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miti99bot/docs/command-parameter-conventions.md
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tiennm99 4e805f0a7f feat(sticker): add sticker pack module
Nine commands mirroring the names @Stickers uses: /newpack, /mypack,
/addsticker, /delsticker, /editsticker, /ordersticker, /setpackicon,
/renamepack and /delpack, plus a confirm callback for the destructive
one. Sources are replied stickers, photos or image documents; photos are
downloaded, resampled to 512px and re-uploaded.

One pack per user, keyed by owner id. Creating a pack is the only
operation here that makes a durable, publicly linkable object on a user's
behalf, so it is built around proving ownership rather than assuming it:

- A name is claimed globally and create-only before Telegram is called.
  A pending record alone proves only that a caller *asked* for a name,
  which is exactly what someone naming a victim's public slug also does.
- Adopting an existing set additionally requires that the claim predates
  this invocation. The claim lives in our store and the pack lives at
  Telegram, so a wiped store would otherwise make every pack adoptable.
- Names are released only on positive evidence that no pack stands behind
  them, never on a generic failure, so a transient error cannot hand a
  live name to the next caller.
- Ownership refusals are byte-identical across failure modes, so they
  cannot be used to probe which sets exist.

Error classification is positive-only throughout: "the set is gone" and
"nothing was created" are each proven from a specific Telegram response,
never inferred from an error. Post-action commits run on a context
detached from the request so a shutdown mid-handler cannot lose the
record of something Telegram already did.

Enabled explicitly via MODULES rather than by default.
2026-08-25 15:54:28 +07:00

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Markdown

# Command Parameter Conventions
## Overview
Every Telegram command declares optional `Parameters` metadata. The bot reuses
that string in `/help` and Telegram's native command menu, so it must be short,
consistent, and understandable on a phone.
Treat `Parameters` as display syntax, not as a validation schema. Handlers
remain responsible for parsing and validation.
## Syntax
| Meaning | Format | Example |
|---|---|---|
| Required value | `<name>` | `<ticker>` |
| Required comma-separated values | `<name,...>` | `<option,...>` |
| Required remaining text | `<name...>` | `<title...>` |
| Optional value | `[name]` | `[date]` |
| Optional remaining text | `[name...]` | `[target...]` |
| Alternatives in an optional group | `[literal | literal <name>]` | `[users | user <username>]` |
Use only constructs required by the command. Do not introduce a formal schema
language or extra punctuation without a user-facing need.
## Naming
- Use lowercase `snake_case`.
- Prefer one descriptive noun: `<ticker>`, `<quantity>`, `<champion>`.
- Include units or currencies when they prevent ambiguity: `<vnd_amount>`,
`<usd_to_spend>`.
- Do not add primitive types such as `<quantity:number>` or `<date:string>`.
- Keep literal subcommands bare: `users`, `user`, `cmd`.
- Put spaces around `|` in alternatives.
- Do not repeat format prose inside a placeholder.
- Show punctuation that users must type exactly when omitting it would be
error-prone. `<ratio(owned:new)>` and `<option,...>` are approved compact
shapes.
## Examples
```text
/stock_buy <quantity> <ticker>
/renamepack <title...>
/lol [date]
/trongtruonghop [target...]
/stats [users | user <username> | cmd <command_name>]
/stock_share_dividend <ratio(owned:new)> <ticker>
/random <option,...>
```
## Change Checklist
When adding or changing a command:
1. Make `Parameters` match the handler's accepted argument order.
2. Keep the parameter string single-line and concise enough for Telegram's
command-description limit.
3. Update handler usage and error text to use the same syntax.
4. Update registration, handler, `/help`, and native-menu tests.
5. Update README or feature documentation when behavior is user-visible.
6. Follow the stats migration rules in `AGENTS.md` when a command name changes
or a command is deleted.
## References
- [POSIX.1-2024 utility conventions](https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/V1_chap12.html)
- [GNU command-line interface standards](https://www.gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html)
- [Microsoft command-line syntax key](https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/command-line-syntax-key)
- [Python argparse documentation](https://docs.python.org/3/library/argparse.html)
- [docopt usage-pattern grammar](https://github.com/docopt/docopt/blob/master/README.rst)