/*

* About File:
	this is already documented but it defines the languages supported, extensions, runners, coloring, etc

*/

import { LanguageId } from './deployment';

interface Language {
	tag: string; // Tag which corresponds to language_id in metacall.json
	displayName: string; // Name for displaying the language
	hexColor: string; // Color for displaying the language related things
	fileExtRegex: RegExp; // Regex for selecting the metacall.json scripts field
	runnerName?: string; // Id of the runner
	runnerFilesRegexes: RegExp[]; // Regex for generating the runners list
}

export const Languages: Record<LanguageId, Language> = {
	cs: {
		tag: 'cs',
		displayName: 'C#',
		hexColor: '#953dac',
		fileExtRegex: /^cs$/,
		runnerName: 'csharp',
		runnerFilesRegexes: [/^project\.json$/, /\.csproj$/]
	},
	py: {
		tag: 'py',
		displayName: 'Python',
		hexColor: '#ffd43b',
		fileExtRegex: /^py$/,
		runnerName: 'python',
		runnerFilesRegexes: [/^requirements\.txt$/]
	},
	rb: {
		tag: 'rb',
		displayName: 'Ruby',
		hexColor: '#e53935',
		fileExtRegex: /^rb$/,
		runnerName: 'ruby',
		runnerFilesRegexes: [/^Gemfile$/]
	},
	node: {
		tag: 'node',
		displayName: 'NodeJS',
		hexColor: '#3c873a',
		fileExtRegex: /^js$/,
		runnerName: 'nodejs',
		runnerFilesRegexes: [/^package\.json$/]
	},
	ts: {
		tag: 'ts',
		displayName: 'TypeScript',
		hexColor: '#007acc',
		fileExtRegex: /^(ts|tsx)$/,
		runnerName: 'nodejs',
		runnerFilesRegexes: [/^package\.json$/] // TODO: Use tsconfig instead?
	},
	file: {
		tag: 'file',
		displayName: 'Static Files',
		hexColor: '#de5500',
		fileExtRegex: /^\w+$/,
		runnerName: undefined, // File has no runner (yet?)
		runnerFilesRegexes: [] // File has no runner files (yet?)
	},
	cob: {
		tag: 'cob',
		displayName: 'Cobol',
		hexColor: '#01325a',
		fileExtRegex: /^(cob|cbl|cbl)$/,
		runnerName: undefined, // Cobol has no runner (yet?)
		runnerFilesRegexes: [] // Cobol has no runner files (yet?)
	},
	rpc: {
		tag: 'rpc',
		displayName: 'RPC',
		hexColor: '#0f564d',
		fileExtRegex: /^rpc$/,
		runnerName: undefined, // RPC has no runner (yet?)
		runnerFilesRegexes: [] // RPC has no runner files (yet?)
	}
};

export const DisplayNameToLanguageId: Record<string, LanguageId> = Object.keys(
	Languages
).reduce(
	(obj, lang) =>
		Object.assign(obj, {
			[Languages[lang as LanguageId].displayName]: lang
		}),
	{}
);

export const RunnerToDisplayName = (runner: string): string => {
	const displayNameMap: Record<string, string> = {
		nodejs: 'NPM',
		python: 'Pip',
		ruby: 'Gem',
		csharp: 'NuGet'
	};

	return displayNameMap[runner] || 'Build';
};