package persona

import (
	"context"

	domusecase "haixun-backend/internal/model/persona/domain/usecase"
	"haixun-backend/internal/svc"
	"haixun-backend/internal/types"
)

type ListPersonasLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewListPersonasLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ListPersonasLogic {
	return &ListPersonasLogic{ctx: ctx, svcCtx: svcCtx}
}

func (l *ListPersonasLogic) ListPersonas() (*types.ListPersonasData, error) {
	tenantID, uid, err := actorFrom(l.ctx)
	if err != nil {
		return nil, err
	}
	result, err := l.svcCtx.Persona.List(l.ctx, tenantID, uid)
	if err != nil {
		return nil, err
	}
	return toListData(result), nil
}

type CreatePersonaLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewCreatePersonaLogic(ctx context.Context, svcCtx *svc.ServiceContext) *CreatePersonaLogic {
	return &CreatePersonaLogic{ctx: ctx, svcCtx: svcCtx}
}

func (l *CreatePersonaLogic) CreatePersona(req *types.CreatePersonaReq) (*types.PersonaData, error) {
	tenantID, uid, err := actorFrom(l.ctx)
	if err != nil {
		return nil, err
	}
	displayName := ""
	if req != nil {
		displayName = req.DisplayName
	}
	item, err := l.svcCtx.Persona.Create(l.ctx, domusecase.CreateRequest{
		TenantID:    tenantID,
		OwnerUID:    uid,
		DisplayName: displayName,
	})
	if err != nil {
		return nil, err
	}
	out := toPersonaData(*item)
	return &out, nil
}

type GetPersonaLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewGetPersonaLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetPersonaLogic {
	return &GetPersonaLogic{ctx: ctx, svcCtx: svcCtx}
}

func (l *GetPersonaLogic) GetPersona(req *types.PersonaPath) (*types.PersonaData, error) {
	tenantID, uid, err := actorFrom(l.ctx)
	if err != nil {
		return nil, err
	}
	item, err := l.svcCtx.Persona.Get(l.ctx, tenantID, uid, req.ID)
	if err != nil {
		return nil, err
	}
	out := toPersonaData(*item)
	return &out, nil
}

type UpdatePersonaLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewUpdatePersonaLogic(ctx context.Context, svcCtx *svc.ServiceContext) *UpdatePersonaLogic {
	return &UpdatePersonaLogic{ctx: ctx, svcCtx: svcCtx}
}

type DeletePersonaLogic struct {
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewDeletePersonaLogic(ctx context.Context, svcCtx *svc.ServiceContext) *DeletePersonaLogic {
	return &DeletePersonaLogic{ctx: ctx, svcCtx: svcCtx}
}

func (l *DeletePersonaLogic) DeletePersona(req *types.PersonaPath) error {
	tenantID, uid, err := actorFrom(l.ctx)
	if err != nil {
		return err
	}
	return l.svcCtx.Persona.Delete(l.ctx, tenantID, uid, req.ID)
}

func (l *UpdatePersonaLogic) UpdatePersona(req *types.PersonaPath, body *types.UpdatePersonaReq) (*types.PersonaData, error) {
	tenantID, uid, err := actorFrom(l.ctx)
	if err != nil {
		return nil, err
	}
	item, err := l.svcCtx.Persona.Update(l.ctx, domusecase.UpdateRequest{
		TenantID:  tenantID,
		OwnerUID:  uid,
		PersonaID: req.ID,
		Patch:     toPersonaPatch(body),
	})
	if err != nil {
		return nil, err
	}
	out := toPersonaData(*item)
	return &out, nil
}