-- This Source Code Form is subject to the terms of the Mozilla Public
-- License, v. 2.0. If a copy of the MPL was not distributed with this
-- file, You can obtain one at http://mozilla.org/MPL/2.0/.

-- XXX - TODO - moz_annos
-- XXX - TODO - moz_anno_attributes
-- XXX - TODO - moz_items_annos

CREATE TABLE IF NOT EXISTS moz_places (
    id INTEGER PRIMARY KEY,
    url LONGVARCHAR NOT NULL,
    title LONGVARCHAR,
    -- note - desktop has rev_host here - that's now in moz_origin.
    visit_count_local INTEGER NOT NULL DEFAULT 0,
    visit_count_remote INTEGER NOT NULL DEFAULT 0,
    hidden INTEGER DEFAULT 0 NOT NULL,
    typed INTEGER DEFAULT 0 NOT NULL, -- XXX - is 'typed' ok? Note also we want this as a *count*, not a bool.
    frecency INTEGER DEFAULT -1 NOT NULL,
    -- XXX - splitting last visit into local and remote correct?
    last_visit_date_local INTEGER NOT NULL DEFAULT 0,
    last_visit_date_remote INTEGER NOT NULL DEFAULT 0,
    guid TEXT NOT NULL UNIQUE,
    foreign_count INTEGER DEFAULT 0 NOT NULL,
    url_hash INTEGER DEFAULT 0 NOT NULL,
    description TEXT, -- XXXX - title above?
    preview_image_url TEXT,
    -- origin_id would ideally be NOT NULL, but we use a trigger to keep
    -- it up to date, so do perform the initial insert with a null.
    origin_id INTEGER,
    -- a couple of sync-related fields.
    sync_status TINYINT NOT NULL DEFAULT 1, -- 1 is SyncStatus::New
    sync_change_counter INTEGER NOT NULL DEFAULT 0, -- adding visits will increment this
    unknown_fields TEXT,

    FOREIGN KEY(origin_id) REFERENCES moz_origins(id) ON DELETE CASCADE
);

CREATE INDEX IF NOT EXISTS url_hashindex ON moz_places(url_hash);
CREATE INDEX IF NOT EXISTS visitcountlocal ON moz_places(visit_count_local);
CREATE INDEX IF NOT EXISTS visitcountremote ON moz_places(visit_count_remote);
CREATE INDEX IF NOT EXISTS frecencyindex ON moz_places(frecency);
CREATE INDEX IF NOT EXISTS lastvisitdatelocalindex ON moz_places(last_visit_date_local);
CREATE INDEX IF NOT EXISTS lastvisitdateremoteindex ON moz_places(last_visit_date_remote);
CREATE UNIQUE INDEX IF NOT EXISTS guid_uniqueindex ON moz_places(guid);
CREATE INDEX IF NOT EXISTS originidindex ON moz_places(origin_id);


CREATE TABLE IF NOT EXISTS moz_places_tombstones (
    guid TEXT PRIMARY KEY
) WITHOUT ROWID;


-- This table stores Place IDs with stale frecencies, along with the time they
-- were marked as stale. Maintenance and Sync periodically recalculate
-- frecencies for Place IDs in this table.
CREATE TABLE IF NOT EXISTS moz_places_stale_frecencies (
    place_id INTEGER PRIMARY KEY NOT NULL REFERENCES moz_places(id)
                                          ON DELETE CASCADE,
    stale_at INTEGER NOT NULL -- In milliseconds.
);


CREATE TABLE IF NOT EXISTS moz_historyvisits (
    id INTEGER PRIMARY KEY,
    is_local INTEGER NOT NULL, -- XXX - not in desktop - will always be true for visits added locally, always false visits added by sync.
    from_visit INTEGER, -- XXX - self-reference?
    place_id INTEGER NOT NULL,
    visit_date INTEGER NOT NULL,
    visit_type INTEGER NOT NULL,
    -- session INTEGER, -- XXX - what is 'session'? Appears unused.
    unknown_fields TEXT,

    FOREIGN KEY(place_id) REFERENCES moz_places(id) ON DELETE CASCADE,
    FOREIGN KEY(from_visit) REFERENCES moz_historyvisits(id)
);

CREATE INDEX IF NOT EXISTS placedateindex ON moz_historyvisits(place_id, visit_date);
CREATE INDEX IF NOT EXISTS fromindex ON moz_historyvisits(from_visit);
CREATE INDEX IF NOT EXISTS dateindex ON moz_historyvisits(visit_date);
CREATE INDEX IF NOT EXISTS islocalindex ON moz_historyvisits(is_local);

-- Greatly helps the multi-join query in frecency.
CREATE INDEX IF NOT EXISTS visits_from_type_idx ON moz_historyvisits(from_visit, visit_type);

