package asa

import (
	"errors"

	"github.com/gin-gonic/gin"
	"github.com/sirupsen/logrus"
)

// GINKey = Standardized keyname to use for storing/accessing *ASA in gin context
const GINKey = "asaKey"

const defaultLogLevel = logrus.InfoLevel

// FromGIN : Returns *ASA from gin context if it exists. Performs checks to attempt to avoid common panic reasons
func FromGIN(c *gin.Context) (*ASA, error) {
	// does it exist?
	a, ok := c.Get(GINKey)
	if !ok {
		return nil, errors.New("ASA.FromGIN(): asa not found in gin context")
	}
	// is it the right type?
	asa, ok := a.(*ASA)
	if !ok {
		return nil, errors.New("ASA.FromGIN(): asa in gin context is not of correct type")
	}

	return asa, nil
}

// selectLog : Returns either the passed in logrus logger, or initializes a new one and returns it
func selectLog(newLog ...logrus.Ext1FieldLogger) logrus.Ext1FieldLogger {
	if len(newLog) > 0 {
		return newLog[0]
	} else {
		newLog := logrus.New()
		newLog.SetLevel(defaultLogLevel)
		return newLog
	}
}