initial commit

context/context.go

@@ -0,0 +1,96 @@
+package context
+
+import (
+	"context"
+	"github.com/abelith/gomax/state"
+	maxbot "github.com/max-messenger/max-bot-api-client-go/v2"
+	"github.com/max-messenger/max-bot-api-client-go/v2/model"
+	"time"
+)
+
+type Context struct {
+	ctx   context.Context
+	upd   model.Update
+	state *state.Context
+	api   *maxbot.Api
+}
+
+type Option interface {
+	applyOption(opts *msgOptions)
+}
+
+type msgOptions struct {
+	kb *model.Keyboard
+}
+
+type responseOptionWrapper struct {
+	fn func(options *msgOptions)
+}
+
+func New(ctx context.Context, upd model.Update, state *state.Context, api *maxbot.Api) *Context {
+	return &Context{
+		ctx:   ctx,
+		upd:   upd,
+		state: state,
+		api:   api,
+	}
+}
+
+func (c *Context) Context() context.Context {
+	return c.ctx
+}
+
+func (c *Context) SetContext(ctx context.Context) {
+	c.ctx = ctx
+}
+
+func (c *Context) State() *state.Context {
+	return c.state
+}
+
+func (c *Context) Update() model.Update {
+	return c.upd
+}
+
+func (c *Context) Respond(text string, opts ...Option) error {
+	msg := maxbot.NewMessage().
+		SetChat(c.upd.ChatID).
+		SetUser(c.upd.UserID).
+		SetText(text)
+
+	var cfg msgOptions
+	for _, opt := range opts {
+		opt.applyOption(&cfg)
+	}
+
+	if cfg.kb != nil {
+		msg.AddKeyboard(cfg.kb)
+	}
+
+	_, err := c.api.Messages.Send(c.ctx, msg)
+	return err
+}
+
+func (c *Context) Deadline() (deadline time.Time, ok bool) {
+	return c.ctx.Deadline()
+}
+
+func (c *Context) Done() <-chan struct{} {
+	return c.ctx.Done()
+}
+
+func (c *Context) Err() error {
+	return c.ctx.Err()
+}
+
+func (c *Context) Value(key any) any {
+	return c.ctx.Value(key)
+}
+
+func (w responseOptionWrapper) applyOption(cfg *msgOptions) {
+	w.fn(cfg)
+}
+
+func newOption(fn func(options *msgOptions)) Option {
+	return responseOptionWrapper{fn: fn}
+}