-- 2023-12-27: Add moderation log

-- +migrate Up

create table audit_log (
    id               bigint primary key,
    -- the target user of this action
    -- this is *not* a foreign key. if the user is deleted the audit log entry should stay, just showing as "deleted user <id>"
    target_user_id   bigint not null,
    -- the target member of this action
    target_member_id bigint,
    -- the moderator that took this action
    -- as with target_user_id, the audit log entry should not be deleted if the moderator's account is.
    moderator_id     bigint not null,
    -- the report this was in response to. may be null if this action was taken by a moderator not responding to a report.
    report_id        integer references reports (id) on delete set null,

    -- the reason for this action. always set, but may be 'None' if the action taken was 'ignore'.
    reason       text not null default 'None',
    action_taken text not null, -- enum, currently: 'ignore', 'warn', 'suspend'
    cleared_data jsonb null -- backup of the cleared data. may be null if no data was cleared
);

create index audit_log_target_user_idx on audit_log (target_user_id);
create index audit_log_target_member_idx on audit_log (target_member_id);
create index audit_log_moderator_idx on audit_log (moderator_id);

-- +migrate Down

drop table audit_log;