CREATE TABLE "user" (
  user_id TEXT PRIMARY KEY DEFAULT (lower(substr(hex(randomblob(4)), 1, 8) || '-' || substr(hex(randomblob(2)), 1, 4) || '-4' || substr(hex(randomblob(2)), 2, 3) || '-' || substr('89ab', abs(random()) % 4 + 1, 1) || substr(hex(randomblob(2)), 2, 3) || '-' || hex(randomblob(6)))),
  email TEXT NOT NULL UNIQUE,
  display_name TEXT NOT NULL,
  password_hash TEXT,
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP -- @date
);

CREATE TABLE company (
  company_id TEXT PRIMARY KEY DEFAULT (lower(substr(hex(randomblob(4)), 1, 8) || '-' || substr(hex(randomblob(2)), 1, 4) || '-4' || substr(hex(randomblob(2)), 2, 3) || '-' || substr('89ab', abs(random()) % 4 + 1, 1) || substr(hex(randomblob(2)), 2, 3) || '-' || hex(randomblob(6)))),
  name TEXT NOT NULL,
  registry_no TEXT,
  address_line1 TEXT,
  address_line2 TEXT,
  postcode TEXT,
  town TEXT,
  country TEXT,
  total_shares INTEGER NOT NULL DEFAULT 0,
  fiscal_year_end TEXT,
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP -- @date
);

CREATE TABLE company_member (
  member_id TEXT PRIMARY KEY DEFAULT (lower(substr(hex(randomblob(4)), 1, 8) || '-' || substr(hex(randomblob(2)), 1, 4) || '-4' || substr(hex(randomblob(2)), 2, 3) || '-' || substr('89ab', abs(random()) % 4 + 1, 1) || substr(hex(randomblob(2)), 2, 3) || '-' || hex(randomblob(6)))),
  company_id TEXT NOT NULL REFERENCES company(company_id) ON DELETE CASCADE,
  user_id TEXT NOT NULL REFERENCES "user"(user_id) ON DELETE CASCADE,
  role TEXT NOT NULL CHECK (role IN ('managing_director', 'shareholder', 'angel')),
  shares INTEGER,
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP, -- @date
  UNIQUE (company_id, user_id)
);

CREATE INDEX idx_company_member_company ON company_member(company_id);
CREATE INDEX idx_company_member_user ON company_member(user_id);

CREATE TABLE resolution (
  resolution_id TEXT PRIMARY KEY DEFAULT (lower(substr(hex(randomblob(4)), 1, 8) || '-' || substr(hex(randomblob(2)), 1, 4) || '-4' || substr(hex(randomblob(2)), 2, 3) || '-' || substr('89ab', abs(random()) % 4 + 1, 1) || substr(hex(randomblob(2)), 2, 3) || '-' || hex(randomblob(6)))),
  company_id TEXT NOT NULL REFERENCES company(company_id) ON DELETE CASCADE,
  template_key TEXT NOT NULL,
  title TEXT NOT NULL,
  status TEXT NOT NULL DEFAULT 'draft' CHECK (status IN ('draft', 'published', 'archived')),
  field_values TEXT NOT NULL DEFAULT '{}', -- @json:Record<string, unknown>
  pdf_key TEXT,
  created_by TEXT NOT NULL REFERENCES "user"(user_id),
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP, -- @date
  published_at TEXT -- @date
);

CREATE INDEX idx_resolution_company ON resolution(company_id);
CREATE INDEX idx_resolution_status ON resolution(status);

CREATE TABLE audit_log (
  audit_id TEXT PRIMARY KEY DEFAULT (lower(substr(hex(randomblob(4)), 1, 8) || '-' || substr(hex(randomblob(2)), 1, 4) || '-4' || substr(hex(randomblob(2)), 2, 3) || '-' || substr('89ab', abs(random()) % 4 + 1, 1) || substr(hex(randomblob(2)), 2, 3) || '-' || hex(randomblob(6)))),
  table_name TEXT NOT NULL,
  record_id TEXT NOT NULL,
  action TEXT NOT NULL CHECK (action IN ('INSERT', 'UPDATE', 'DELETE')),
  user_id TEXT REFERENCES "user"(user_id),
  changed_fields TEXT, -- @json:Record<string, unknown>
  created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP -- @date
);

CREATE INDEX idx_audit_log_record ON audit_log(table_name, record_id);
CREATE INDEX idx_audit_log_created ON audit_log(created_at);