-- Slice 3 — team templates.
--
-- Team templates are the canonical rosters + tool bundles used to
-- materialize concrete `teams` rows. They ship as TOML recipes on
-- disk (see templates/teams/*.toml) and are upserted into these
-- tables at server boot.
--
-- Later slices layer more on:
--   - Slice 3.5a: `skills` + `template_role_skills` (m2m join)
--   - Slice 3.5d: `agent_template_link` for level-up lineage
--
-- Discriminators kept TEXT so new templates ship as PRs without
-- schema migrations.

CREATE TABLE team_templates (
    -- Deterministic id per template kind so seeded rows are stable
    -- across boots. We use uuid5 of a namespace + the template `key`
    -- computed in the loader; recording the key here lets us look
    -- them up by name from the API.
    id            UUID PRIMARY KEY,
    -- Slug used in URLs + TOML filenames (e.g. "rust_sdlc").
    key           TEXT NOT NULL UNIQUE,
    name          TEXT NOT NULL,
    stack         TEXT[] NOT NULL DEFAULT '{}',
    default_topology TEXT NOT NULL,
    risk_profile  TEXT NOT NULL,
    mcp_bundles   TEXT[] NOT NULL DEFAULT '{}',
    version       INT  NOT NULL DEFAULT 1,
    description   TEXT,
    -- Free-form for template-specific knobs (default cargo features,
    -- lint policy, etc.). Merged into missions.config when a mission
    -- is materialized from this template.
    config        JSONB NOT NULL DEFAULT '{}'::jsonb,
    -- 'builtin' rows are re-upserted from disk at every boot. Rows
    -- with source='user' are workspace-authored and never overwritten.
    source        TEXT NOT NULL DEFAULT 'builtin',
    workspace_id  UUID,       -- NULL for builtins; set for user rows
    created_at    TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at    TIMESTAMPTZ NOT NULL DEFAULT now()
);
CREATE INDEX team_templates_workspace_idx
    ON team_templates (workspace_id) WHERE workspace_id IS NOT NULL;
CREATE INDEX team_templates_source_idx
    ON team_templates (source);

CREATE TABLE template_roles (
    template_id   UUID NOT NULL REFERENCES team_templates(id) ON DELETE CASCADE,
    -- role slot within the template (e.g. "planner", "coder"). Unique
    -- per template — a template can't have two "coder" slots.
    slot          TEXT NOT NULL,
    order_idx     INT  NOT NULL,
    -- The system prompt for this role. Loaded from disk for builtins;
    -- editable for user templates.
    system_prompt TEXT NOT NULL,
    -- Skills attached by default when the template mints an agent for
    -- this slot. Stored as a name array; Slice 3.5a introduces the
    -- typed join table + real skills catalog.
    skills        TEXT[] NOT NULL DEFAULT '{}',
    -- Brain seed content ingested into a fresh agent's .brain on
    -- creation (Slice 3.5d actually wires the ingestion; this column
    -- stores the seed markdown from the template).
    brain_seed    TEXT,
    PRIMARY KEY (template_id, slot)
);
CREATE INDEX template_roles_order_idx
    ON template_roles (template_id, order_idx);

-- Track which template a team was minted from, so level-up (Slice 8.5)
-- can diff learned knowledge back into template PR proposals.
ALTER TABLE teams
    ADD COLUMN template_id      UUID REFERENCES team_templates(id) ON DELETE SET NULL,
    ADD COLUMN template_version INT;
CREATE INDEX teams_template_idx
    ON teams (template_id, template_version) WHERE template_id IS NOT NULL;