package repository

import (
	"context"
	"errors"
	"time"

	"github.com/google/uuid"
	"github.com/jackc/pgx/v5"
)

// BannerRow is OpsCMS Banner catalog row.
type BannerRow struct {
	ID        uuid.UUID `json:"id"`
	Code      string    `json:"code"`
	Title     string    `json:"title"`
	Placement string    `json:"placement"`
	ImageURL  *string   `json:"image_url,omitempty"`
	LinkPath  *string   `json:"link_path,omitempty"`
	SortOrder int       `json:"sort_order"`
	Active    bool      `json:"active"`
	System    bool      `json:"system"`
	UpdatedAt time.Time `json:"updated_at"`
}

// ListBanners returns banner catalog.
func (r *AdminRepo) ListBanners(ctx context.Context) ([]BannerRow, error) {
	rows, err := r.Pool.Query(ctx, `
		SELECT id, code, title, placement, image_url, link_path, sort_order, active, system, updated_at
		FROM ops_banners
		ORDER BY active DESC, sort_order ASC, code ASC LIMIT 500`)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var out []BannerRow
	for rows.Next() {
		var b BannerRow
		if err := rows.Scan(
			&b.ID, &b.Code, &b.Title, &b.Placement, &b.ImageURL, &b.LinkPath,
			&b.SortOrder, &b.Active, &b.System, &b.UpdatedAt,
		); err != nil {
			return nil, err
		}
		out = append(out, b)
	}
	return out, rows.Err()
}

// GetBanner loads one banner by id.
func (r *AdminRepo) GetBanner(ctx context.Context, id uuid.UUID) (*BannerRow, error) {
	var b BannerRow
	err := r.Pool.QueryRow(ctx, `
		SELECT id, code, title, placement, image_url, link_path, sort_order, active, system, updated_at
		FROM ops_banners WHERE id=$1`, id,
	).Scan(
		&b.ID, &b.Code, &b.Title, &b.Placement, &b.ImageURL, &b.LinkPath,
		&b.SortOrder, &b.Active, &b.System, &b.UpdatedAt,
	)
	if errors.Is(err, pgx.ErrNoRows) {
		return nil, err
	}
	if err != nil {
		return nil, err
	}
	return &b, nil
}

// FeedSlotRow is OpsCMS FeedSlot catalog row.
type FeedSlotRow struct {
	ID        uuid.UUID `json:"id"`
	Code      string    `json:"code"`
	Title     string    `json:"title"`
	SlotKey   string    `json:"slot_key"`
	Placement string    `json:"placement"`
	Active    bool      `json:"active"`
	System    bool      `json:"system"`
	UpdatedAt time.Time `json:"updated_at"`
}

// ListFeedSlots returns feed slot catalog.
func (r *AdminRepo) ListFeedSlots(ctx context.Context) ([]FeedSlotRow, error) {
	rows, err := r.Pool.Query(ctx, `
		SELECT id, code, title, slot_key, placement, active, system, updated_at
		FROM ops_feed_slots
		ORDER BY active DESC, code ASC LIMIT 500`)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var out []FeedSlotRow
	for rows.Next() {
		var s FeedSlotRow
		if err := rows.Scan(
			&s.ID, &s.Code, &s.Title, &s.SlotKey, &s.Placement, &s.Active, &s.System, &s.UpdatedAt,
		); err != nil {
			return nil, err
		}
		out = append(out, s)
	}
	return out, rows.Err()
}

// GetFeedSlot loads one feed slot by id.
func (r *AdminRepo) GetFeedSlot(ctx context.Context, id uuid.UUID) (*FeedSlotRow, error) {
	var s FeedSlotRow
	err := r.Pool.QueryRow(ctx, `
		SELECT id, code, title, slot_key, placement, active, system, updated_at
		FROM ops_feed_slots WHERE id=$1`, id,
	).Scan(&s.ID, &s.Code, &s.Title, &s.SlotKey, &s.Placement, &s.Active, &s.System, &s.UpdatedAt)
	if errors.Is(err, pgx.ErrNoRows) {
		return nil, err
	}
	if err != nil {
		return nil, err
	}
	return &s, nil
}