DROP TYPE IF EXISTS list_type CASCADE; CREATE TYPE list_type AS ENUM ('public', 'private', 'temporary');
DROP TYPE IF EXISTS list_optin CASCADE; CREATE TYPE list_optin AS ENUM ('single', 'double');
DROP TYPE IF EXISTS subscriber_status CASCADE; CREATE TYPE subscriber_status AS ENUM ('enabled', 'disabled', 'blocklisted');
DROP TYPE IF EXISTS subscription_status CASCADE; CREATE TYPE subscription_status AS ENUM ('unconfirmed', 'confirmed', 'unsubscribed');
DROP TYPE IF EXISTS campaign_status CASCADE; CREATE TYPE campaign_status AS ENUM ('draft', 'running', 'scheduled', 'paused', 'cancelled', 'finished');
DROP TYPE IF EXISTS campaign_type CASCADE; CREATE TYPE campaign_type AS ENUM ('regular', 'optin');
DROP TYPE IF EXISTS content_type CASCADE; CREATE TYPE content_type AS ENUM ('richtext', 'html', 'plain', 'markdown');

-- subscribers
DROP TABLE IF EXISTS subscribers CASCADE;
CREATE TABLE subscribers (
    id              SERIAL PRIMARY KEY,
    uuid uuid       NOT NULL UNIQUE,
    email           TEXT NOT NULL UNIQUE,
    name            TEXT NOT NULL,
    attribs         JSONB NOT NULL DEFAULT '{}',
    status          subscriber_status NOT NULL DEFAULT 'enabled',
    campaigns       INTEGER[],

    created_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
DROP INDEX IF EXISTS idx_subs_email; CREATE UNIQUE INDEX idx_subs_email ON subscribers(LOWER(email));
DROP INDEX IF EXISTS idx_subs_status; CREATE INDEX idx_subs_status ON subscribers(status);

-- lists
DROP TABLE IF EXISTS lists CASCADE;
CREATE TABLE lists (
    id              SERIAL PRIMARY KEY,
    uuid            uuid NOT NULL UNIQUE,
    name            TEXT NOT NULL,
    type            list_type NOT NULL,
    optin           list_optin NOT NULL DEFAULT 'single',
    tags            VARCHAR(100)[],

    created_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

DROP TABLE IF EXISTS subscriber_lists CASCADE;
CREATE TABLE subscriber_lists (
    subscriber_id      INTEGER REFERENCES subscribers(id) ON DELETE CASCADE ON UPDATE CASCADE,
    list_id            INTEGER NULL REFERENCES lists(id) ON DELETE CASCADE ON UPDATE CASCADE,
    status             subscription_status NOT NULL DEFAULT 'unconfirmed',

    created_at         TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at         TIMESTAMP WITH TIME ZONE DEFAULT NOW(),

    PRIMARY KEY(subscriber_id, list_id)
);
DROP INDEX IF EXISTS idx_sub_lists_sub_id; CREATE INDEX idx_sub_lists_sub_id ON subscriber_lists(subscriber_id);
DROP INDEX IF EXISTS idx_sub_lists_list_id; CREATE INDEX idx_sub_lists_list_id ON subscriber_lists(list_id);
DROP INDEX IF EXISTS idx_sub_lists_status; CREATE INDEX idx_sub_lists_status ON subscriber_lists(status);

-- templates
DROP TABLE IF EXISTS templates CASCADE;
CREATE TABLE templates (
    id              SERIAL PRIMARY KEY,
    name            TEXT NOT NULL,
    body            TEXT NOT NULL,
    is_default      BOOLEAN NOT NULL DEFAULT false,

    created_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
CREATE UNIQUE INDEX ON templates (is_default) WHERE is_default = true;


-- campaigns
DROP TABLE IF EXISTS campaigns CASCADE;
CREATE TABLE campaigns (
    id               SERIAL PRIMARY KEY,
    uuid uuid        NOT NULL UNIQUE,
    name             TEXT NOT NULL,
    subject          TEXT NOT NULL,
    from_email       TEXT NOT NULL,
    body             TEXT NOT NULL,
    altbody          TEXT NULL,
    content_type     content_type NOT NULL DEFAULT 'richtext',
    send_at          TIMESTAMP WITH TIME ZONE,
    status           campaign_status NOT NULL DEFAULT 'draft',
    tags             VARCHAR(100)[],

    -- The subscription statuses of subscribers to which a campaign will be sent.
    -- For opt-in campaigns, this will be 'unsubscribed'.
    type campaign_type DEFAULT 'regular',

    -- The ID of the messenger backend used to send this campaign. 
    messenger        TEXT NOT NULL,
    template_id      INTEGER REFERENCES templates(id) ON DELETE SET DEFAULT DEFAULT 1,

    -- Progress and stats.
    to_send            INT NOT NULL DEFAULT 0,
    sent               INT NOT NULL DEFAULT 0,
    max_subscriber_id  INT NOT NULL DEFAULT 0,
    last_subscriber_id INT NOT NULL DEFAULT 0,

    started_at       TIMESTAMP WITH TIME ZONE,
    created_at       TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
    updated_at       TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

DROP TABLE IF EXISTS campaign_lists CASCADE;
CREATE TABLE campaign_lists (
    campaign_id  INTEGER NOT NULL REFERENCES campaigns(id) ON DELETE CASCADE ON UPDATE CASCADE,

