-- ============================================================================
-- Inou Database Schema (inou.db)
-- ============================================================================
-- Medical data. Tables are NOT auto-created.
-- Use this file manually if you ever need to recreate tables.
--
-- OAuth tables are in separate auth.db (see schema-auth.sql)
-- ============================================================================

-- RBAC Access Grants
-- Stores who (grantee) can access whose (dossier) data with what permissions (ops)
CREATE TABLE IF NOT EXISTS access (
    access_id TEXT PRIMARY KEY,
    dossier_id TEXT,          -- whose data (encrypted)
    grantee_id TEXT,          -- who gets access (encrypted)
    entry_id TEXT,            -- specific entry, or empty for dossier-wide
    role TEXT NOT NULL,       -- role name (Family, Doctor, etc.)
    ops TEXT NOT NULL,        -- operations: r=read, w=write, d=delete, m=manage
    created_at INTEGER NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_access_grantee ON access(grantee_id);
CREATE INDEX IF NOT EXISTS idx_access_dossier ON access(dossier_id);
CREATE INDEX IF NOT EXISTS idx_access_entry ON access(entry_id);

-- Lab Test Properties (per LOINC code)
-- Public reference data (not PII). String fields auto-encrypted by db layer.
-- Values stored as int64 with x1,000,000 scaling for float precision.
CREATE TABLE IF NOT EXISTS lab_test (
    loinc_id TEXT PRIMARY KEY,     -- LOINC code e.g. "718-7"
    name TEXT NOT NULL,            -- English canonical e.g. "Hemoglobin"
    si_unit TEXT NOT NULL,         -- SI unit e.g. "g/L"
    direction TEXT NOT NULL DEFAULT 'range', -- "range", "lower_better", "higher_better"
    si_factor INTEGER NOT NULL DEFAULT 1000000  -- conventional→SI multiplier x1M
);

-- Lab Reference Ranges (always in SI units)
-- Synthetic PK: "loinc|source|sex|ageDays"
CREATE TABLE IF NOT EXISTS lab_reference (
    ref_id TEXT PRIMARY KEY,       -- synthetic composite key
    loinc_id TEXT NOT NULL,        -- FK to lab_test
    source TEXT NOT NULL,          -- "CALIPER", "IFCC"
    sex TEXT NOT NULL DEFAULT '',  -- "", "M", "F"
    age_days INTEGER NOT NULL DEFAULT 0,  -- start of age range (0 = birth)
    age_end INTEGER NOT NULL,      -- end of age range in days
    ref_low INTEGER NOT NULL DEFAULT -1,  -- lower bound x1M (-1 = no bound)
    ref_high INTEGER NOT NULL DEFAULT -1, -- upper bound x1M (-1 = no bound)
    unit TEXT NOT NULL              -- SI unit these values are in
);

CREATE INDEX IF NOT EXISTS idx_lab_reference_loinc ON lab_reference(loinc_id);