package tui

import (
	"sync"

	tea "github.com/charmbracelet/bubbletea"

	"github.com/MDietermann/ArduinoArchSetup/internal/module"
)

// ProgressMsg is emitted when a module reports progress during Apply.
type ProgressMsg struct {
	ModuleID string
	Current  int
	Total    int
	Message  string
}

// LogMsg is emitted when a module emits a log line during Apply.
type LogMsg struct {
	ModuleID string
	Line     string
}

// sender abstracts tea.Program.Send so tests can inject a recorder.
type sender interface {
	Send(msg tea.Msg)
}

// TeaReporter implements module.Reporter and forwards every event to a
// sender (typically a *tea.Program). Concurrency-safe.
type TeaReporter struct {
	mu sync.Mutex
	s  sender
}

// NewTeaReporter wraps a sender. Passing nil is allowed — events are dropped.
func NewTeaReporter(s sender) *TeaReporter {
	return &TeaReporter{s: s}
}

func (r *TeaReporter) Progress(id string, current, total int, msg string) {
	r.mu.Lock()
	defer r.mu.Unlock()
	if r.s == nil {
		return
	}
	r.s.Send(ProgressMsg{ModuleID: id, Current: current, Total: total, Message: msg})
}

func (r *TeaReporter) Log(id, line string) {
	r.mu.Lock()
	defer r.mu.Unlock()
	if r.s == nil {
		return
	}
	r.s.Send(LogMsg{ModuleID: id, Line: line})
}

var _ module.Reporter = (*TeaReporter)(nil)