Files
mal/internal/features/playback/handler.go

464 lines
14 KiB
Go

package playback
import (
"context"
"database/sql"
"encoding/json"
"errors"
"io"
"log"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/google/uuid"
"mal/internal/database"
"mal/internal/jikan"
"mal/internal/shared/middleware"
"mal/internal/templates"
)
type Handler struct {
svc *Service
jikanClient *jikan.Client
}
func NewHandler(svc *Service, jikanClient *jikan.Client) *Handler {
return &Handler{svc: svc, jikanClient: jikanClient}
}
func (h *Handler) HandleWatchPage(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
path := strings.TrimPrefix(r.URL.Path, "/watch/")
path = strings.Trim(path, "/")
if path == "" || strings.HasPrefix(path, "proxy/") {
http.NotFound(w, r)
return
}
parts := strings.Split(path, "/")
if len(parts) < 1 {
http.NotFound(w, r)
return
}
malID, err := strconv.Atoi(parts[0])
if err != nil || malID <= 0 {
http.NotFound(w, r)
return
}
// Get episode from path if provided, otherwise from query
episode := ""
if len(parts) >= 2 {
episode = strings.TrimSpace(parts[1])
}
if episode == "" {
episode = strings.TrimSpace(r.URL.Query().Get("ep"))
}
if episode == "" {
episode = "1"
}
mode := strings.TrimSpace(r.URL.Query().Get("mode"))
ctx, cancel := context.WithTimeout(r.Context(), 45*time.Second)
defer cancel()
// Fetch anime details
anime, err := h.jikanClient.GetAnimeByID(ctx, malID)
if err != nil {
log.Printf("failed to fetch anime %d: %v", malID, err)
http.Error(w, "Failed to fetch anime details", http.StatusInternalServerError)
return
}
if anime.Episodes > 0 {
episodeNumber, parseErr := strconv.Atoi(episode)
if parseErr == nil && episodeNumber > anime.Episodes {
http.Redirect(w, r, "/watch/"+strconv.Itoa(malID)+"/"+strconv.Itoa(anime.Episodes), http.StatusFound)
return
}
}
title := anime.DisplayTitle()
userID := watchlistUserIDFromRequest(r)
data, err := h.svc.BuildWatchPageData(ctx, malID, title, episode, mode, userID)
if err != nil {
log.Printf("watch page error for mal_id=%d: %v", malID, err)
http.Error(w, "Failed to load playback", http.StatusBadGateway)
return
}
// Convert playback.WatchPageData to templates.WatchPageData
pageData := templates.WatchPageData{
MalID: data.MalID,
Title: data.Title,
TitleEnglish: anime.TitleEnglish,
TitleJapanese: anime.TitleJapanese,
ImageURL: anime.ImageURL(),
Airing: anime.Airing,
CurrentEpisode: data.CurrentEpisode,
TotalEpisodes: anime.Episodes,
StartTimeSeconds: data.StartTimeSeconds,
CurrentStatus: data.CurrentStatus,
InitialMode: data.InitialMode,
AvailableModes: data.AvailableModes,
ModeSources: convertModeSources(data.ModeSources),
Segments: convertSegments(data.Segments),
}
templates.WatchPage(anime, pageData).Render(r.Context(), w)
}
func watchlistUserIDFromRequest(r *http.Request) string {
user, ok := r.Context().Value(middleware.UserContextKey).(*database.User)
if !ok || user == nil {
return ""
}
return user.ID
}
func convertModeSources(sources map[string]ModeSource) map[string]templates.ModeSource {
result := make(map[string]templates.ModeSource, len(sources))
for k, v := range sources {
subtitles := make([]templates.SubtitleItem, len(v.Subtitles))
for i, s := range v.Subtitles {
subtitles[i] = templates.SubtitleItem{
Lang: s.Lang,
URL: s.URL,
Referer: s.Referer,
}
}
result[k] = templates.ModeSource{
URL: v.URL,
Referer: v.Referer,
Subtitles: subtitles,
}
}
return result
}
func convertSegments(segments []SkipSegment) []templates.SkipSegment {
result := make([]templates.SkipSegment, len(segments))
for i, s := range segments {
result[i] = templates.SkipSegment{
Type: s.Type,
Start: s.Start,
End: s.End,
}
}
return result
}
func (h *Handler) HandleProxyStream(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
mode := normalizeMode(r.URL.Query().Get("mode"))
if mode == "" {
mode = "dub"
}
state := r.URL.Query().Get("state")
if strings.TrimSpace(state) == "" {
http.Error(w, "missing playback state", http.StatusBadRequest)
return
}
modeSources := make(map[string]ModeSource)
if err := json.Unmarshal([]byte(state), &modeSources); err != nil {
http.Error(w, "invalid playback state", http.StatusBadRequest)
return
}
source, ok := modeSources[mode]
if !ok || strings.TrimSpace(source.URL) == "" {
