-- Migration 118: Whistleblower (HinSchG) — Report + Message tables
-- Meldestelle fuer Hinweisgeber gemaess HinSchG §§ 12-18

CREATE TABLE IF NOT EXISTS compliance_whistleblower_reports (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    tenant_id UUID NOT NULL,
    reference_number VARCHAR(50) NOT NULL,
    access_key VARCHAR(20) NOT NULL,
    category VARCHAR(30) NOT NULL DEFAULT 'other',
    status VARCHAR(30) NOT NULL DEFAULT 'new',
    priority VARCHAR(20) NOT NULL DEFAULT 'normal',
    title VARCHAR(500) NOT NULL,
    description TEXT NOT NULL,
    is_anonymous BOOLEAN NOT NULL DEFAULT TRUE,
    reporter_name VARCHAR(300),
    reporter_email VARCHAR(300),
    reporter_phone VARCHAR(100),
    assigned_to VARCHAR(300),
    received_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    acknowledged_at TIMESTAMPTZ,
    deadline_acknowledgment TIMESTAMPTZ,
    deadline_feedback TIMESTAMPTZ,
    closed_at TIMESTAMPTZ,
    closure_reason TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    UNIQUE(tenant_id, reference_number),
    UNIQUE(tenant_id, access_key)
);

CREATE INDEX IF NOT EXISTS idx_wb_reports_tenant ON compliance_whistleblower_reports(tenant_id);
CREATE INDEX IF NOT EXISTS idx_wb_reports_status ON compliance_whistleblower_reports(tenant_id, status);
CREATE INDEX IF NOT EXISTS idx_wb_reports_access ON compliance_whistleblower_reports(access_key);

CREATE TABLE IF NOT EXISTS compliance_whistleblower_messages (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    report_id UUID NOT NULL REFERENCES compliance_whistleblower_reports(id) ON DELETE CASCADE,
    sender_type VARCHAR(20) NOT NULL DEFAULT 'reporter',
    message TEXT NOT NULL,
    is_internal BOOLEAN NOT NULL DEFAULT FALSE,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_wb_messages_report ON compliance_whistleblower_messages(report_id);

CREATE TABLE IF NOT EXISTS compliance_whistleblower_measures (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    report_id UUID NOT NULL REFERENCES compliance_whistleblower_reports(id) ON DELETE CASCADE,
    title VARCHAR(500) NOT NULL,
    description TEXT,
    status VARCHAR(20) NOT NULL DEFAULT 'planned',
    responsible VARCHAR(300),
    due_date TIMESTAMPTZ,
    completed_at TIMESTAMPTZ,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_wb_measures_report ON compliance_whistleblower_measures(report_id);