# Loader configuration file
class LoaderConfig
	super IniConfig

	redef var default_config_file = "loader.ini"

	# Default database host string for MongoDb
	var default_db_host = "mongodb://mongo:27017/"

	# Default database hostname
	var default_db_name = "github_loader"

	# MongoDb host name
	var opt_db_host = new OptionString("MongoDb host", "--db-host")

	# MongoDb database name
	var opt_db_name = new OptionString("MongoDb database name", "--db-name")

	# --verbose
	var opt_verbose = new OptionCount("Verbosity level", "-v", "--verbose")

	# --no-colors
	var opt_no_colors = new OptionBool("Do not use colors in output", "--no-colors")

	# --tokens
	var opt_tokens = new OptionArray("Token list", "--tokens")

	# --show-wallet
	var opt_show_wallet = new OptionBool("Show wallet status", "--show-wallet")

	# --show-jobs
	var opt_show_jobs = new OptionBool("Show jobs status", "--show-jobs")

	# --no-branches
	var opt_no_branches = new OptionBool("Do not load branches", "--no-branches")

	# --no-commits
	var opt_no_commits = new OptionBool("Do not load commits from default branch", "--no-commits")

	# --no-issues
	var opt_no_issues = new OptionBool("Do not load issues", "--no-issues")

	# --no-comments
	var opt_no_comments = new OptionBool("Do not load issue comments", "--no-comments")

	# --no-events
	var opt_no_events = new OptionBool("Do not load issues events", "--no-events")

	# --from
	var opt_start = new OptionInt("Start loading issues from a number", 0, "--from")

	# --clear
	var opt_clear = new OptionBool("Clear job for given repo name", "--clear")

	init do
		super
		tool_description = "Usage: loader <repo_name>\nLoad a GitHub repo into a MongoDb."
		add_option(opt_db_host, opt_db_name)
		add_option(opt_tokens, opt_show_wallet)
		add_option(opt_verbose, opt_no_colors)
		add_option(opt_show_jobs, opt_no_commits, opt_no_issues, opt_no_comments, opt_no_events)
		add_option(opt_start, opt_clear)
	end

	# MongoDB server used for data persistence
	fun db_host: String do
		return opt_db_host.value or else ini["db.host"] or else default_db_host
	end

	# MongoDB DB used for data persistence
	fun db_name: String do
		return opt_db_name.value or else ini["db.name"] or else default_db_name
	end

	# Mongo db client
	var client = new MongoClient(db_host) is lazy

	# Mongo db instance
	var db: MongoDb = client.database(db_name) is lazy

	# Github tokens used to access data.
	var tokens: Array[String] is lazy do
		var opt_tokens = self.opt_tokens.value
		if opt_tokens.not_empty then return opt_tokens

		var res = new Array[String]
		var ini_tokens = ini.section("tokens")
		if ini_tokens == null then return res

		for token in ini_tokens.values do
			if token == null then continue
			res.add token
		end
		return res
	end

	# Github tokens wallet
	var wallet: GithubWallet is lazy do
		return new GithubWallet(tokens)
	end

	# Use colors in console display
	fun no_colors: Bool do
		if opt_no_colors.value then return true
		return ini["loader.no_colors"] == "true"
	end

	# Verbosity level (the higher the more verbose)
	fun verbose_level: Int do
		var opt = opt_start.value
		if opt > 0 then
			return info_level
		end
		var v = ini["loader.verbose"]
		if v != null and v.to_i > 0 then
			return info_level
		end
		return warn_level
	end

	# Logger used to print things
	var logger: PopLogger is lazy do
		var logger = new PopLogger
		logger.level = verbose_level
		return logger
	end

	# Should we avoid loading branches?
	fun no_branches: Bool do
		if opt_no_branches.value then return true
		return ini["loader.no_branches"] == "true"
	end

	# Should we avoid loading commits?
	fun no_commits: Bool do
		if opt_no_commits.value then return true
		return ini["loader.no_commits"] == "true"
	end

	# Should we avoid loading issues?
	fun no_issues: Bool do
		if opt_no_issues.value then return true
		return ini["loader.no_issues"] == "true"
	end

	# Should we avoid loading issue comments?
	fun no_comments: Bool do
		if opt_no_comments.value then return true
		return ini["loader.no_comments"] == "true"
	end

	# Should we avoid loading events?
	fun no_events: Bool do
		if opt_no_events.value then return true
		return ini["loader.no_events"] == "true"
	end

	# At which issue number should we start?
	fun start_from_issue: Int do
		var opt = opt_start.value
		if opt > 0 then return opt
		var v = ini["loader.start"]
		if v != null then return v.to_i
		return 1
	end
end