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collection.go
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collection.go
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package goenum
import (
"fmt"
"github.com/pkg/errors"
"projectforge.dev/projectforge/app/lib/types"
"projectforge.dev/projectforge/app/project/export/enum"
"projectforge.dev/projectforge/app/project/export/files/helper"
"projectforge.dev/projectforge/app/project/export/golang"
"projectforge.dev/projectforge/app/util"
)
func structCollection(e *enum.Enum) ([]*golang.Block, error) {
tBlock := golang.NewBlock(e.ProperPlural(), "typealias")
tBlock.W("type %s []%s", e.ProperPlural(), e.Proper())
ksBlock := blockKeys(e)
strBlock := blockString(e)
fnHelpBlock := blockHelp(e)
gBlock := blockGet(e)
gnBlock := blockGetByName(e)
ret := []*golang.Block{tBlock, ksBlock, strBlock, fnHelpBlock, gBlock, gnBlock}
ef := e.ExtraFields()
for _, efk := range ef.Order {
f := ef.GetSimple(efk)
_, unique := e.ExtraFieldValues(efk)
if unique {
efkBlock, err := blockGetByPropUnique(e, efk, f)
if err != nil {
return nil, err
}
ret = append(ret, efkBlock)
} else {
efkBlock, err := blockGetByPropShared(e, efk, f)
if err != nil {
return nil, err
}
ret = append(ret, efkBlock)
}
}
rBlock := blockRandom(e)
ret = append(ret, rBlock)
return ret, nil
}
func blockKeys(e *enum.Enum) *golang.Block {
ksBlock := golang.NewBlock(e.ProperPlural()+"Keys", "method")
ksBlock.W("func (%s %s) Keys() []string {", e.FirstLetter(), e.ProperPlural())
ksBlock.W("\treturn lo.Map(%s, func(x %s, _ int) string {", e.FirstLetter(), e.Proper())
ksBlock.W("\t\treturn x.Key")
ksBlock.W("\t})")
ksBlock.W("}")
return ksBlock
}
func blockString(e *enum.Enum) *golang.Block {
strBlock := golang.NewBlock(e.ProperPlural()+"Strings", "method")
strBlock.W("func (%s %s) Strings() []string {", e.FirstLetter(), e.ProperPlural())
strBlock.W("\treturn lo.Map(%s, func(x %s, _ int) string {", e.FirstLetter(), e.Proper())
strBlock.W("\t\treturn x.String()")
strBlock.W("\t})")
strBlock.W("}")
return strBlock
}
func blockHelp(e *enum.Enum) *golang.Block {
fnHelpBlock := golang.NewBlock(e.Proper()+".Help", "method")
fnHelpBlock.W("func (%s %s) Help() string {", e.FirstLetter(), e.ProperPlural())
fnHelpBlock.W("\treturn \"Available %s options: [\" + strings.Join(%s.Strings(), \", \") + \"]\"", e.TitleLower(), e.FirstLetter())
fnHelpBlock.W("}")
return fnHelpBlock
}
func blockGet(e *enum.Enum) *golang.Block {
gBlock := golang.NewBlock(e.ProperPlural()+"Get", "method")
gBlock.W("func (%s %s) Get(key string, logger util.Logger) %s {", e.FirstLetter(), e.ProperPlural(), e.Proper())
gBlock.W("\tfor _, value := range %s {", e.FirstLetter())
gBlock.W("\t\tif value.Key == key {")
gBlock.W("\t\t\treturn value")
gBlock.W("\t\t}")
gBlock.W("\t}")
if def := e.Values.Default(); def != nil {
gBlock.W("\tif key == \"\" {")
gBlock.W("\t\treturn %s%s", e.Proper(), def.Proper())
gBlock.W("\t}")
}
gBlock.W("\tmsg := fmt.Sprintf(\"unable to find [%s] with key [%%%%s]\", key)", e.Proper())
gBlock.W("\tif logger != nil {")
gBlock.W("\t\tlogger.Warn(msg)")
gBlock.W("\t}")
gBlock.W(retUnknown(e))
gBlock.W("}")
return gBlock
}
func blockGetByName(e *enum.Enum) *golang.Block {
