-- Narrative layer, first slice: a mystery (campaign) wrapping ordered level
-- template versions, an authored NPC cast with named poses, scripted cutscenes,
-- and a per-user playthrough that owns game state. Dialogue content is fixed and
-- owned by the mystery; progress is a reference recorded in seen_dialogue.

CREATE TABLE osint.mysteries (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  slug TEXT NOT NULL UNIQUE,
  title TEXT NOT NULL,
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE TABLE osint.mystery_chapters (
  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
  chapter_index INTEGER NOT NULL CHECK (chapter_index >= 1),
  level_template_version_id UUID NOT NULL REFERENCES osint.level_template_versions(id),
  PRIMARY KEY (mystery_id, chapter_index)
);

CREATE TABLE osint.npcs (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
  npc_key TEXT NOT NULL,
  name TEXT NOT NULL,
  role TEXT NOT NULL DEFAULT '',
  default_pose_key TEXT,
  UNIQUE (mystery_id, npc_key)
);

-- A pose is a named portrait variant backed by an immutable shared asset. A
-- missing pose is never an error; the client falls back to the NPC default pose
-- and then to no artwork.
CREATE TABLE osint.npc_poses (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  npc_id UUID NOT NULL REFERENCES osint.npcs(id) ON DELETE CASCADE,
  pose_key TEXT NOT NULL,
  asset_id UUID REFERENCES osint.assets(id),
  UNIQUE (npc_id, pose_key)
);

CREATE TABLE osint.cutscenes (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
  chapter_index INTEGER,
  slot TEXT NOT NULL CHECK (slot IN ('mystery_intro','level_intro','level_debrief','mystery_resolution')),
  title TEXT NOT NULL DEFAULT '',
  -- Chapter-scoped slots carry a chapter; mystery-scoped slots do not.
  CHECK (
    (slot IN ('mystery_intro','mystery_resolution') AND chapter_index IS NULL)
    OR (slot IN ('level_intro','level_debrief') AND chapter_index IS NOT NULL)
  )
);
CREATE INDEX cutscenes_mystery_idx ON osint.cutscenes (mystery_id);

-- One utterance. `kind` reserves the LLM path; `body_text` is required for
-- scripted steps and null for generated ones. `advances_to` reserves branching;
-- null means "next by sort_order".
CREATE TABLE osint.dialogue_steps (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  cutscene_id UUID NOT NULL REFERENCES osint.cutscenes(id) ON DELETE CASCADE,
  step_key TEXT NOT NULL,
  sort_order INTEGER NOT NULL,
  npc_id UUID NOT NULL REFERENCES osint.npcs(id),
  pose_key TEXT,
  kind TEXT NOT NULL DEFAULT 'scripted' CHECK (kind IN ('scripted','generated')),
  body_text TEXT,
  advances_to TEXT,
  UNIQUE (cutscene_id, sort_order),
  UNIQUE (cutscene_id, step_key),
  CHECK ((kind = 'scripted' AND body_text IS NOT NULL) OR kind = 'generated')
);

-- The single object that owns a player's game state, bound to the JWT identity.
CREATE TABLE osint.playthroughs (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  user_id TEXT NOT NULL,
  mystery_id UUID NOT NULL REFERENCES osint.mysteries(id) ON DELETE CASCADE,
  current_chapter_index INTEGER NOT NULL DEFAULT 1 CHECK (current_chapter_index >= 1),
  current_level_id UUID REFERENCES osint.levels(id) ON DELETE SET NULL,
  status TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active','finished')),
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);
CREATE INDEX playthroughs_user_idx ON osint.playthroughs (user_id, updated_at DESC);

-- Progress as a reference to fixed authored dialogue, never a copy of its text.
CREATE TABLE osint.seen_dialogue (
  playthrough_id UUID NOT NULL REFERENCES osint.playthroughs(id) ON DELETE CASCADE,
  cutscene_id UUID NOT NULL REFERENCES osint.cutscenes(id) ON DELETE CASCADE,
  seen_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  PRIMARY KEY (playthrough_id, cutscene_id)
);

COMMENT ON TABLE osint.playthroughs IS 'Per-user instance of a mystery; owns current chapter and live level. Bound to the JWT sub (or the development test user).';
COMMENT ON TABLE osint.dialogue_steps IS 'Fixed authored utterances owned by the immutable mystery. seen_dialogue references these ids; they are never cloned per playthrough.';