-- 退款资产后处理：逐次尝试记录 + 退款单上的当前状态、次数、最后错误与下次重试时间。
-- 每单自动重试最多 10 次，尝试记录量很小，不分区。
BEGIN;

ALTER TABLE tb_refund_request
    ADD COLUMN IF NOT EXISTS asset_post_status smallint NOT NULL DEFAULT 0,
    ADD COLUMN IF NOT EXISTS asset_post_attempts int NOT NULL DEFAULT 0,
    ADD COLUMN IF NOT EXISTS asset_post_last_error varchar(500) NOT NULL DEFAULT '',
    ADD COLUMN IF NOT EXISTS asset_post_next_at timestamptz;

COMMENT ON COLUMN tb_refund_request.asset_post_status IS '资产后处理状态 0-未开始 1-待重试 2-已完成 3-需人工处理';
COMMENT ON COLUMN tb_refund_request.asset_post_attempts IS '资产后处理已尝试次数';
COMMENT ON COLUMN tb_refund_request.asset_post_last_error IS '资产后处理最后一次错误摘要';
COMMENT ON COLUMN tb_refund_request.asset_post_next_at IS '资产后处理下次自动重试时间，为空表示可立即执行';

-- 已完成的存量退款单同步为已完成。
UPDATE tb_refund_request SET asset_post_status = 2 WHERE asset_reset = true AND asset_post_status = 0;

CREATE INDEX IF NOT EXISTS idx_refund_request_asset_post_status ON tb_refund_request (asset_post_status, asset_post_next_at);

CREATE TABLE IF NOT EXISTS tb_refund_post_process_attempt (
    id BIGSERIAL PRIMARY KEY,
    refund_id BIGINT NOT NULL,
    refund_no VARCHAR(64) NOT NULL DEFAULT '',
    step VARCHAR(32) NOT NULL,
    asset_type VARCHAR(16) NOT NULL DEFAULT '',
    asset_id BIGINT NOT NULL DEFAULT 0,
    iccid VARCHAR(30) NOT NULL DEFAULT '',
    attempt INT NOT NULL,
    trigger VARCHAR(16) NOT NULL,
    result VARCHAR(16) NOT NULL,
    error_code VARCHAR(32) NOT NULL DEFAULT '',
    error_message VARCHAR(500) NOT NULL DEFAULT '',
    duration_ms INT NOT NULL DEFAULT 0,
    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
);

COMMENT ON TABLE tb_refund_post_process_attempt IS '退款资产后处理逐次尝试记录，只新增不修改';
COMMENT ON COLUMN tb_refund_post_process_attempt.step IS '处理步骤 load-读取订单与资产 invalidate-套餐失效 activate-接续激活 check_main-查询生效主套餐 stop-停机评估或停机 mark-标记完成 done-全部完成';
COMMENT ON COLUMN tb_refund_post_process_attempt.trigger IS '触发方式 outbox-Outbox投递 manual-人工重试';
COMMENT ON COLUMN tb_refund_post_process_attempt.result IS '结果 success-成功 failed-失败';

CREATE INDEX IF NOT EXISTS idx_refund_post_attempt_refund ON tb_refund_post_process_attempt (refund_id, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_refund_post_attempt_time ON tb_refund_post_process_attempt (created_at DESC);
CREATE INDEX IF NOT EXISTS idx_refund_post_attempt_result ON tb_refund_post_process_attempt (result, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_refund_post_attempt_error ON tb_refund_post_process_attempt (error_code, created_at DESC);

COMMIT;