CREATE TABLE IF NOT EXISTS growth_reports (
    id text PRIMARY KEY,
    merchant_id bigint NOT NULL REFERENCES merchants(id),
    terminal_id bigint REFERENCES terminals(id),
    terminal_source_key text,
    fingerprint text NOT NULL,
    revision integer NOT NULL DEFAULT 1 CHECK (revision > 0),
    status text NOT NULL CHECK (status IN ('QUEUED','ANALYZING','GENERATING','READY','PARTIAL','FAILED')),
    horizon_days integer NOT NULL DEFAULT 90 CHECK (horizon_days = 90),
    forecast_start_date date,
    dataset_watermark text NOT NULL,
    catalog_version text NOT NULL,
    analytics_version text NOT NULL,
    prompt_version text NOT NULL,
    schema_version text NOT NULL,
    model text NOT NULL,
    deterministic_evidence jsonb,
    ai_response jsonb,
    failure_code text,
    input_tokens bigint NOT NULL DEFAULT 0 CHECK (input_tokens >= 0),
    output_tokens bigint NOT NULL DEFAULT 0 CHECK (output_tokens >= 0),
    latency_ms bigint NOT NULL DEFAULT 0 CHECK (latency_ms >= 0),
    provider_request_id text,
    estimated_cost text,
    manual_refresh boolean NOT NULL DEFAULT false,
    tehran_refresh_day date,
    created_at timestamptz NOT NULL DEFAULT now(),
    updated_at timestamptz NOT NULL DEFAULT now(),
    completed_at timestamptz
);
-- statement-break
ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS provider_request_id text;
-- statement-break
ALTER TABLE growth_reports ADD COLUMN IF NOT EXISTS estimated_cost text;
-- statement-break
ALTER TABLE growth_reports ALTER COLUMN deterministic_evidence DROP NOT NULL;
-- statement-break
CREATE UNIQUE INDEX IF NOT EXISTS growth_reports_current_fingerprint_idx
    ON growth_reports (merchant_id, fingerprint)
    WHERE manual_refresh = false AND status IN ('QUEUED','ANALYZING','GENERATING','READY','PARTIAL');
-- statement-break
CREATE UNIQUE INDEX IF NOT EXISTS growth_reports_daily_merchant_refresh_idx
    ON growth_reports (merchant_id, tehran_refresh_day)
    WHERE manual_refresh = true;
-- statement-break
CREATE INDEX IF NOT EXISTS growth_reports_scope_latest_idx
    ON growth_reports (merchant_id, terminal_id, revision DESC, created_at DESC);
-- statement-break
CREATE INDEX IF NOT EXISTS growth_reports_pending_idx
    ON growth_reports (created_at)
    WHERE status IN ('QUEUED','ANALYZING','GENERATING');
-- statement-break
CREATE TABLE IF NOT EXISTS growth_report_idempotency (
    merchant_id bigint NOT NULL REFERENCES merchants(id),
    idempotency_key text NOT NULL,
    request_hash text NOT NULL,
    report_id text NOT NULL REFERENCES growth_reports(id) ON DELETE CASCADE,
    created_at timestamptz NOT NULL DEFAULT now(),
    PRIMARY KEY (merchant_id, idempotency_key)
);
-- statement-break
CREATE INDEX IF NOT EXISTS growth_report_idempotency_created_idx
    ON growth_report_idempotency (created_at);
-- statement-break
INSERT INTO schema_migrations(version) VALUES (2) ON CONFLICT DO NOTHING;