Proyecto audio control. inicado con panel y control.

node_modules/telegraf/scenes/wizard/context.js

@@ -0,0 +1,28 @@
+class WizardContext {
+  constructor (ctx, steps) {
+    this.ctx = ctx
+    this.steps = steps
+    this.state = ctx.scene.state
+    this.cursor = ctx.scene.session.cursor || 0
+  }
+
+  get step () {
+    return this.cursor >= 0 && this.steps[this.cursor]
+  }
+
+  selectStep (index) {
+    this.cursor = index
+    this.ctx.scene.session.cursor = index
+    return this
+  }
+
+  next () {
+    return this.selectStep(this.cursor + 1)
+  }
+
+  back () {
+    return this.selectStep(this.cursor - 1)
+  }
+}
+
+module.exports = WizardContext

node_modules/telegraf/scenes/wizard/index.js

@@ -0,0 +1,51 @@
+const Composer = require('../../composer')
+const WizardContext = require('./context')
+const { compose, unwrap } = Composer
+
+class WizardScene extends Composer {
+  constructor (id, options, ...steps) {
+    super()
+    this.id = id
+    this.options = typeof options === 'function'
+      ? { steps: [options, ...steps], leaveHandlers: [] }
+      : { steps: steps, leaveHandlers: [], ...options }
+    this.leaveHandler = compose(this.options.leaveHandlers)
+  }
+
+  set ttl (value) {
+    this.options.ttl = value
+  }
+
+  get ttl () {
+    return this.options.ttl
+  }
+
+  leave (...fns) {
+    this.leaveHandler = compose([this.leaveHandler, ...fns])
+    return this
+  }
+
+  leaveMiddleware () {
+    return this.leaveHandler
+  }
+
+  middleware () {
+    return compose([
+      (ctx, next) => {
+        const wizard = new WizardContext(ctx, this.options.steps)
+        ctx.wizard = wizard
+        return next()
+      },
+      super.middleware(),
+      (ctx, next) => {
+        if (!ctx.wizard.step) {
+          ctx.wizard.selectStep(0)
+          return ctx.scene.leave()
+        }
+        return unwrap(ctx.wizard.step)(ctx, next)
+      }
+    ])
+  }
+}
+
+module.exports = WizardScene