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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| import { Context } from 'cordis' | ||
| import { Awaitable } from 'cosmokit' | ||
| import { Command } from './command' | ||
| import { Argv } from './parser' | ||
| import runtime from './runtime' | ||
| import validate from './validate' | ||
| import help, { HelpConfig } from './help' | ||
| import { Channel, User } from '../database' | ||
| import { Session } from '../protocol' | ||
|
|
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| export * from './command' | ||
| export * from './help' | ||
| export * from './runtime' | ||
| export * from './parser' | ||
| export * from './validate' | ||
|
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| interface CommandMap extends Map<string, Command> { | ||
| resolve(key: string): Command | ||
| } | ||
|
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| declare module 'cordis' { | ||
| interface Context extends Commander.Delegates { | ||
| $commander: Commander | ||
| } | ||
|
|
||
| interface Events { | ||
| 'before-parse'(content: string, session: Session): Argv | ||
| 'command-added'(command: Command): void | ||
| 'command-removed'(command: Command): void | ||
| 'command-error'(argv: Argv, error: any): void | ||
| 'command/before-execute'(argv: Argv): Awaitable<void | string> | ||
| 'command/before-attach-channel'(argv: Argv, fields: Set<Channel.Field>): void | ||
| 'command/before-attach-user'(argv: Argv, fields: Set<User.Field>): void | ||
| 'help/command'(output: string[], command: Command, session: Session): void | ||
| 'help/option'(output: string, option: Argv.OptionDeclaration, command: Command, session: Session): string | ||
| } | ||
| } | ||
|
|
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| export namespace Commander { | ||
| export interface Config { | ||
| help?: false | HelpConfig | ||
| } | ||
|
|
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| export interface Delegates { | ||
| command<D extends string>(def: D, config?: Command.Config): Command<never, never, Argv.ArgumentType<D>> | ||
| command<D extends string>(def: D, desc: string, config?: Command.Config): Command<never, never, Argv.ArgumentType<D>> | ||
| } | ||
| } | ||
|
|
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| export class Commander { | ||
| static readonly key = '$commander' | ||
|
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| _commandList: Command[] = [] | ||
| _commands = new Map<string, Command>() as CommandMap | ||
| _shortcuts: Command.Shortcut[] = [] | ||
|
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| constructor(private ctx: Context, private config: Commander.Config = {}) { | ||
| ctx.plugin(runtime) | ||
| ctx.plugin(validate) | ||
| ctx.plugin(help, config.help) | ||
| } | ||
|
|
||
| protected get caller(): Context { | ||
| return this[Context.current] || this.ctx | ||
| } | ||
|
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| resolve(key: string) { | ||
| if (!key) return | ||
| const segments = key.split('.') | ||
| let i = 1, name = segments[0], cmd: Command | ||
| while ((cmd = this.getCommand(name)) && i < segments.length) { | ||
| name = cmd.name + '.' + segments[i++] | ||
| } | ||
| return cmd | ||
| } | ||
|
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| getCommand(name: string) { | ||
| return this._commands.get(name) | ||
| } | ||
|
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| command(def: string, ...args: [Command.Config?] | [string, Command.Config?]) { | ||
| const desc = typeof args[0] === 'string' ? args.shift() as string : '' | ||
| const config = args[0] as Command.Config | ||
| const path = def.split(' ', 1)[0].toLowerCase() | ||
| const decl = def.slice(path.length) | ||
| const segments = path.split(/(?=[./])/g) | ||
|
|
||
| let parent: Command, root: Command | ||
| const list: Command[] = [] | ||
| segments.forEach((segment, index) => { | ||
| const code = segment.charCodeAt(0) | ||
| const name = code === 46 ? parent.name + segment : code === 47 ? segment.slice(1) : segment | ||
| let command = this.getCommand(name) | ||
| if (command) { | ||
| if (parent) { | ||
| if (command === parent) { | ||
| throw new Error(`cannot set a command (${command.name}) as its own subcommand`) | ||
| } | ||
| if (command.parent) { | ||
| if (command.parent !== parent) { | ||
| throw new Error(`cannot create subcommand ${path}: ${command.parent.name}/${command.name} already exists`) | ||
| } | ||
| } else { | ||
| command.parent = parent | ||
| parent.children.push(command) | ||
| } | ||
| } | ||
| return parent = command | ||
| } | ||
| command = new Command(name, decl, this.caller) | ||
| list.push(command) | ||
| if (!root) root = command | ||
| if (parent) { | ||
| command.parent = parent | ||
| command.config.authority = parent.config.authority | ||
| parent.children.push(command) | ||
| } | ||
| parent = command | ||
| }) | ||
|
|
||
| if (desc) this.caller.i18n.define('', `commands.${parent.name}.description`, desc) | ||
| Object.assign(parent.config, config) | ||
| list.forEach(command => this.caller.emit('command-added', command)) | ||
| if (!config?.patch) { | ||
| if (root) this.caller.state.disposables.unshift(() => root.dispose()) | ||
| return parent | ||
| } | ||
|
|
||
| if (root) root.dispose() | ||
| const command = Object.create(parent) | ||
| command._disposables = this.caller.state.disposables | ||
| return command | ||
| } | ||
| } | ||
|
|
||
| Context.service(Commander.key, { | ||
| constructor: Commander, | ||
| methods: ['command'], | ||
| }) |
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