-- services/mam-api/src/db/schema_patch_editor.sql
-- Run once against the Wild Dragon PostgreSQL database.

-- Named timelines within a project (multiple per project, like Premiere)
CREATE TABLE IF NOT EXISTS sequences (
  id          UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  project_id  UUID NOT NULL REFERENCES projects ON DELETE CASCADE,
  name        TEXT NOT NULL DEFAULT 'Sequence 1',
  frame_rate  NUMERIC(6,3) NOT NULL DEFAULT 59.94,
  width       INTEGER NOT NULL DEFAULT 1920,
  height      INTEGER NOT NULL DEFAULT 1080,
  created_at  TIMESTAMPTZ DEFAULT NOW(),
  updated_at  TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_sequences_project_id ON sequences(project_id);
CREATE INDEX IF NOT EXISTS idx_sequences_updated_at ON sequences(updated_at DESC);

-- Clips placed on a sequence timeline
CREATE TABLE IF NOT EXISTS sequence_clips (
  id                   UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
  sequence_id          UUID NOT NULL REFERENCES sequences ON DELETE CASCADE,
  asset_id             UUID NOT NULL REFERENCES assets ON DELETE CASCADE,
  track                INTEGER NOT NULL DEFAULT 0,
  -- track encoding: 0=V1, 1=V2, 100=A1, 101=A2
  timeline_in_frames   BIGINT NOT NULL,
  timeline_out_frames  BIGINT NOT NULL,
  source_in_frames     BIGINT NOT NULL DEFAULT 0,
  source_out_frames    BIGINT NOT NULL,
  created_at           TIMESTAMPTZ DEFAULT NOW(),
  updated_at           TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_sequence_clips_sequence_id ON sequence_clips(sequence_id);
CREATE INDEX IF NOT EXISTS idx_sequence_clips_track_position ON sequence_clips(sequence_id, track, timeline_in_frames);