initial commit

plugins.go

@@ -0,0 +1,65 @@
+package laniakea
+
+type CommandExecutor func(ctx *MsgContext)
+
+type PluginBuilder struct {
+	name           string
+	commands       map[string]*CommandExecutor
+	payloads       map[string]*CommandExecutor
+	updateListener *CommandExecutor
+}
+
+type Plugin struct {
+	Name           string
+	Commands       map[string]*CommandExecutor
+	Payloads       map[string]*CommandExecutor
+	UpdateListener *CommandExecutor
+}
+
+func NewPlugin(name string) *PluginBuilder {
+	return &PluginBuilder{
+		name:     name,
+		commands: make(map[string]*CommandExecutor),
+		payloads: make(map[string]*CommandExecutor),
+	}
+}
+
+func (p *PluginBuilder) Command(f CommandExecutor, cmd ...string) *PluginBuilder {
+	for _, c := range cmd {
+		p.commands[c] = &f
+	}
+	return p
+}
+
+func (p *PluginBuilder) Payload(f CommandExecutor, payloads ...string) *PluginBuilder {
+	for _, payload := range payloads {
+		p.payloads[payload] = &f
+	}
+	return p
+}
+
+func (p *PluginBuilder) UpdateListener(listener CommandExecutor) *PluginBuilder {
+	p.updateListener = &listener
+	return p
+}
+
+func (p *PluginBuilder) Build() *Plugin {
+	if len(p.commands) == 0 {
+		return nil
+	}
+	plugin := &Plugin{
+		Name:           p.name,
+		Commands:       p.commands,
+		Payloads:       p.payloads,
+		UpdateListener: p.updateListener,
+	}
+	return plugin
+}
+
+func (p *Plugin) Execute(cmd string, ctx *MsgContext) {
+	(*p.Commands[cmd])(ctx)
+}
+
+func (p *Plugin) ExecutePayload(payload string, ctx *MsgContext) {
+	(*p.Payloads[payload])(ctx)
+}