http.Error(w, "stream mode unavailable", http.StatusBadRequest)
return
}
h.proxyUpstream(w, r, source.URL, source.Referer)
}
func (h *Handler) HandleProxySegment(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
targetURL := r.URL.Query().Get("u")
if strings.TrimSpace(targetURL) == "" {
http.Error(w, "missing target url", http.StatusBadRequest)
return
}
h.proxyUpstream(w, r, targetURL, r.URL.Query().Get("r"))
}
func (h *Handler) HandleProxySubtitle(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
targetURL := r.URL.Query().Get("u")
if strings.TrimSpace(targetURL) == "" {
http.Error(w, "missing target url", http.StatusBadRequest)
return
}
h.proxyUpstream(w, r, targetURL, r.URL.Query().Get("r"))
}
func (h *Handler) HandleSaveProgress(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
user := middleware.GetUser(r.Context())
if user == nil {
http.Error(w, "Unauthorized", http.StatusUnauthorized)
return
}
type saveProgressRequest struct {
MalID int `json:"mal_id"`
Episode int `json:"episode"`
TimeSecond float64 `json:"time_seconds"`
}
var payload saveProgressRequest
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
http.Error(w, "invalid payload", http.StatusBadRequest)
return
}
if payload.MalID <= 0 || payload.Episode <= 0 {
http.Error(w, "invalid payload", http.StatusBadRequest)
return
}
timeSeconds := payload.TimeSecond
if timeSeconds < 0 || timeSeconds != timeSeconds {
timeSeconds = 0
}
if h.svc.db == nil {
http.Error(w, "database unavailable", http.StatusServiceUnavailable)
return
}
animeID := int64(payload.MalID)
if _, err := h.svc.db.GetAnime(r.Context(), animeID); err != nil {
anime, fetchErr := h.jikanClient.GetAnimeByID(r.Context(), payload.MalID)
if fetchErr != nil {
log.Printf("save progress failed to fetch anime user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, fetchErr)
http.Error(w, "failed to save progress", http.StatusInternalServerError)
return
}
if _, upsertErr := h.svc.db.UpsertAnime(r.Context(), database.UpsertAnimeParams{
ID: animeID,
TitleOriginal: anime.Title,
TitleEnglish: sql.NullString{String: anime.TitleEnglish, Valid: anime.TitleEnglish != ""},
TitleJapanese: sql.NullString{String: anime.TitleJapanese, Valid: anime.TitleJapanese != ""},
ImageUrl: anime.ImageURL(),
Airing: sql.NullBool{Bool: anime.Airing, Valid: true},
}); upsertErr != nil {
log.Printf("save progress failed to upsert anime user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, upsertErr)
http.Error(w, "failed to save progress", http.StatusInternalServerError)
return
}
}
watchListEntry, watchListErr := h.svc.db.GetWatchListEntry(r.Context(), database.GetWatchListEntryParams{
UserID: user.ID,
AnimeID: animeID,
})
if watchListErr == nil && watchListEntry.Status == "completed" {
if err := h.svc.db.DeleteContinueWatchingEntry(r.Context(), database.DeleteContinueWatchingEntryParams{
UserID: user.ID,
AnimeID: animeID,
}); err != nil {
log.Printf("save progress failed to clear continue entry user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
}
w.WriteHeader(http.StatusNoContent)
return
}
if err := h.svc.db.SaveWatchProgress(r.Context(), database.SaveWatchProgressParams{
CurrentEpisode: sql.NullInt64{Int64: int64(payload.Episode), Valid: true},
CurrentTimeSeconds: timeSeconds,
UserID: user.ID,
AnimeID: animeID,
}); err != nil {
if err.Error() != "sql: no rows in result set" {
log.Printf("save watchlist progress skipped user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
}
}
if _, err := h.svc.db.UpsertContinueWatchingEntry(r.Context(), database.UpsertContinueWatchingEntryParams{
ID: uuid.New().String(),
UserID: user.ID,
AnimeID: animeID,
CurrentEpisode: sql.NullInt64{Int64: int64(payload.Episode), Valid: true},
CurrentTimeSeconds: timeSeconds,
}); err != nil {
log.Printf("save continue watching failed user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
http.Error(w, "failed to save progress", http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
func (h *Handler) HandleCompleteAnime(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
user := middleware.GetUser(r.Context())
if user == nil {
http.Error(w, "Unauthorized", http.StatusUnauthorized)
return
}
