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show.go
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show.go
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// Package show provides business API for show.
package show
import (
"context"
"errors"
"fmt"
"strings"
"time"
"github.com/go-olive/olive/business/core/show/db"
"github.com/go-olive/olive/business/sys/database"
"github.com/go-olive/olive/business/sys/validate"
"github.com/jmoiron/sqlx"
"go.uber.org/zap"
)
// Set of error variables for CRUD operations.
var (
ErrNotFound = errors.New("show not found")
ErrInvalidID = errors.New("ID is not in its proper form")
ErrInvalidPostCmds = errors.New("PostCmds is not valid")
ErrInvalidSplitRule = errors.New("SplitRule is not valid")
)
// Core manages the set of APIs for show access.
type Core struct {
store db.Store
}
// NewCore constructs a core for show api access.
func NewCore(log *zap.SugaredLogger, sqlxDB *sqlx.DB) Core {
return Core{
store: db.NewStore(log, sqlxDB),
}
}
// Create inserts a new show into the database.
func (c Core) Create(ctx context.Context, newShow NewShow, now time.Time) (Show, error) {
if err := validate.Check(newShow); err != nil {
return Show{}, fmt.Errorf("validating data: %w", err)
}
if err := validate.CheckPostCmds(newShow.PostCmds); err != nil {
return Show{}, ErrInvalidPostCmds
}
if err := validate.CheckSplitRule(newShow.SplitRule); err != nil {
return Show{}, ErrInvalidSplitRule
}
dbShow := db.Show{
ID: validate.GenerateID(),
Enable: newShow.Enable,
Platform: newShow.Platform,
RoomID: newShow.RoomID,
StreamerName: newShow.StreamerName,
OutTmpl: newShow.OutTmpl,
Parser: newShow.Parser,
SaveDir: newShow.SaveDir,
PostCmds: newShow.PostCmds,
SplitRule: newShow.SplitRule,
DateCreated: now,
DateUpdated: now,
}
tran := func(tx sqlx.ExtContext) error {
if err := c.store.Tran(tx).Create(ctx, dbShow); err != nil {
return fmt.Errorf("create: %w", err)
}
return nil
}
if err := c.store.WithinTran(ctx, tran); err != nil {
return Show{}, fmt.Errorf("tran: %w", err)
}
return toShow(dbShow), nil
}
// Update replaces a show document in the database.
func (c Core) Update(ctx context.Context, showID string, updateShow UpdateShow, now time.Time) error {
if err := validate.CheckID(showID); err != nil {
return ErrInvalidID
}
if err := validate.Check(updateShow); err != nil {
return fmt.Errorf("validating data: %w", err)
}
dbShow, err := c.store.QueryByID(ctx, showID)
if err != nil {
if errors.Is(err, database.ErrDBNotFound) {
return ErrNotFound
}
return fmt.Errorf("updating show showID[%s]: %w", showID, err)
}
if updateShow.Enable != nil {
dbShow.Enable = *updateShow.Enable
}
if updateShow.Platform != nil {
dbShow.Platform = *updateShow.Platform
}
if updateShow.RoomID != nil {
dbShow.RoomID = *updateShow.RoomID
}
if updateShow.StreamerName != nil {
dbShow.StreamerName = *updateShow.StreamerName
}
if updateShow.OutTmpl != nil {
dbShow.OutTmpl = *updateShow.OutTmpl
}
if updateShow.Parser != nil {
dbShow.Parser = *updateShow.Parser
}
if updateShow.SaveDir != nil {
dbShow.SaveDir = *updateShow.SaveDir
}
if updateShow.PostCmds != nil {
dbShow.PostCmds = *updateShow.PostCmds
}
if updateShow.SplitRule != nil {
dbShow.SplitRule = *updateShow.SplitRule
}
dbShow.DateUpdated = now
if err := validate.CheckPostCmds(dbShow.PostCmds); err != nil {
return ErrInvalidPostCmds
}
if err := validate.CheckSplitRule(dbShow.SplitRule); err != nil {
return ErrInvalidSplitRule
}
if err := c.store.Update(ctx, dbShow); err != nil {
return fmt.Errorf("update: %w", err)
}
return nil
}
// Delete removes a show from the database.
func (c Core) Delete(ctx context.Context, showID string) error {
showIDList := strings.Split(showID, ",")
for _, id := range showIDList {
if err := validate.CheckID(id); err != nil {
return fmt.Errorf("delete: %w showID:%s", ErrInvalidID, id)
}
}
if err := c.store.Delete(ctx, showIDList); err != nil {
return fmt.Errorf("delete: %w", err)
}
return nil
}
// Query retrieves a list of existing shows from the database.
func (c Core) Query(ctx context.Context, pageNumber int, rowsPerPage int) ([]Show, error) {
dbShows, err := c.store.Query(ctx, pageNumber, rowsPerPage)
if err != nil {
return nil, fmt.Errorf("query: %w", err)
}
return toShowSlice(dbShows), nil
}
// QueryByID gets the specified show from the database.
func (c Core) QueryByID(ctx context.Context, showID string) (Show, error) {
if err := validate.CheckID(showID); err != nil {
return Show{}, ErrInvalidID
}
dbShow, err := c.store.QueryByID(ctx, showID)
if err != nil {
if errors.Is(err, database.ErrDBNotFound) {
return Show{}, ErrNotFound
}
return Show{}, fmt.Errorf("query: %w", err)
}
return toShow(dbShow), nil
}
// TotalNum gets the total number of shows from the database.
func (c Core) TotalNum(ctx context.Context) (int64, error) {
num, err := c.store.TotalNum(ctx)
if err != nil {
return 0, fmt.Errorf("query: %w", err)
}
return num, nil
}
// QueryAllEnabled retrieves all shows which `enable` equals true from the database and saves them in cache.
func (c *Core) QueryAllEnabled(ctx context.Context) ([]Show, error) {
dbShows, err := c.store.QueryAllEnabled(ctx)
if err != nil {
return nil, fmt.Errorf("query: %w", err)
}
return toShowSlice(dbShows), nil
}