-- Model Presets: named wrappers around base models with bundled config.
-- Admins create org-wide presets, users create personal ones.

CREATE TABLE IF NOT EXISTS model_presets (
    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name            VARCHAR(200) NOT NULL,
    description     TEXT DEFAULT '',
    base_model_id   TEXT NOT NULL,               -- e.g. "gpt-4o", "claude-sonnet-4-20250514"
    api_config_id   UUID REFERENCES api_configs(id) ON DELETE CASCADE,
    system_prompt   TEXT DEFAULT '',
    temperature     REAL,                        -- NULL = use model default
    max_tokens      INTEGER,                     -- NULL = use model default
    tools_enabled   JSONB DEFAULT '[]'::jsonb,   -- reserved for future tool framework
    scope           VARCHAR(20) NOT NULL DEFAULT 'personal'
                    CHECK (scope IN ('global', 'team', 'personal')),
    team_id         UUID,                        -- nullable; for future team scoping
    created_by      UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    is_shared       BOOLEAN DEFAULT false,       -- personal presets visible to others
    is_active       BOOLEAN DEFAULT true,
    icon            VARCHAR(10) DEFAULT '',       -- emoji or short icon code
    created_at      TIMESTAMPTZ DEFAULT NOW(),
    updated_at      TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_model_presets_scope ON model_presets(scope);
CREATE INDEX IF NOT EXISTS idx_model_presets_created_by ON model_presets(created_by);
CREATE INDEX IF NOT EXISTS idx_model_presets_team ON model_presets(team_id) WHERE team_id IS NOT NULL;

COMMENT ON TABLE model_presets IS 'Named model configurations: org-wide or personal wrappers around base models';
COMMENT ON COLUMN model_presets.base_model_id IS 'The underlying model_id (matches model_configs.model_id)';
COMMENT ON COLUMN model_presets.api_config_id IS 'Which provider config to use (NULL = resolve at completion time)';
COMMENT ON COLUMN model_presets.scope IS 'global = admin-created for all users; team = team-scoped; personal = user-created';
COMMENT ON COLUMN model_presets.tools_enabled IS 'JSON array of tool names enabled for this preset (future use)';