-- +goose Up
-- +goose StatementBegin
CREATE TABLE IF NOT EXISTS public.request_settings (
    id boolean PRIMARY KEY DEFAULT true,
    requests_enabled boolean NOT NULL DEFAULT false,
    global_max_requests integer NOT NULL DEFAULT 5,
    global_window_days integer NOT NULL DEFAULT 7,
    global_auto_approval_enabled boolean NOT NULL DEFAULT false,
    created_at timestamp with time zone DEFAULT now() NOT NULL,
    updated_at timestamp with time zone DEFAULT now() NOT NULL,
    CONSTRAINT request_settings_singleton CHECK (id),
    CONSTRAINT request_settings_global_max_nonnegative CHECK (global_max_requests >= 0),
    CONSTRAINT request_settings_global_window_positive CHECK (global_window_days > 0)
);

INSERT INTO public.request_settings (id)
VALUES (true)
ON CONFLICT (id) DO NOTHING;

CREATE TABLE IF NOT EXISTS public.request_user_limits (
    user_id integer PRIMARY KEY REFERENCES public.users(id) ON DELETE CASCADE,
    limit_mode text NOT NULL DEFAULT 'inherit',
    max_requests integer,
    window_days integer,
    approval_mode text NOT NULL DEFAULT 'inherit',
    updated_at timestamp with time zone DEFAULT now() NOT NULL,
    CONSTRAINT request_user_limits_limit_mode_check
        CHECK (limit_mode IN ('inherit', 'custom', 'unlimited', 'blocked')),
    CONSTRAINT request_user_limits_approval_mode_check
        CHECK (approval_mode IN ('inherit', 'manual', 'auto', 'blocked')),
    CONSTRAINT request_user_limits_max_nonnegative
        CHECK (max_requests IS NULL OR max_requests >= 0),
    CONSTRAINT request_user_limits_window_positive
        CHECK (window_days IS NULL OR window_days > 0)
);

CREATE TABLE IF NOT EXISTS public.request_integrations (
    kind text PRIMARY KEY,
    enabled boolean NOT NULL DEFAULT false,
    base_url text NOT NULL DEFAULT '',
    api_key_ref text NOT NULL DEFAULT '',
    root_folder text NOT NULL DEFAULT '',
    quality_profile_id integer,
    tags integer[] NOT NULL DEFAULT '{}',
    options jsonb NOT NULL DEFAULT '{}'::jsonb,
    last_check_at timestamp with time zone,
    last_check_status text NOT NULL DEFAULT '',
    last_check_error text NOT NULL DEFAULT '',
    created_at timestamp with time zone DEFAULT now() NOT NULL,
    updated_at timestamp with time zone DEFAULT now() NOT NULL,
    CONSTRAINT request_integrations_kind_check CHECK (kind IN ('radarr', 'sonarr'))
);

CREATE TABLE IF NOT EXISTS public.media_requests (
    id text PRIMARY KEY,
    provider text NOT NULL DEFAULT 'tmdb',
    media_type text NOT NULL,
    tmdb_id integer NOT NULL,
    tvdb_id integer,
    imdb_id text NOT NULL DEFAULT '',
    title text NOT NULL,
    year integer,
    overview text NOT NULL DEFAULT '',
    poster_path text NOT NULL DEFAULT '',
    backdrop_path text NOT NULL DEFAULT '',
    status text NOT NULL,
    outcome text NOT NULL DEFAULT 'active',
    requested_by_user_id integer NOT NULL REFERENCES public.users(id) ON DELETE CASCADE,
    requested_by_profile_id text NOT NULL DEFAULT '',
    integration_kind text NOT NULL DEFAULT '',
    external_id text NOT NULL DEFAULT '',
    external_status text NOT NULL DEFAULT '',
    last_error text NOT NULL DEFAULT '',
    created_at timestamp with time zone DEFAULT now() NOT NULL,
    updated_at timestamp with time zone DEFAULT now() NOT NULL,
    approved_at timestamp with time zone,
    completed_at timestamp with time zone,
    CONSTRAINT media_requests_provider_check CHECK (provider IN ('tmdb')),
    CONSTRAINT media_requests_media_type_check CHECK (media_type IN ('movie', 'series')),
    CONSTRAINT media_requests_status_check
        CHECK (status IN ('pending', 'approved', 'queued', 'downloading', 'completed')),
    CONSTRAINT media_requests_outcome_check
        CHECK (outcome IN ('active', 'declined', 'cancelled', 'failed')),
    CONSTRAINT media_requests_tmdb_positive CHECK (tmdb_id > 0)
);

CREATE UNIQUE INDEX IF NOT EXISTS idx_media_requests_active_tmdb
    ON public.media_requests (media_type, provider, tmdb_id)
    WHERE outcome = 'active' AND status <> 'completed';

CREATE INDEX IF NOT EXISTS idx_media_requests_user_created
    ON public.media_requests (requested_by_user_id, created_at DESC);

CREATE INDEX IF NOT EXISTS idx_media_requests_profile_created
    ON public.media_requests (requested_by_profile_id, created_at DESC);

CREATE INDEX IF NOT EXISTS idx_media_requests_status_created
    ON public.media_requests (status, created_at DESC)
    WHERE outcome = 'active';

CREATE INDEX IF NOT EXISTS idx_media_requests_outcome_created
    ON public.media_requests (outcome, created_at DESC);

CREATE TABLE IF NOT EXISTS public.media_request_events (
    id bigint GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    request_id text NOT NULL REFERENCES public.media_requests(id) ON DELETE CASCADE,
    event_type text NOT NULL,
    actor_user_id integer REFERENCES public.users(id) ON DELETE SET NULL,
    actor_profile_id text NOT NULL DEFAULT '',
    message text NOT NULL DEFAULT '',
    metadata jsonb NOT NULL DEFAULT '{}'::jsonb,
    created_at timestamp with time zone DEFAULT now() NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_media_request_events_request_created
    ON public.media_request_events (request_id, created_at DESC);
-- +goose StatementEnd

-- +goose Down
-- +goose StatementBegin
DROP TABLE IF EXISTS public.media_request_events;
DROP INDEX IF EXISTS public.idx_media_requests_outcome_created;
DROP INDEX IF EXISTS public.idx_media_requests_status_created;
DROP INDEX IF EXISTS public.idx_media_requests_profile_created;
DROP INDEX IF EXISTS public.idx_media_requests_user_created;
DROP INDEX IF EXISTS public.idx_media_requests_active_tmdb;
DROP TABLE IF EXISTS public.media_requests;
DROP TABLE IF EXISTS public.request_integrations;
DROP TABLE IF EXISTS public.request_user_limits;
DROP TABLE IF EXISTS public.request_settings;
-- +goose StatementEnd