// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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/>.

//go:build nowasm

package ffmpeg

import (
	"context"
	"fmt"
	"io"
	"io/fs"
	"os/exec"

	"codeberg.org/gruf/go-ffmpreg/wasm"
	"github.com/tetratelabs/wazero"
	"github.com/tetratelabs/wazero/sys"
)

func init() {
	fmt.Println("!! you are using an unsupported build configuration of gotosocial with WebAssembly disabled !!")
	fmt.Println("!! please do not file bug reports, this build configuration is provided as a nice-to-have !!")
}

// runCmd will run 'name' with the given arguments, returning exit code or error.
func runCmd(ctx context.Context, name string, args wasm.Args) (uint32, error) {
	cmd := exec.CommandContext(ctx, name, args.Args...) //nolint:gosec

	// Set provided std files.
	cmd.Stdin = args.Stdin
	cmd.Stdout = args.Stdout
	cmd.Stderr = args.Stderr

	if args.Config != nil {
		// Gather some information
		// from module config func.
		var cfg falseModuleConfig
		_ = args.Config(&cfg)

		// Extract from conf.
		cmd.Env = cfg.env
	}

	// Run prepared command, catching err type.
	switch err := cmd.Run(); err := err.(type) {

	// Extract code from
	// any exit error type.
	case *exec.ExitError:
		rc := err.ExitCode()
		return uint32(rc), err

	default:
		return 0, err
	}
}

type falseModuleConfig struct{ env []string }

func (cfg *falseModuleConfig) WithArgs(...string) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithEnv(key string, value string) wazero.ModuleConfig {
	cfg.env = append(cfg.env, key+"="+value)
	return cfg // noop
}

func (cfg *falseModuleConfig) WithFS(fs.FS) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithFSConfig(wazero.FSConfig) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithName(string) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithStartFunctions(...string) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithStderr(io.Writer) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithStdin(io.Reader) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithStdout(io.Writer) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithWalltime(sys.Walltime, sys.ClockResolution) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithSysWalltime() wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithNanotime(sys.Nanotime, sys.ClockResolution) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithSysNanotime() wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithNanosleep(sys.Nanosleep) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithOsyield(sys.Osyield) wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithSysNanosleep() wazero.ModuleConfig {
	return cfg // noop
}

func (cfg *falseModuleConfig) WithRandSource(io.Reader) wazero.ModuleConfig {
	return cfg // noop
}