#!/bin/bash
set -euo pipefail

SCRIPTS_DIR="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
DANCE_VIDEOS_DB="${HOME}/Documents/.DanceVideos/db.sqlite"
DOSSIER_PLAYLIST="$(dirname "$DANCE_VIDEOS_DB")/playlists"

# Nettoyer et recréer le dossier des playlists
rm -rf "$DOSSIER_PLAYLIST"
mkdir -p "$DOSSIER_PLAYLIST"

# Créer un dossier "all" avec toutes les vidéos
# PLAYLIST_ALL="$DOSSIER_PLAYLIST/all"
# mkdir -p "$PLAYLIST_ALL"
# while IFS= read -r v; do
#     ln -s "$v" "$PLAYLIST_ALL/$(basename "$(dirname "$v")").mp4"
# done < <(sqlite3 "$DANCE_VIDEOS_DB" "SELECT rotated_file FROM videos WHERE rotated_file IS NOT NULL;")

video_filename () {
    local rotated_file=$1
    local alias=${2:-}
    local count_or_music=${3:-}

    name_part="$(basename "$(dirname "$rotated_file")")"
    # Décomposer le name_part pour insérer l'alias après la date
    # On suppose un schéma de départ du type YYYYMMDD_HHMMSS...
    if [[ "$name_part" =~ ^([0-9]{8})_([0-9]{6}.*)$ ]]; then
        date_part="${BASH_REMATCH[1]}"
        rest_part="${BASH_REMATCH[2]}"
    else
        echo unexpected format >&2
        exit 2
    fi

    output_name="${date_part:2}" #ignore the 20 from 20xx years

    if [[ -n "$alias" ]]; then
        # Nettoyer l'alias pour le rendre sûr dans le nom de fichier
        safe_alias="$(echo "$alias" | tr ' /' '_' | tr -dc '[:alnum:]_')"
        output_name="${output_name}_${safe_alias}"
    fi

    if [[ -n "$count_or_music" ]]; then
        output_name="${output_name}_${count_or_music}"
    fi

    echo "${output_name}_${rest_part}.mp4"
}

# Pour chaque playlist, créer un dossier et ajouter les liens symboliques
sqlite3 -separator '|' "$DANCE_VIDEOS_DB" "
    SELECT pv.playlist_id, pv.playlist_name, pv.video_file_name, v.rotated_file, v.alias, COALESCE( count_or_music_labels.count_or_music , '') count_or_music
    FROM playlist_videos pv JOIN videos v ON pv.video_file_name=v.file_name
        LEFT JOIN (
            select * from video_labels
            natural join (
            select id as label_id, CASE WHEN name='comptes' THEN 'C' ELSE 'M' END as count_or_music
            from labels where name in ('comptes','en musique')
            )
        ) count_or_music_labels ON v.file_name=count_or_music_labels.video_file_name
    WHERE v.rotated_file IS NOT NULL;
" | while IFS='|' read -r playlist_id playlist_name video_file_name rotated_file alias count_or_music; do
    # Sauter l'en-tête
    if [[ "$playlist_id" == "playlist_id" ]]; then
        continue
    fi

    # Ignorer les lignes vides
    if [[ -z "$playlist_id" || -z "$rotated_file" ]]; then
        continue
    fi
    set -x
    # Créer le dossier de la playlist
    PLAYLIST_DIR="$DOSSIER_PLAYLIST/$playlist_name"
    mkdir -p "$PLAYLIST_DIR"

    # Créer le lien symbolique
    # ln -sf "$rotated_file" "$PLAYLIST_DIR/$(basename "$(dirname "$rotated_file")").mp4"
    

    ln -sf "$rotated_file" "$PLAYLIST_DIR/$(video_filename $rotated_file $alias $count_or_music)"
    
    set +x

done