    -- Lists may be deleted, so list_id is nullable
    -- and a copy of the original list name is maintained here.
    list_id      INTEGER NULL REFERENCES lists(id) ON DELETE SET NULL ON UPDATE CASCADE,
    list_name    TEXT NOT NULL DEFAULT ''
);
CREATE UNIQUE INDEX ON campaign_lists (campaign_id, list_id);
DROP INDEX IF EXISTS idx_camp_lists_camp_id; CREATE INDEX idx_camp_lists_camp_id ON campaign_lists(campaign_id);
DROP INDEX IF EXISTS idx_camp_lists_list_id; CREATE INDEX idx_camp_lists_list_id ON campaign_lists(list_id);

DROP TABLE IF EXISTS campaign_views CASCADE;
CREATE TABLE campaign_views (
    campaign_id      INTEGER NOT NULL REFERENCES campaigns(id) ON DELETE CASCADE ON UPDATE CASCADE,

    -- Subscribers may be deleted, but the view counts should remain.
    subscriber_id    INTEGER NULL REFERENCES subscribers(id) ON DELETE SET NULL ON UPDATE CASCADE,
    created_at       TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
DROP INDEX IF EXISTS idx_views_camp_id; CREATE INDEX idx_views_camp_id ON campaign_views(campaign_id);
DROP INDEX IF EXISTS idx_views_subscriber_id; CREATE INDEX idx_views_subscriber_id ON campaign_views(subscriber_id);

-- media
DROP TABLE IF EXISTS media CASCADE;
CREATE TABLE media (
    id               SERIAL PRIMARY KEY,
    uuid uuid        NOT NULL UNIQUE,
    provider         TEXT NOT NULL DEFAULT '',
    filename         TEXT NOT NULL,
    thumb            TEXT NOT NULL,
    created_at       TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

-- links
DROP TABLE IF EXISTS links CASCADE;
CREATE TABLE links (
    id               SERIAL PRIMARY KEY,
    uuid uuid        NOT NULL UNIQUE,
    url              TEXT NOT NULL UNIQUE,
    created_at       TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

DROP TABLE IF EXISTS link_clicks CASCADE;
CREATE TABLE link_clicks (
    campaign_id      INTEGER NULL REFERENCES campaigns(id) ON DELETE CASCADE ON UPDATE CASCADE,
    link_id          INTEGER NOT NULL REFERENCES links(id) ON DELETE CASCADE ON UPDATE CASCADE,

    -- Subscribers may be deleted, but the link counts should remain.
    subscriber_id    INTEGER NULL REFERENCES subscribers(id) ON DELETE SET NULL ON UPDATE CASCADE,
    created_at       TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
DROP INDEX IF EXISTS idx_clicks_camp_id; CREATE INDEX idx_clicks_camp_id ON link_clicks(campaign_id);
DROP INDEX IF EXISTS idx_clicks_link_id; CREATE INDEX idx_clicks_link_id ON link_clicks(link_id);
DROP INDEX IF EXISTS idx_clicks_sub_id; CREATE INDEX idx_clicks_sub_id ON link_clicks(subscriber_id);

-- settings
DROP TABLE IF EXISTS settings CASCADE;
CREATE TABLE settings (
    key             TEXT NOT NULL UNIQUE,
    value           JSONB NOT NULL DEFAULT '{}',
    updated_at      TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);
DROP INDEX IF EXISTS idx_settings_key; CREATE INDEX idx_settings_key ON settings(key);
INSERT INTO settings (key, value) VALUES
    ('app.root_url', '"http://localhost:9000"'),
    ('app.favicon_url', '""'),
    ('app.from_email', '"listmonk <noreply@listmonk.yoursite.com>"'),
    ('app.logo_url', '"http://localhost:9000/public/static/logo.png"'),
    ('app.concurrency', '10'),
    ('app.message_rate', '10'),
    ('app.batch_size', '1000'),
    ('app.max_send_errors', '1000'),
    ('app.message_sliding_window', 'false'),
    ('app.message_sliding_window_duration', '"1h"'),
    ('app.message_sliding_window_rate', '10000'),
    ('app.enable_public_subscription_page', 'true'),
    ('app.check_updates', 'true'),
    ('app.notify_emails', '["admin1@mysite.com", "admin2@mysite.com"]'),
    ('app.lang', '"en"'),
    ('privacy.individual_tracking', 'false'),
    ('privacy.unsubscribe_header', 'true'),
    ('privacy.allow_blocklist', 'true'),
    ('privacy.allow_export', 'true'),
    ('privacy.allow_wipe', 'true'),
    ('privacy.exportable', '["profile", "subscriptions", "campaign_views", "link_clicks"]'),
    ('upload.provider', '"filesystem"'),
    ('upload.filesystem.upload_path', '"uploads"'),
    ('upload.filesystem.upload_uri', '"/uploads"'),
    ('upload.s3.aws_access_key_id', '""'),
    ('upload.s3.aws_secret_access_key', '""'),
    ('upload.s3.aws_default_region', '"ap-south-b"'),
    ('upload.s3.bucket', '""'),
    ('upload.s3.bucket_domain', '""'),
    ('upload.s3.bucket_path', '"/"'),
    ('upload.s3.bucket_type', '"public"'),
    ('upload.s3.expiry', '"14d"'),
    ('smtp',
        '[{"enabled":true, "host":"smtp.yoursite.com","port":25,"auth_protocol":"cram","username":"username","password":"password","hello_hostname":"","max_conns":10,"idle_timeout":"15s","wait_timeout":"5s","max_msg_retries":2,"tls_enabled":true,"tls_skip_verify":false,"email_headers":[]},
          {"enabled":false, "host":"smtp2.yoursite.com","port":587,"auth_protocol":"plain","username":"username","password":"password","hello_hostname":"","max_conns":10,"idle_timeout":"15s","wait_timeout":"5s","max_msg_retries":2,"tls_enabled":false,"tls_skip_verify":false,"email_headers":[]}]'),
    ('messengers', '[]');