mirror of
https://github.com/Luzifer/twitch-bot.git
synced 2024-09-19 18:12:55 +00:00
273 lines
8.1 KiB
Go
273 lines
8.1 KiB
Go
package counter
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import (
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"fmt"
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"net/http"
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"strconv"
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"strings"
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"github.com/gorilla/mux"
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"github.com/pkg/errors"
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"gopkg.in/irc.v4"
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"github.com/Luzifer/twitch-bot/v3/pkg/database"
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"github.com/Luzifer/twitch-bot/v3/plugins"
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)
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var (
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db database.Connector
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formatMessage plugins.MsgFormatter
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ptrStringEmpty = func(s string) *string { return &s }("")
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)
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//nolint:funlen // This function is a few lines too long but only contains definitions
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func Register(args plugins.RegistrationArguments) error {
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db = args.GetDatabaseConnector()
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if err := db.DB().AutoMigrate(&counter{}); err != nil {
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return errors.Wrap(err, "applying schema migration")
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}
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formatMessage = args.FormatMessage
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args.RegisterActor("counter", func() plugins.Actor { return &ActorCounter{} })
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args.RegisterActorDocumentation(plugins.ActionDocumentation{
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Description: "Update counter values",
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Name: "Modify Counter",
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Type: "counter",
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Fields: []plugins.ActionDocumentationField{
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{
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Default: "",
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Description: "Name of the counter to update",
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Key: "counter",
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Name: "Counter",
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Optional: false,
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SupportTemplate: true,
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Type: plugins.ActionDocumentationFieldTypeString,
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},
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{
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Default: "1",
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Description: "Value to add to the counter",
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Key: "counter_step",
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Name: "Counter Step",
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Optional: true,
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SupportTemplate: true,
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Type: plugins.ActionDocumentationFieldTypeString,
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},
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{
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Default: "",
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Description: "Value to set the counter to",
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Key: "counter_set",
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Name: "Counter Set",
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Optional: true,
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SupportTemplate: true,
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Type: plugins.ActionDocumentationFieldTypeString,
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},
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},
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})
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args.RegisterAPIRoute(plugins.HTTPRouteRegistrationArgs{
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Description: "Returns the (formatted) value as a plain string",
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HandlerFunc: routeActorCounterGetValue,
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Method: http.MethodGet,
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Module: "counter",
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Name: "Get Counter Value",
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Path: "/{name}",
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QueryParams: []plugins.HTTPRouteParamDocumentation{
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{
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Description: "Template to apply to the value: Variations of %d sprintf template are supported once",
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Name: "template",
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Required: false,
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Type: "string",
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},
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},
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ResponseType: plugins.HTTPRouteResponseTypeTextPlain,
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RouteParams: []plugins.HTTPRouteParamDocumentation{
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{
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Description: "Name of the counter to query",
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Name: "name",
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},
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},
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})
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args.RegisterAPIRoute(plugins.HTTPRouteRegistrationArgs{
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Description: "Updates the value of the counter",
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HandlerFunc: routeActorCounterSetValue,
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Method: http.MethodPatch,
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Module: "counter",
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Name: "Set Counter Value",
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Path: "/{name}",
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QueryParams: []plugins.HTTPRouteParamDocumentation{
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{
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Description: "If set to `true` the given value is set instead of added",
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Name: "absolute",
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Required: false,
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Type: "boolean",
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},
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{
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Description: "Value to add / set for the given counter",
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Name: "value",
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Required: true,
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Type: "int64",
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},
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},
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RequiresWriteAuth: true,
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RouteParams: []plugins.HTTPRouteParamDocumentation{
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{
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Description: "Name of the counter to update",
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Name: "name",
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},
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},
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})
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args.RegisterTemplateFunction("channelCounter", func(m *irc.Message, r *plugins.Rule, fields *plugins.FieldCollection) interface{} {
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return func(name string) (string, error) {
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channel, err := fields.String("channel")
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if err != nil {
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return "", errors.Wrap(err, "channel not available")
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}
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return strings.Join([]string{channel, name}, ":"), nil
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}
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}, plugins.TemplateFuncDocumentation{
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Description: "Wraps the counter name into a channel specific counter name including the channel name",
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Syntax: "channelCounter <counter name>",
