) {
		return repo.GetDefaultOrgIAMPolicy(ctx)
	}
	if err != nil {
		return nil, err
	}
	return iam_es_model.OrgIAMViewToModel(policy), err
}

func (repo *OrgRepo) GetDefaultOrgIAMPolicy(ctx context.Context) (*iam_model.OrgIAMPolicyView, error) {
	policy, err := repo.View.OrgIAMPolicyByAggregateID(repo.SystemDefaults.IamID)
	if err != nil {
		return nil, err
	}
	policy.Default = true
	return iam_es_model.OrgIAMViewToModel(policy), err
}

func (repo *OrgRepo) CreateOrgIAMPolicy(ctx context.Context, policy *iam_model.OrgIAMPolicy) (*iam_model.OrgIAMPolicy, error) {
	return repo.OrgEventstore.AddOrgIAMPolicy(ctx, policy)
}

func (repo *OrgRepo) ChangeOrgIAMPolicy(ctx context.Context, policy *iam_model.OrgIAMPolicy) (*iam_model.OrgIAMPolicy, error) {
	return repo.OrgEventstore.ChangeOrgIAMPolicy(ctx, policy)
}

func (repo *OrgRepo) RemoveOrgIAMPolicy(ctx context.Context, id string) error {
	return repo.OrgEventstore.RemoveOrgIAMPolicy(ctx, id)
}