/*
   GoToSocial
   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU Affero General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU Affero General Public License for more details.

   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package main

import (
	"fmt"

	"github.com/superseriousbusiness/gotosocial/internal/cliactions"
	"github.com/superseriousbusiness/gotosocial/internal/config"
	"github.com/superseriousbusiness/gotosocial/internal/log"
	"github.com/urfave/cli/v2"
)

type MonkeyPatchedCLIContext struct {
	CLIContext *cli.Context
	AllFlags   []cli.Flag
}

func (f MonkeyPatchedCLIContext) Bool(k string) bool            { return f.CLIContext.Bool(k) }
func (f MonkeyPatchedCLIContext) String(k string) string        { return f.CLIContext.String(k) }
func (f MonkeyPatchedCLIContext) StringSlice(k string) []string { return f.CLIContext.StringSlice(k) }
func (f MonkeyPatchedCLIContext) Int(k string) int              { return f.CLIContext.Int(k) }
func (f MonkeyPatchedCLIContext) IsSet(k string) bool {
	for _, flag := range f.AllFlags {
		flagNames := flag.Names()
		for _, name := range flagNames {
			if name == k {
				return flag.IsSet()
			}
		}

	}
	return false
}

// runAction builds up the config and logger necessary for any
// gotosocial action, and then executes the action.
func runAction(c *cli.Context, allFlags []cli.Flag, a cliactions.GTSAction) error {

	// create a new *config.Config based on the config path provided...
	conf, err := config.FromFile(c.String(config.GetFlagNames().ConfigPath))
	if err != nil {
		return fmt.Errorf("error creating config: %s", err)
	}

	// ... and the flags set on the *cli.Context by urfave
	//
	// The IsSet function on the cli.Context object `c` here appears to have some issues right now, it always returns false in my tests.
	// However we can re-create the behaviour we want by simply referencing the flag objects we created previously
	// https://picopublish.sequentialread.com/files/chatlog_2021_11_18.txt
	monkeyPatchedCLIContext := MonkeyPatchedCLIContext{
		CLIContext: c,
		AllFlags:   allFlags,
	}
	if err := conf.ParseCLIFlags(monkeyPatchedCLIContext, c.App.Version); err != nil {
		return fmt.Errorf("error parsing config: %s", err)
	}

	// initialize the global logger to the log level, with formatting and output splitter already set
	err = log.Initialize(conf.LogLevel)
	if err != nil {
		return fmt.Errorf("error creating logger: %s", err)
	}

	return a(c.Context, conf)
}