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Example: &plugins.TemplateFuncDocumentationExample{
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Template: `{{ channelCounter "test" }}`,
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ExpectedOutput: "#example:test",
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},
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})
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args.RegisterTemplateFunction("counterValue", plugins.GenericTemplateFunctionGetter(func(name string, _ ...string) (int64, error) {
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return GetCounterValue(db, name)
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}), plugins.TemplateFuncDocumentation{
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Description: "Returns the current value of the counter which identifier was supplied",
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Syntax: "counterValue <counter name>",
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Example: &plugins.TemplateFuncDocumentationExample{
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Template: `{{ counterValue (list .channel "test" | join ":") }}`,
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FakedOutput: "5",
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},
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})
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args.RegisterTemplateFunction("counterValueAdd", plugins.GenericTemplateFunctionGetter(func(name string, val ...int64) (int64, error) {
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var mod int64 = 1
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if len(val) > 0 {
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mod = val[0]
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}
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if err := UpdateCounter(db, name, mod, false); err != nil {
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return 0, errors.Wrap(err, "updating counter")
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}
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return GetCounterValue(db, name)
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}), plugins.TemplateFuncDocumentation{
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Description: "Adds the given value (or 1 if no value) to the counter and returns its new value",
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Syntax: "counterValueAdd <counter name> [increase=1]",
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Example: &plugins.TemplateFuncDocumentationExample{
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Template: `{{ counterValueAdd "myCounter" }} {{ counterValueAdd "myCounter" 5 }}`,
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FakedOutput: "1 6",
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},
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})
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return nil
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}
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type ActorCounter struct{}
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func (a ActorCounter) Execute(_ *irc.Client, m *irc.Message, r *plugins.Rule, eventData *plugins.FieldCollection, attrs *plugins.FieldCollection) (preventCooldown bool, err error) {
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counterName, err := formatMessage(attrs.MustString("counter", nil), m, r, eventData)
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if err != nil {
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return false, errors.Wrap(err, "preparing response")
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}
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if counterSet := attrs.MustString("counter_set", ptrStringEmpty); counterSet != "" {
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parseValue, err := formatMessage(counterSet, m, r, eventData)
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if err != nil {
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return false, errors.Wrap(err, "execute counter value template")
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}
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counterValue, err := strconv.ParseInt(parseValue, 10, 64)
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if err != nil {
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return false, errors.Wrap(err, "parse counter value")
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}
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return false, errors.Wrap(
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UpdateCounter(db, counterName, counterValue, true),
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"set counter",
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)
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}
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var counterStep int64 = 1
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if s := attrs.MustString("counter_step", ptrStringEmpty); s != "" {
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parseStep, err := formatMessage(s, m, r, eventData)
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if err != nil {
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return false, errors.Wrap(err, "execute counter step template")
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}
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counterStep, err = strconv.ParseInt(parseStep, 10, 64)
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if err != nil {
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return false, errors.Wrap(err, "parse counter step")
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}
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}
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return false, errors.Wrap(
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UpdateCounter(db, counterName, counterStep, false),
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"update counter",
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)
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}
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func (a ActorCounter) IsAsync() bool { return false }
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func (a ActorCounter) Name() string { return "counter" }
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func (a ActorCounter) Validate(tplValidator plugins.TemplateValidatorFunc, attrs *plugins.FieldCollection) (err error) {
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if cn, err := attrs.String("counter"); err != nil || cn == "" {
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return errors.New("counter name must be non-empty string")
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}
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for _, field := range []string{"counter", "counter_step", "counter_set"} {
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if err = tplValidator(attrs.MustString(field, ptrStringEmpty)); err != nil {
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return errors.Wrapf(err, "validating %s template", field)
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}
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}
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return nil
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}
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func routeActorCounterGetValue(w http.ResponseWriter, r *http.Request) {
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template := r.FormValue("template")
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if template == "" {
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template = "%d"
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}
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cv, err := GetCounterValue(db, mux.Vars(r)["name"])
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if err != nil {
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http.Error(w, errors.Wrap(err, "getting value").Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text-plain")
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fmt.Fprintf(w, template, cv)
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}
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func routeActorCounterSetValue(w http.ResponseWriter, r *http.Request) {
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var (
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absolute = r.FormValue("absolute") == "true"
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err error
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value int64
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)
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if value, err = strconv.ParseInt(r.FormValue("value"), 10, 64); err != nil {
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http.Error(w, errors.Wrap(err, "parsing value").Error(), http.StatusBadRequest)
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return
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}
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if err = UpdateCounter(db, mux.Vars(r)["name"], value, absolute); err != nil {
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http.Error(w, errors.Wrap(err, "updating value").Error(), http.StatusInternalServerError)
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return
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}
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w.WriteHeader(http.StatusNoContent)
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}
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