CREATE TABLE IF NOT EXISTS moz_historyvisit_tombstones (
    place_id INTEGER NOT NULL,
    visit_date INTEGER NOT NULL,
    FOREIGN KEY(place_id) REFERENCES moz_places(id) ON DELETE CASCADE,
    PRIMARY KEY(place_id, visit_date)
);


CREATE TABLE IF NOT EXISTS moz_inputhistory (
    place_id INTEGER NOT NULL,
    input LONGVARCHAR NOT NULL,
    use_count INTEGER,

    PRIMARY KEY (place_id, input),
    FOREIGN KEY(place_id) REFERENCES moz_places(id) ON DELETE CASCADE
);


CREATE TABLE IF NOT EXISTS moz_bookmarks (
    id INTEGER PRIMARY KEY,
    fk INTEGER DEFAULT NULL, -- place_id
    type INTEGER NOT NULL,
    parent INTEGER,
    position INTEGER NOT NULL,
    title TEXT, -- a'la bug 1356159, NULL is special here - it means 'not edited'
    dateAdded INTEGER NOT NULL DEFAULT 0,
    lastModified INTEGER NOT NULL DEFAULT 0,
    guid TEXT NOT NULL UNIQUE CHECK(length(guid) == 12),

    syncStatus INTEGER NOT NULL DEFAULT 0,
    syncChangeCounter INTEGER NOT NULL DEFAULT 1,

    -- bookmarks must have a fk to a URL, other types must not.
    CHECK((type == 1 AND fk IS NOT NULL) OR (type > 1 AND fk IS NULL))
    -- only the root is allowed to have a non-null parent
    CHECK(guid == "root________" OR parent IS NOT NULL)

    FOREIGN KEY(fk) REFERENCES moz_places(id) ON DELETE RESTRICT
    FOREIGN KEY(parent) REFERENCES moz_bookmarks(id) ON DELETE CASCADE
);

-- CREATE INDEX IF NOT EXISTS itemindex ON moz_bookmarks(fk, type);
-- CREATE INDEX IF NOT EXISTS parentindex ON moz_bookmarks(parent, position);
CREATE INDEX IF NOT EXISTS itemlastmodifiedindex ON moz_bookmarks(fk, lastModified);
-- CREATE INDEX IF NOT EXISTS dateaddedindex ON moz_bookmarks(dateAdded);
CREATE UNIQUE INDEX IF NOT EXISTS guid_uniqueindex ON moz_bookmarks(guid);


CREATE TABLE IF NOT EXISTS moz_bookmarks_deleted (
    guid TEXT PRIMARY KEY,
    dateRemoved INTEGER NOT NULL
) WITHOUT ROWID;

-- Note: desktop has/had a 'keywords' table, but we intentionally do not.


CREATE TABLE IF NOT EXISTS moz_origins (
    id INTEGER PRIMARY KEY,
    prefix TEXT NOT NULL,
    host TEXT NOT NULL,
    rev_host TEXT NOT NULL,
    frecency INTEGER NOT NULL, -- XXX - why not default of -1 like in moz_places?
    UNIQUE (prefix, host)
);

CREATE INDEX IF NOT EXISTS hostindex ON moz_origins(rev_host);


-- This table holds key-value metadata for Places and its consumers. Sync stores
-- the sync IDs for the bookmarks and history collections in this table, and the
-- last sync time for history.
CREATE TABLE IF NOT EXISTS moz_meta (
    key TEXT PRIMARY KEY,
    value NOT NULL
) WITHOUT ROWID;

-- Support for tags.
CREATE TABLE IF NOT EXISTS moz_tags(
    id INTEGER PRIMARY KEY,
    tag TEXT UNIQUE NOT NULL,
    lastModified INTEGER NOT NULL
);

CREATE TABLE IF NOT EXISTS moz_tags_relation(
    tag_id INTEGER NOT NULL REFERENCES moz_tags(id) ON DELETE CASCADE,
    place_id INTEGER NOT NULL REFERENCES moz_places(id) ON DELETE CASCADE,
    PRIMARY KEY(tag_id, place_id)
) WITHOUT ROWID;

-- This table holds synced items, including tombstones. It's unused if Sync
-- isn't configured. At the end of a sync, this table's contents should match
-- both what's on the server, and the local tree in `moz_bookmarks`.
CREATE TABLE IF NOT EXISTS moz_bookmarks_synced(
    id INTEGER PRIMARY KEY,
    -- We intentionally don't validate GUIDs, as we allow and fix up invalid
    -- ones.
    guid TEXT UNIQUE NOT NULL,
    -- The `parentid` from the record.
    parentGuid TEXT,
    -- The server modified time, in milliseconds. This is *not* a
    -- ServerTimestamp, which is in fractional seconds.
    serverModified INTEGER NOT NULL DEFAULT 0,
    needsMerge BOOLEAN NOT NULL DEFAULT 0,
    validity INTEGER NOT NULL DEFAULT 1, -- SyncValidity::Valid
    isDeleted BOOLEAN NOT NULL DEFAULT 0,
    kind INTEGER NOT NULL DEFAULT -1,
    -- The creation date, in milliseconds.
    dateAdded INTEGER NOT NULL DEFAULT 0,
    title TEXT,
    placeId INTEGER REFERENCES moz_places(id)
                    ON DELETE SET NULL,
    keyword TEXT,
    description TEXT,
    loadInSidebar BOOLEAN,
    smartBookmarkName TEXT,
    feedURL TEXT,
    siteURL TEXT,
    -- All unknown fields from the server record, encoded as a JSON object.
    unknownFields TEXT
);

