/
validate.go
82 lines (72 loc) · 2.46 KB
/
validate.go
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package handler
import (
"github.com/openflagr/flagr/pkg/entity"
"github.com/openflagr/flagr/pkg/util"
"github.com/openflagr/flagr/swagger_gen/restapi/operations/distribution"
"github.com/openflagr/flagr/swagger_gen/restapi/operations/variant"
)
var validatePutDistributions = func(params distribution.PutDistributionsParams) *Error {
sum := int64(0)
for _, d := range params.Body.Distributions {
if d.Percent == nil {
return NewError(400, "the percent of distribution %v is empty", d.ID)
}
sum += *d.Percent
}
if sum != 100 {
return NewError(400, "the sum of distributions' percent %v is not 100", sum)
}
f := &entity.Flag{}
if err := getDB().First(f, params.FlagID).Error; err != nil {
return NewError(400, "error finding flagID %v. reason %s", params.FlagID, err)
}
f.Preload(getDB())
vMap := make(map[uint]string)
vIDs := []uint{}
for _, v := range f.Variants {
vMap[v.ID] = v.Key
vIDs = append(vIDs, v.ID)
}
for _, v := range params.Body.Distributions {
vID := util.SafeUint(v.VariantID)
k, ok := vMap[vID]
if !ok {
return NewError(400, "error finding variantID %v under this flag. expecting %v", vID, vIDs)
}
if k != util.SafeString(v.VariantKey) {
return NewError(400, "error matching variantID %v with variantKey %s. expecting %s", vID, util.SafeString(v.VariantKey), k)
}
}
return nil
}
var validateDeleteVariant = func(params variant.DeleteVariantParams) *Error {
f := &entity.Flag{}
if err := getDB().First(f, params.FlagID).Error; err != nil {
return NewError(404, "error finding flagID %v. reason %s", params.FlagID, err)
}
f.Preload(getDB())
for _, s := range f.Segments {
for _, d := range s.Distributions {
if d.VariantID == util.SafeUint(params.VariantID) {
if d.Percent != uint(0) {
return NewError(400, "error deleting variant %v. distribution %v still has non-zero distribution %v", params.VariantID, d.ID, d.Percent)
}
if err := getDB().Delete(&entity.Distribution{}, d.ID).Error; err != nil {
return NewError(500, "error deleting distribution %v. reason: %s", d.ID, err)
}
}
}
}
return nil
}
var validatePutVariantForDistributions = func(v *entity.Variant) *Error {
err := getDB().
Model(entity.Distribution{}).
Where(entity.Distribution{VariantID: v.ID}).
Updates(entity.Distribution{VariantKey: v.Key}).
Error
if err != nil {
return NewError(500, "error updating distribution to sync with variantID %v with variantKey %v. reason: %s", v.ID, v.Key, err)
}
return nil
}