type completeAnimeRequest struct {
MalID int `json:"mal_id"`
Episode int `json:"episode"`
}
var payload completeAnimeRequest
if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
http.Error(w, "invalid payload", http.StatusBadRequest)
return
}
if payload.MalID <= 0 || payload.Episode <= 0 {
http.Error(w, "invalid payload", http.StatusBadRequest)
return
}
animeID := int64(payload.MalID)
if _, err := h.svc.db.GetAnime(r.Context(), animeID); err != nil {
anime, fetchErr := h.jikanClient.GetAnimeByID(r.Context(), payload.MalID)
if fetchErr != nil {
log.Printf("complete anime failed to fetch anime user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, fetchErr)
http.Error(w, "failed to mark anime completed", http.StatusInternalServerError)
return
}
if _, upsertErr := h.svc.db.UpsertAnime(r.Context(), database.UpsertAnimeParams{
ID: animeID,
TitleOriginal: anime.Title,
TitleEnglish: sql.NullString{String: anime.TitleEnglish, Valid: anime.TitleEnglish != ""},
TitleJapanese: sql.NullString{String: anime.TitleJapanese, Valid: anime.TitleJapanese != ""},
ImageUrl: anime.ImageURL(),
Airing: sql.NullBool{Bool: anime.Airing, Valid: true},
}); upsertErr != nil {
log.Printf("complete anime failed to upsert anime user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, upsertErr)
http.Error(w, "failed to mark anime completed", http.StatusInternalServerError)
return
}
}
if _, err := h.svc.db.UpsertWatchListEntry(r.Context(), database.UpsertWatchListEntryParams{
ID: uuid.New().String(),
UserID: user.ID,
AnimeID: animeID,
Status: "completed",
CurrentEpisode: sql.NullInt64{Int64: int64(payload.Episode), Valid: true},
CurrentTimeSeconds: 0,
}); err != nil {
log.Printf("complete anime failed to upsert watchlist user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
http.Error(w, "failed to mark anime completed", http.StatusInternalServerError)
return
}
if err := h.svc.db.DeleteContinueWatchingEntry(r.Context(), database.DeleteContinueWatchingEntryParams{
UserID: user.ID,
AnimeID: animeID,
}); err != nil {
log.Printf("complete anime failed to delete continue entry user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
http.Error(w, "failed to mark anime completed", http.StatusInternalServerError)
return
}
if _, err := h.svc.db.GetContinueWatchingEntry(r.Context(), database.GetContinueWatchingEntryParams{
UserID: user.ID,
AnimeID: animeID,
}); err == nil {
log.Printf("complete anime failed to clear continue entry user_id=%s mal_id=%d", user.ID, payload.MalID)
http.Error(w, "failed to mark anime completed", http.StatusInternalServerError)
return
} else if !errors.Is(err, sql.ErrNoRows) {
log.Printf("complete anime failed to verify continue clear user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
http.Error(w, "failed to mark anime completed", http.StatusInternalServerError)
return
}
if err := h.svc.db.SaveWatchProgress(r.Context(), database.SaveWatchProgressParams{
CurrentEpisode: sql.NullInt64{Int64: int64(payload.Episode), Valid: true},
CurrentTimeSeconds: 0,
UserID: user.ID,
AnimeID: animeID,
}); err != nil {
if err.Error() != "sql: no rows in result set" {
log.Printf("complete anime failed to reset watchlist progress user_id=%s mal_id=%d err=%v", user.ID, payload.MalID, err)
}
}
w.WriteHeader(http.StatusNoContent)
}
func (h *Handler) proxyUpstream(w http.ResponseWriter, r *http.Request, targetURL string, referer string) {
parsed, err := url.Parse(targetURL)
if err != nil || (parsed.Scheme != "http" && parsed.Scheme != "https") {
http.Error(w, "invalid upstream url", http.StatusBadRequest)
return
}
ctx, cancel := context.WithTimeout(r.Context(), 30*time.Second)
defer cancel()
statusCode, headers, rewrittenBody, streamBody, err := h.svc.ProxyStream(ctx, targetURL, referer, r.Header.Get("Range"))
if err != nil {
log.Printf("proxy error for url=%s: %v", targetURL, err)
http.Error(w, "upstream request failed", http.StatusBadGateway)
return
}
for key, values := range headers {
for _, value := range values {
w.Header().Add(key, value)
}
}
w.WriteHeader(statusCode)
if len(rewrittenBody) > 0 {
_, _ = w.Write(rewrittenBody)
return
}
if streamBody == nil {
return
}
defer streamBody.Close()
_, _ = io.Copy(w, streamBody)
}