--------------- PRESETS ---------------

-- TABLE --

CREATE TABLE IF NOT EXISTS presets (
    -- ID
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),

    -- RELATIONSHIPS
    user_id UUID NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,

    -- OPTIONAL RELATIONSHIPS
    folder_id UUID REFERENCES folders(id) ON DELETE SET NULL,

    -- METADATA
    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMPTZ,

    -- SHARING
    sharing TEXT NOT NULL DEFAULT 'private',

    -- REQUIRED
    context_length INT NOT NULL,
    description TEXT NOT NULL CHECK (char_length(description) <= 500),
    embeddings_provider TEXT NOT NULL CHECK (char_length(embeddings_provider) <= 1000),
    include_profile_context BOOLEAN NOT NULL,
    include_workspace_instructions BOOLEAN NOT NULL,
    model TEXT NOT NULL CHECK (char_length(model) <= 1000),
    name TEXT NOT NULL CHECK (char_length(name) <= 100),
    prompt TEXT NOT NULL CHECK (char_length(prompt) <= 100000),
    temperature REAL NOT NULL
);

-- INDEXES --

CREATE INDEX presets_user_id_idx ON presets(user_id);

-- RLS --

ALTER TABLE presets ENABLE ROW LEVEL SECURITY;

CREATE POLICY "Allow full access to own presets"
    ON presets
    USING (user_id = auth.uid())
    WITH CHECK (user_id = auth.uid());

CREATE POLICY "Allow view access to non-private presets"
    ON presets
    FOR SELECT
    USING (sharing <> 'private');

-- TRIGGERS --

CREATE TRIGGER update_presets_updated_at
BEFORE UPDATE ON presets 
FOR EACH ROW 
EXECUTE PROCEDURE update_updated_at_column();

--------------- PRESET WORKSPACES ---------------

-- TABLE --

CREATE TABLE IF NOT EXISTS preset_workspaces (
    -- REQUIRED RELATIONSHIPS
    user_id UUID NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
    preset_id UUID NOT NULL REFERENCES presets(id) ON DELETE CASCADE,
    workspace_id UUID NOT NULL REFERENCES workspaces(id) ON DELETE CASCADE,

    PRIMARY KEY(preset_id, workspace_id),

    -- METADATA
    created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMPTZ
);

-- INDEXES --

CREATE INDEX preset_workspaces_user_id_idx ON preset_workspaces(user_id);
CREATE INDEX preset_workspaces_preset_id_idx ON preset_workspaces(preset_id);
CREATE INDEX preset_workspaces_workspace_id_idx ON preset_workspaces(workspace_id);

-- RLS --

ALTER TABLE preset_workspaces ENABLE ROW LEVEL SECURITY;

CREATE POLICY "Allow full access to own preset_workspaces"
    ON preset_workspaces
    USING (user_id = auth.uid())
    WITH CHECK (user_id = auth.uid());

-- TRIGGERS --

CREATE TRIGGER update_preset_workspaces_updated_at
BEFORE UPDATE ON preset_workspaces 
FOR EACH ROW 
EXECUTE PROCEDURE update_updated_at_column();