CREATE INDEX IF NOT EXISTS moz_bookmarks_synced_urls ON moz_bookmarks_synced(placeId);
CREATE INDEX IF NOT EXISTS moz_bookmarks_synced_keywords ON moz_bookmarks_synced(keyword)
                                                            WHERE keyword NOT NULL;

-- This table holds parent-child relationships and positions for synced items,
-- from each folder's `children`. Unlike `moz_bookmarks`, this is stored
-- separately because we might see an incoming folder before its children. This
-- also lets us catch disagreements between a folder's `children` and its
-- childrens' `parentid`.
CREATE TABLE IF NOT EXISTS moz_bookmarks_synced_structure(
    guid TEXT,
    parentGuid TEXT REFERENCES moz_bookmarks_synced(guid)
                    ON DELETE CASCADE,
    position INTEGER NOT NULL,
    PRIMARY KEY(parentGuid, guid)
) WITHOUT ROWID;

-- This table holds tags for synced items.
CREATE TABLE IF NOT EXISTS moz_bookmarks_synced_tag_relation(
    itemId INTEGER NOT NULL REFERENCES moz_bookmarks_synced(id)
                            ON DELETE CASCADE,
    tagId INTEGER NOT NULL REFERENCES moz_tags(id)
                           ON DELETE CASCADE,
    PRIMARY KEY(itemId, tagId)
) WITHOUT ROWID;

-- This table holds search keywords for URLs. Desktop would like to replace
-- these with custom search engines eventually (bug 648398); however, we
-- must still round-trip keywords imported via Sync or migrated from Fennec.
-- Since none of the `moz_bookmarks_synced_*` tables are durable, we store
-- keywords for URLs in a separate table. Unlike Desktop, we don't support
-- custom POST data, since we don't sync it (bug 1345417), and Fennec
-- doesn't write it.
CREATE TABLE IF NOT EXISTS moz_keywords(
    place_id INTEGER PRIMARY KEY REFERENCES moz_places(id)
                     ON DELETE RESTRICT,
    keyword TEXT NOT NULL UNIQUE
);

----------------------------------------------------------------------
--------------------History Metadata----------------------------------
----------------------------------------------------------------------

-- These tables store metadata information related to moz_places.
-- None of this data is synced for now.
CREATE TABLE IF NOT EXISTS moz_places_metadata (
    id INTEGER PRIMARY KEY,
    created_at INTEGER NOT NULL DEFAULT 0,
    updated_at INTEGER NOT NULL DEFAULT 0,

    place_id INTEGER NOT NULL,

    total_view_time INTEGER NOT NULL DEFAULT 0, -- a rolling aggregate
    search_query_id INTEGER,
    referrer_place_id INTEGER,
    document_type INTEGER NOT NULL DEFAULT 0, -- 0=generic, 1=media
    typing_time INTEGER NOT NULL DEFAULT 0,
    key_presses INTEGER NOT NULL DEFAULT 0,

    FOREIGN KEY(place_id) REFERENCES moz_places(id) ON DELETE CASCADE,
    FOREIGN KEY(search_query_id) REFERENCES moz_places_metadata_search_queries(id) ON DELETE CASCADE,
    FOREIGN KEY(referrer_place_id) REFERENCES moz_places(id) ON DELETE CASCADE

    CHECK(place_id != referrer_place_id)
);

CREATE TABLE IF NOT EXISTS moz_places_metadata_search_queries (
    id INTEGER PRIMARY KEY,
    term TEXT NOT NULL UNIQUE
);

INSERT INTO moz_places(id, guid, url, frecency)
VALUES(1, 'page_guid___', 'https://example.com', -1);

INSERT INTO moz_bookmarks(id, type, parent, position, dateAdded, lastModified, guid)
VALUES(1, 2, NULL, 0, 1, 1, 'root________');

INSERT INTO moz_bookmarks(id, type, parent, position, dateAdded, lastModified, guid)
VALUES(2, 2, 1, 0, 1, 1, 'folder_guid_');

INSERT INTO moz_bookmarks(id, type, parent, position, dateAdded, lastModified, fk, guid)
VALUES(3, 1, 2, 0, 1, 1, 1, 'bmk_guid____');

INSERT INTO moz_bookmarks(id, type, parent, position, dateAdded, lastModified, guid)
VALUES(4, 3, 2, 1, 1, 1, 'sep_guid____');

PRAGMA user_version = 17;