package main

import (
	"fmt"
	"strings"

	i3 "go.i3wm.org/i3/v4"
)

// I3Commander abstrait i3.RunCommand pour testabilite.
type I3Commander interface {
	RunCommand(command string) ([]i3.CommandResult, error)
}

// RealI3Commander utilise go.i3wm.org/i3/v4 directement.
type RealI3Commander struct{}

func (c RealI3Commander) RunCommand(cmd string) ([]i3.CommandResult, error) {
	return i3.RunCommand(cmd)
}

// FuzzyMatch trouve la premiere session matchant query dans : label > branche > cwd.
// Case-insensitive. Retourne nil si aucun match.
func FuzzyMatch(query string, sessions []SessionInfo) *SessionInfo {
	q := strings.ToLower(query)

	// Priorite 1 : label
	for i := range sessions {
		if sessions[i].Label != "" && strings.Contains(strings.ToLower(sessions[i].Label), q) {
			return &sessions[i]
		}
	}

	// Priorite 2 : branche git
	for i := range sessions {
		if strings.Contains(strings.ToLower(sessions[i].GitBranch), q) {
			return &sessions[i]
		}
	}

	// Priorite 3 : cwd
	for i := range sessions {
		if strings.Contains(strings.ToLower(sessions[i].Cwd), q) {
			return &sessions[i]
		}
	}

	return nil
}

// SwitchToWorkspace bascule vers le workspace indique via i3 IPC.
func SwitchToWorkspace(commander I3Commander, wsName string) error {
	cmd := fmt.Sprintf("workspace number %s", wsName)
	results, err := commander.RunCommand(cmd)
	if err != nil {
		return fmt.Errorf("i3 RunCommand: %w", err)
	}

	for _, r := range results {
		if !r.Success {
			return fmt.Errorf("i3 workspace switch failed: %s", r.Error)
		}
	}

	return nil
}