-- main.setup.db.sqlite.sql:
--  file that contains the sqlite SQL used to setup the database.
--  idea is to have the sqlite SQL in a separate ideally small file to
--   a) be able to tweak/see SQL database setup without necessarily force recompilation
--   b) change for syntax highlighting...
--  tradeoff challenges assumed are issues with:
--   a) split of individual SQL commands and
--   b) handling of comments
CREATE TABLE IF NOT EXISTS sources (
    id INTEGER PRIMARY KEY,
    parent_id INTEGER REFERENCES sources(id),
    name TEXT,
    timestamp INTEGER, 
    UNIQUE (parent_id,name) ON CONFLICT IGNORE
);
CREATE INDEX IF NOT EXISTS sources_index__timestamp ON sources(timestamp);
CREATE INDEX IF NOT EXISTS sources_index__parent_id ON sources(parent_id);
CREATE INDEX IF NOT EXISTS sources_index__name ON sources(name);
CREATE INDEX IF NOT EXISTS sources_index__parent_id__name ON sources(parent_id,name);
--CREATE INDEX IF NOT EXISTS sources_index__parent_id__name__timestamp ON sources(parent_id,name,timestamp);
CREATE INDEX IF NOT EXISTS sources_index__parent_id__name ON sources(parent_id,name);

INSERT OR IGNORE INTO sources (id,parent_id,name,timestamp) VALUES (0, 0, '/', 0);
--  files
CREATE TABLE IF NOT EXISTS files(
    id INTEGER PRIMARY KEY,
    source_id INTEGER REFERENCES sources(id),
    name TEXT,
    size INTEGER,
    mtime INTEGER,
    timestamp INTEGER, 
    hash BLOB,
    UNIQUE (source_id,name,size,mtime) ON CONFLICT IGNORE
);
CREATE INDEX IF NOT EXISTS files_index__timestamp ON files(timestamp);
CREATE INDEX IF NOT EXISTS files_index__hash ON files(hash);
-- for stmt_select_file_id 
CREATE INDEX IF NOT EXISTS files_index__source_id__name__timestamp ON files(source_id,name,timestamp);
CREATE INDEX IF NOT EXISTS files_index__source_id__name__size__mtime ON files(source_id,name,size,mtime);

-- hashes
-- CREATE TABLE IF NOT EXISTS hashes(
--     id INTEGER PRIMARY KEY,
--     hash BLOB,
--     timestamp INTEGER, 
--     UNIQUE (hash) ON CONFLICT IGNORE
-- );
-- CREATE INDEX IF NOT EXISTS hashes_index__timestamp ON hashes(timestamp);
-- CREATE INDEX IF NOT EXISTS hashes_index__hash ON hashes(hash);