gnBlock := golang.NewBlock(e.ProperPlural()+"GetByName", "method")
gnBlock.W("func (%s %s) GetByName(name string, logger util.Logger) %s {", e.FirstLetter(), e.ProperPlural(), e.Proper())
gnBlock.W("\tfor _, value := range %s {", e.FirstLetter())
gnBlock.W("\t\tif value.Name == name {")
gnBlock.W("\t\t\treturn value")
gnBlock.W("\t\t}")
gnBlock.W("\t}")
if def := e.Values.Default(); def != nil {
gnBlock.W("\tif name == \"\" {")
gnBlock.W("\t\treturn %s%s", e.Proper(), def.Proper())
gnBlock.W("\t}")
}
gnBlock.W("\tmsg := fmt.Sprintf(\"unable to find [%s] with name [%%%%s]\", name)", e.Proper())
gnBlock.W("\tif logger != nil {")
gnBlock.W("\t\tlogger.Warn(msg)")
gnBlock.W("\t}")
gnBlock.W(retUnknown(e))
gnBlock.W("}")
return gnBlock
}
func blockGetByPropUnique(e *enum.Enum, efk string, t string) (*golang.Block, error) {
prop := util.StringToCamel(efk)
dflt := "\"\""
goType := t
switch t {
case types.KeyString:
// noop
case types.KeyInt:
dflt = "0"
case types.KeyFloat:
dflt = "0"
case types.KeyBool:
dflt = util.BoolFalse
case types.KeyTimestamp:
dflt = "nil"
goType = timePointer
default:
return nil, errors.Errorf("unable to create enum helper for type [%s]", t)
}
gxBlock := golang.NewBlock(e.ProperPlural()+helper.TextGetBy+efk, "method")
gxBlock.W("func (%s %s) GetBy%s(input %s, logger util.Logger) %s {", e.FirstLetter(), e.ProperPlural(), prop, goType, e.Proper())
gxBlock.W("\tfor _, value := range %s {", e.FirstLetter())
gxBlock.W("\t\tif value.%s == input {", prop)
gxBlock.W("\t\t\treturn value")
gxBlock.W("\t\t}")
gxBlock.W("\t}")
if def := e.Values.Default(); def != nil {
gxBlock.W("\tif input == %s {", dflt)
gxBlock.W("\t\treturn %s%s", e.Proper(), def.Proper())
gxBlock.W("\t}")
}
possibleLogger(gxBlock, e, prop)
gxBlock.W(retUnknown(e))
gxBlock.W("}")
return gxBlock, nil
}
func possibleLogger(gxBlock *golang.Block, e *enum.Enum, prop string) {
gxBlock.W("\tif logger != nil {")
gxBlock.W("\t\tmsg := fmt.Sprintf(\"unable to find [%s] with %s [%%%%s]\", input)", e.Proper(), prop)
gxBlock.W("\t\tlogger.Warn(msg)")
gxBlock.W("\t}")
}
func blockGetByPropShared(e *enum.Enum, efk string, t string) (*golang.Block, error) {
prop := util.StringToCamel(efk)
goType := t
if t == types.KeyTimestamp {
goType = timePointer
}
gxBlock := golang.NewBlock(e.ProperPlural()+helper.TextGetBy+efk, "method")
gxBlock.W("func (%s %s) GetBy%s(input %s) %s {", e.FirstLetter(), e.ProperPlural(), prop, goType, e.ProperPlural())
gxBlock.W("\tret := %s", e.FirstLetter())
gxBlock.W("\tfor _, value := range %s {", e.FirstLetter())
gxBlock.W("\t\tif value.%s == input {", prop)
gxBlock.W("\t\t\tret = append(ret, value)")
gxBlock.W("\t\t}")
gxBlock.W("\t}")
gxBlock.W("\treturn ret")
gxBlock.W("}")
return gxBlock, nil
}
func blockRandom(e *enum.Enum) *golang.Block {
rBlock := golang.NewBlock(e.ProperPlural()+"Random", "method")
rBlock.W("func (%s %s) Random() %s {", e.FirstLetter(), e.ProperPlural(), e.Proper())
rBlock.W("\treturn %s[util.RandomInt(len(%s))]", e.FirstLetter(), e.FirstLetter())
rBlock.W("}")
return rBlock
}
func retUnknown(e *enum.Enum) string {
if d := e.Values.Default(); d != nil {
return fmt.Sprintf("\treturn %s%s", e.Proper(), d.Proper())
}
return fmt.Sprintf("\treturn %s{Key: \"_error\", Name: \"error: \" + msg}", e.Proper())
}