/
util.go
167 lines (142 loc) · 3.73 KB
/
util.go
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package server
import (
"context"
"errors"
"strconv"
"time"
"github.com/b2network/b2-indexer/internal/config"
"github.com/b2network/b2-indexer/internal/types"
logger "github.com/b2network/b2-indexer/pkg/log"
"github.com/spf13/cobra"
"gorm.io/driver/postgres"
"gorm.io/gorm"
gormlog "gorm.io/gorm/logger"
)
// type serverContext string
// // ServerContextKey defines the context key used to retrieve a server.Context from
// // a command's Context.
// const (
// ServerContextKey = serverContext("server.context")
// DBContextKey = serverContext("db.context")
// )
// server context
type Context struct {
// Viper *viper.Viper
Config *config.Config
BitcoinConfig *config.BitcoinConfig
HTTPConfig *config.HTTPConfig
// Logger logger.Logger
// Db *gorm.DB
}
// ErrorCode contains the exit code for server exit.
type ErrorCode struct {
Code int
}
func (e ErrorCode) Error() string {
return strconv.Itoa(e.Code)
}
func NewDefaultContext() *Context {
return NewContext(
config.DefaultConfig(),
config.DefaultBitcoinConfig(),
)
}
func NewContext(cfg *config.Config, btcCfg *config.BitcoinConfig) *Context {
return &Context{
Config: cfg,
BitcoinConfig: btcCfg,
}
}
func InterceptConfigsPreRunHandler(cmd *cobra.Command, home string) error {
cfg, err := config.LoadConfig(home)
if err != nil {
return err
}
if home != "" {
cfg.RootDir = home
}
bitcoinCfg, err := config.LoadBitcoinConfig(home)
if err != nil {
return err
}
db, err := NewDB(cfg)
if err != nil {
return err
}
// set db to context
ctx := context.WithValue(cmd.Context(), types.DBContextKey, db)
cmd.SetContext(ctx)
logger.Init(cfg.LogLevel, cfg.LogFormat)
serverCtx := NewContext(cfg, bitcoinCfg)
return SetCmdServerContext(cmd, serverCtx)
}
// GetServerContextFromCmd returns a Context from a command or an empty Context
// if it has not been set.
func GetServerContextFromCmd(cmd *cobra.Command) *Context {
if v := cmd.Context().Value(types.ServerContextKey); v != nil {
serverCtxPtr := v.(*Context)
return serverCtxPtr
}
return NewDefaultContext()
}
// SetCmdServerContext sets a command's Context value to the provided argument.
func SetCmdServerContext(cmd *cobra.Command, serverCtx *Context) error {
v := cmd.Context().Value(types.ServerContextKey)
if v == nil {
return errors.New("server context not set")
}
serverCtxPtr := v.(*Context)
*serverCtxPtr = *serverCtx
return nil
}
// NewDB creates a new database connection.
// default use postgres driver
func NewDB(cfg *config.Config) (*gorm.DB, error) {
DB, err := gorm.Open(postgres.Open(cfg.DatabaseSource), &gorm.Config{
Logger: gormlog.Default.LogMode(gormlog.Info),
})
if err != nil {
return nil, err
}
sqlDB, err := DB.DB()
if err != nil {
return nil, err
}
// set db conn limit
sqlDB.SetMaxIdleConns(cfg.DatabaseMaxIdleConns)
sqlDB.SetMaxOpenConns(cfg.DatabaseMaxOpenConns)
sqlDB.SetConnMaxLifetime(time.Duration(cfg.DatabaseConnMaxLifetime) * time.Second)
return DB, nil
}
func NewHTTPContext(httpCfg *config.HTTPConfig, bitcoinCfg *config.BitcoinConfig) *Context {
return &Context{
HTTPConfig: httpCfg,
BitcoinConfig: bitcoinCfg,
}
}
func HTTPConfigsPreRunHandler(cmd *cobra.Command, home string) error {
cfg, err := config.LoadConfig(home)
if err != nil {
return err
}
if home != "" {
cfg.RootDir = home
}
httpCfg, err := config.LoadHTTPConfig(home)
if err != nil {
return err
}
bitcoinCfg, err := config.LoadBitcoinConfig(home)
if err != nil {
return err
}
db, err := NewDB(cfg)
if err != nil {
return err
}
// set db to context
ctx := context.WithValue(cmd.Context(), types.DBContextKey, db)
cmd.SetContext(ctx)
serverCtx := NewHTTPContext(httpCfg, bitcoinCfg)
return SetCmdServerContext(cmd, serverCtx)
}