-- Migration: Create stream_jobs table
-- Description: Table pour suivre les jobs d'encodage audio
-- Date: 2025-01-27

CREATE TABLE IF NOT EXISTS stream_jobs (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    track_id UUID NOT NULL,
    status TEXT NOT NULL DEFAULT 'pending' CHECK (status IN ('pending', 'encoding', 'done', 'error')),
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    error_message TEXT,
    
    -- Index pour performance
    CONSTRAINT stream_jobs_track_id_fkey FOREIGN KEY (track_id) REFERENCES tracks(id) ON DELETE CASCADE
);

-- Index pour requêtes fréquentes
CREATE INDEX IF NOT EXISTS idx_stream_jobs_track_id ON stream_jobs(track_id);
CREATE INDEX IF NOT EXISTS idx_stream_jobs_status ON stream_jobs(status);
CREATE INDEX IF NOT EXISTS idx_stream_jobs_created_at ON stream_jobs(created_at);

-- Trigger pour mettre à jour updated_at automatiquement
CREATE OR REPLACE FUNCTION update_stream_jobs_updated_at()
RETURNS TRIGGER AS $$
BEGIN
    NEW.updated_at = NOW();
    RETURN NEW;
END;
$$ LANGUAGE plpgsql;

DROP TRIGGER IF EXISTS trigger_update_stream_jobs_updated_at ON stream_jobs;

CREATE TRIGGER trigger_update_stream_jobs_updated_at
    BEFORE UPDATE ON stream_jobs
    FOR EACH ROW
    EXECUTE FUNCTION update_stream_jobs_updated_at();