package repository

import (
	"context"
	"time"

	"github.com/jackc/pgx/v5/pgtype"

	"github.com/geo-platform/tenant-api/internal/tenant/repository/generated"
)

type UserRecord struct {
	ID           int64
	Email        *string
	Phone        string
	PasswordHash string
	Name         *string
	AvatarURL    *string
	Status       string
	CreatedAt    time.Time
	UpdatedAt    time.Time
}

type MembershipRecord struct {
	ID                 int64
	TenantID           int64
	UserID             int64
	PrimaryWorkspaceID int64
	TenantRole         string
	CreatedAt          time.Time
}

type AuthRepository interface {
	GetUserByEmail(ctx context.Context, email string) (*UserRecord, error)
	GetUserByLoginIdentifier(ctx context.Context, identifier string) (*UserRecord, error)
	GetUserByID(ctx context.Context, id int64) (*UserRecord, error)
	GetTenantMembership(ctx context.Context, userID int64) (*MembershipRecord, error)
	GetTenantMembershipByTenantAndUser(ctx context.Context, tenantID, userID int64) (*MembershipRecord, error)
}

type authRepository struct {
	q generated.Querier
}

func NewAuthRepository(db generated.DBTX) AuthRepository {
	return &authRepository{q: newQuerier(db)}
}

func (r *authRepository) GetUserByEmail(ctx context.Context, email string) (*UserRecord, error) {
	row, err := r.q.GetUserByEmail(ctx, pgtype.Text{String: email, Valid: true})
	if err != nil {
		return nil, err
	}

	return &UserRecord{
		ID:           row.ID,
		Email:        nullableText(row.Email),
		Phone:        row.Phone,
		PasswordHash: row.PasswordHash,
		Name:         nullableText(row.Name),
		AvatarURL:    nullableText(row.AvatarUrl),
		Status:       row.Status,
		CreatedAt:    timeFromTimestamp(row.CreatedAt),
		UpdatedAt:    timeFromTimestamp(row.UpdatedAt),
	}, nil
}

func (r *authRepository) GetUserByLoginIdentifier(ctx context.Context, identifier string) (*UserRecord, error) {
	row, err := r.q.GetUserByLoginIdentifier(ctx, pgtype.Text{String: identifier, Valid: true})
	if err != nil {
		return nil, err
	}

	return &UserRecord{
		ID:           row.ID,
		Email:        nullableText(row.Email),
		Phone:        row.Phone,
		PasswordHash: row.PasswordHash,
		Name:         nullableText(row.Name),
		AvatarURL:    nullableText(row.AvatarUrl),
		Status:       row.Status,
		CreatedAt:    timeFromTimestamp(row.CreatedAt),
		UpdatedAt:    timeFromTimestamp(row.UpdatedAt),
	}, nil
}

func (r *authRepository) GetUserByID(ctx context.Context, id int64) (*UserRecord, error) {
	row, err := r.q.GetUserByID(ctx, id)
	if err != nil {
		return nil, err
	}

	return &UserRecord{
		ID:           row.ID,
		Email:        nullableText(row.Email),
		Phone:        row.Phone,
		PasswordHash: row.PasswordHash,
		Name:         nullableText(row.Name),
		AvatarURL:    nullableText(row.AvatarUrl),
		Status:       row.Status,
		CreatedAt:    timeFromTimestamp(row.CreatedAt),
		UpdatedAt:    timeFromTimestamp(row.UpdatedAt),
	}, nil
}

func (r *authRepository) GetTenantMembership(ctx context.Context, userID int64) (*MembershipRecord, error) {
	row, err := r.q.GetTenantMembership(ctx, userID)
	if err != nil {
		return nil, err
	}

	return &MembershipRecord{
		ID:                 row.ID,
		TenantID:           row.TenantID,
		UserID:             row.UserID,
		PrimaryWorkspaceID: row.PrimaryWorkspaceID,
		TenantRole:         row.TenantRole,
		CreatedAt:          timeFromTimestamp(row.CreatedAt),
	}, nil
}

func (r *authRepository) GetTenantMembershipByTenantAndUser(ctx context.Context, tenantID, userID int64) (*MembershipRecord, error) {
	row, err := r.q.GetTenantMembershipByTenantAndUser(ctx, generated.GetTenantMembershipByTenantAndUserParams{
		TenantID: tenantID,
		UserID:   userID,
	})
	if err != nil {
		return nil, err
	}

	return &MembershipRecord{
		ID:                 row.ID,
		TenantID:           row.TenantID,
		UserID:             row.UserID,
		PrimaryWorkspaceID: row.PrimaryWorkspaceID,
		TenantRole:         row.TenantRole,
		CreatedAt:          timeFromTimestamp(row.CreatedAt),
	}, nil
}