-- note: sqlite-specific migration due to the types of the columns
-- When used for an ID, a blob is a UUID in byte form, or a vector of those like for friends list.
-- Otherwise, for content, a blob is just binary data, possibly representing UTF-8 text.
-- Dates are ints, unix epoch style

-- users
create table if not exists witches (
  id blob not null primary key,
  last_seen int,
  name text,
  email text,
  secret blob not null, -- encrypted password? need to figure auth out
  created_at int,
  last_updated int
);

-- table of things to watch
create table if not exists watches (
  id blob not null primary key,
  typ int not null, -- enum for movie or tv show or whatev
  title text not null,
  imdb text, -- possible url for imdb or other metadata-esque site to show the user
  runtime int,
  release_date int,
  created_at int,
  last_updated int
);

-- table of what people want to watch
create table if not exists witch_watch (
  id blob not null primary key,
  witch blob not null,
  watch blob not null,
  party blob, -- list of witch IDs, but we can also scan for friends that want to watch the same thing
  priority int, -- 1-5 how much do you want to watch it
  public boolean not null,
  watched boolean not null,
  when_added int,
  when_watched int,
  created_at int,
  last_updated int,
  foreign key (witch) references witches (id) on delete cascade on update no action,
  foreign key (watch) references watches (id) on delete cascade on update no action
);

-- friend lists; this should really be a graph db, maybe the whole thing should be
-- TODO: look into replacing sqlite with https://www.cozodb.org/
create table if not exists covens (
  witch blob not null primary key,
  coven blob, -- possibly empty friends list in some app-specific format
  created_at int,
  last_updated int,
  foreign key (witch) references witches (id) on delete cascade on update no action
);

create table if not exists watch_notes (
  id blob not null primary key,
  witch blob not null,
  watch blob not null,
  note blob,
  public boolean not null,
  created_at int,
  last_updated int,
  foreign key (witch) references witches (id) on delete cascade on update no action,
  foreign key (watch) references watches (id) on delete cascade on update no action
);

-- indices, not needed for covens
create index if not exists witch_dex on witches ( name, email );
create index if not exists watch_dex on watches ( title, runtime, release_date );
create index if not exists ww_dex on witch_watch ( witch, watch, public );
create index if not exists note_dex on watch_notes ( witch, watch, public );