check_media.go RawHistoryFolder

1// Package usecase contains application business logic.
2package usecase
3
4import (
5	"context"
6	"fmt"
7
8	"github.com/bnema/dumber/internal/application/port"
9	"github.com/bnema/dumber/internal/logging"
10)
11
12// CheckMediaUseCase validates media playback requirements at startup.
13type CheckMediaUseCase struct {
14	diagnostics port.MediaDiagnostics
15}
16
17// NewCheckMediaUseCase creates a new CheckMediaUseCase.
18func NewCheckMediaUseCase(diagnostics port.MediaDiagnostics) *CheckMediaUseCase {
19	return &CheckMediaUseCase{
20		diagnostics: diagnostics,
21	}
22}
23
24// CheckMediaInput contains options for the media check.
25type CheckMediaInput struct {
26	ShowDiagnostics bool // Log diagnostics warnings
27}
28
29// CheckMediaOutput contains the result of the media check.
30type CheckMediaOutput struct {
31	GStreamerAvailable bool
32	HWAccelAvailable   bool
33	AV1HWAvailable     bool
34	Warnings           []string
35}
36
37// Execute checks media playback requirements.
38// Returns error if GStreamer is not installed (fatal).
39// Returns warnings for missing hardware acceleration (non-fatal).
40func (uc *CheckMediaUseCase) Execute(ctx context.Context, input CheckMediaInput) (*CheckMediaOutput, error) {
41	log := logging.FromContext(ctx)
42
43	result := uc.diagnostics.RunDiagnostics(ctx)
44
45	// GStreamer is required - fail early if not installed
46	if !result.GStreamerAvailable {
47		return nil, fmt.Errorf(
48			"GStreamer not installed - video playback requires GStreamer. Install: %s",
49			"gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly gst-libav",
50		)
51	}
52
53	// Log warnings if requested
54	if input.ShowDiagnostics {
55		for _, warning := range result.Warnings {
56			log.Warn().Str("component", "media").Msg(warning)
57		}
58		if result.AV1HWAvailable {
59			log.Info().Str("component", "media").Msg("AV1 hardware decoding available (preferred codec)")
60		}
61	}
62
63	return &CheckMediaOutput{
64		GStreamerAvailable: result.GStreamerAvailable,
65		HWAccelAvailable:   result.HWAccelAvailable,
66		AV1HWAvailable:     result.AV1HWAvailable,
67		Warnings:           result.Warnings,
68	}, nil
69}