package repository

import (
	"context"
	"errors"
	"time"

	"github.com/jackc/pgx/v5"

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

type KolPackage struct {
	ID           int64
	TenantID     int64
	KolProfileID int64
	Name         string
	Description  *string
	CoverURL     *string
	Industry     *string
	Tags         []byte
	PriceNote    *string
	Status       string
	CreatedAt    time.Time
	UpdatedAt    time.Time
}

type CreateKolPackageInput struct {
	TenantID     int64
	KolProfileID int64
	Name         string
	Description  *string
	CoverURL     *string
	Industry     *string
	Tags         []byte
	PriceNote    *string
}

type UpdateKolPackageInput struct {
	ID          int64
	Name        string
	Description *string
	CoverURL    *string
	Industry    *string
	Tags        []byte
	PriceNote   *string
}

type KolPackageRepository interface {
	Create(ctx context.Context, input CreateKolPackageInput) (*KolPackage, error)
	GetByID(ctx context.Context, tenantID, id int64) (*KolPackage, error)
	ListByProfile(ctx context.Context, tenantID, profileID int64) ([]KolPackage, error)
	ListPackageIDsByProfile(ctx context.Context, tenantID, profileID int64) ([]int64, error)
	Update(ctx context.Context, tenantID int64, input UpdateKolPackageInput) error
	UpdateStatus(ctx context.Context, tenantID, id int64, status string) error
	SoftDelete(ctx context.Context, tenantID, id int64) error
}

type kolPackageRepository struct {
	q generated.Querier
}

func NewKolPackageRepository(db generated.DBTX) KolPackageRepository {
	return &kolPackageRepository{q: newQuerier(db)}
}

func (r *kolPackageRepository) Create(ctx context.Context, input CreateKolPackageInput) (*KolPackage, error) {
	row, err := r.q.CreateKolPackage(ctx, generated.CreateKolPackageParams{
		TenantID:     input.TenantID,
		KolProfileID: input.KolProfileID,
		Name:         input.Name,
		Description:  pgText(input.Description),
		CoverUrl:     pgText(input.CoverURL),
		Industry:     pgText(input.Industry),
		Tags:         input.Tags,
		PriceNote:    pgText(input.PriceNote),
	})
	if err != nil {
		return nil, err
	}
	return &KolPackage{
		ID:           row.ID,
		TenantID:     row.TenantID,
		KolProfileID: row.KolProfileID,
		Name:         row.Name,
		Description:  nullableText(row.Description),
		CoverURL:     nullableText(row.CoverUrl),
		Industry:     nullableText(row.Industry),
		Tags:         row.Tags,
		PriceNote:    nullableText(row.PriceNote),
		Status:       row.Status,
		CreatedAt:    timeFromTimestamp(row.CreatedAt),
		UpdatedAt:    timeFromTimestamp(row.UpdatedAt),
	}, nil
}

func (r *kolPackageRepository) GetByID(ctx context.Context, tenantID, id int64) (*KolPackage, error) {
	row, err := r.q.GetKolPackageByID(ctx, generated.GetKolPackageByIDParams{
		ID:       id,
		TenantID: tenantID,
	})
	if err != nil {
		if errors.Is(err, pgx.ErrNoRows) {
			return nil, nil
		}
		return nil, err
	}
	return &KolPackage{
		ID:           row.ID,
		TenantID:     row.TenantID,
		KolProfileID: row.KolProfileID,
		Name:         row.Name,
		Description:  nullableText(row.Description),
		CoverURL:     nullableText(row.CoverUrl),
		Industry:     nullableText(row.Industry),
		Tags:         row.Tags,
		PriceNote:    nullableText(row.PriceNote),
		Status:       row.Status,
		CreatedAt:    timeFromTimestamp(row.CreatedAt),
		UpdatedAt:    timeFromTimestamp(row.UpdatedAt),
	}, nil
}

func (r *kolPackageRepository) ListByProfile(ctx context.Context, tenantID, profileID int64) ([]KolPackage, error) {
	rows, err := r.q.ListKolPackagesByProfile(ctx, generated.ListKolPackagesByProfileParams{
		KolProfileID: profileID,
		TenantID:     tenantID,
	})
	if err != nil {
		return nil, err
	}
	result := make([]KolPackage, len(rows))
	for i, row := range rows {
		result[i] = KolPackage{
			ID:           row.ID,
			TenantID:     row.TenantID,
			KolProfileID: row.KolProfileID,
			Name:         row.Name,
			Description:  nullableText(row.Description),
			CoverURL:     nullableText(row.CoverUrl),
			Industry:     nullableText(row.Industry),
			Tags:         row.Tags,
			PriceNote:    nullableText(row.PriceNote),
			Status:       row.Status,
			CreatedAt:    timeFromTimestamp(row.CreatedAt),
			UpdatedAt:    timeFromTimestamp(row.UpdatedAt),
		}
	}
	return result, nil
}

func (r *kolPackageRepository) ListPackageIDsByProfile(ctx context.Context, tenantID, profileID int64) ([]int64, error) {
	ids, err := r.q.ListKolPackageIDsByProfile(ctx, generated.ListKolPackageIDsByProfileParams{
		KolProfileID: profileID,
		TenantID:     tenantID,
	})
	if err != nil {
		return nil, err
	}
	if ids == nil {
		return []int64{}, nil
	}
	return ids, nil
}

func (r *kolPackageRepository) Update(ctx context.Context, tenantID int64, input UpdateKolPackageInput) error {
	return r.q.UpdateKolPackage(ctx, generated.UpdateKolPackageParams{
		Name:        input.Name,
		Description: pgText(input.Description),
		CoverUrl:    pgText(input.CoverURL),
		Industry:    pgText(input.Industry),
		Tags:        input.Tags,
		PriceNote:   pgText(input.PriceNote),
		ID:          input.ID,
		TenantID:    tenantID,
	})
}

func (r *kolPackageRepository) UpdateStatus(ctx context.Context, tenantID, id int64, status string) error {
	return r.q.UpdateKolPackageStatus(ctx, generated.UpdateKolPackageStatusParams{
		Status:   status,
		ID:       id,
		TenantID: tenantID,
	})
}

func (r *kolPackageRepository) SoftDelete(ctx context.Context, tenantID, id int64) error {
	return r.q.SoftDeleteKolPackage(ctx, generated.SoftDeleteKolPackageParams{
		ID:       id,
		TenantID: tenantID,
	})
}