-- Star Systems Database Schema — server/data/systems.db
-- Source of truth for all structured star system data.
-- Authored via tooling pipeline; wiki pages are generated views.
-- Shipped with the game — read-only from the server's perspective.
--
-- Rebuild: tooling/process-wiki-system-changes --rebuild-db

PRAGMA journal_mode=WAL;
PRAGMA foreign_keys=ON;

-- Core identity, physical character, political character
CREATE TABLE IF NOT EXISTS star_systems (
    system_id TEXT PRIMARY KEY,  -- GJ catalog number (e.g., "GJ 244A")
    proper_name TEXT,
    system_name TEXT,
    star_type TEXT,
    spectral_class TEXT,
    dist_ly REAL,
    geographic_sector TEXT,
    geographic_band TEXT,
    political_zone TEXT,

    -- Physical character
    habitable_planet_count INTEGER,
    inhabited_planet_count INTEGER,
    asteroid_belt INTEGER,   -- boolean 0/1
    gas_giant INTEGER,       -- boolean 0/1
    habitability_profile TEXT,

    -- Political character
    earth_alignment TEXT,
    earth_proximity TEXT,
    earth_tension TEXT,

    -- Content notes
    stability_index INTEGER,
    system_volatility TEXT,
    cultural_corridor TEXT,
    generation_priority TEXT,

    updated_at TEXT DEFAULT (datetime('now'))
);

-- Gate infrastructure — queried independently for pathfinding/topology
CREATE TABLE IF NOT EXISTS system_gates (
    system_id TEXT PRIMARY KEY REFERENCES star_systems(system_id),
    horizon_station INTEGER,  -- boolean 0/1
    aperture_count INTEGER,
    gate_connections INTEGER,
    gate_topology TEXT,
    hop_distance_from_gateway INTEGER,
    span_gate_network TEXT
);

-- Settlement history
CREATE TABLE IF NOT EXISTS system_history (
    system_id TEXT PRIMARY KEY REFERENCES star_systems(system_id),
    settlement_wave TEXT,
    founding_motivation TEXT,
    founding_culture_primary TEXT,
    founding_culture_secondary TEXT,
    cultural_persistence TEXT,
    religious_status TEXT,
    religious_generation_count INTEGER
);

-- Historical events — proper 1:N child table
CREATE TABLE IF NOT EXISTS historical_events (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    system_id TEXT NOT NULL REFERENCES star_systems(system_id),
    event_type TEXT NOT NULL,
    age_years INTEGER,
    sort_order INTEGER NOT NULL DEFAULT 0  -- 0 = most recent
);

-- Economic life
CREATE TABLE IF NOT EXISTS system_economy (
    system_id TEXT PRIMARY KEY REFERENCES star_systems(system_id),
    economic_tier INTEGER,
    population INTEGER,
    economic_base_primary TEXT,
    economic_base_secondary TEXT,
    distribution_index TEXT,
    imprint_access TEXT
);

-- Faction presence
CREATE TABLE IF NOT EXISTS system_factions (
    system_id TEXT PRIMARY KEY REFERENCES star_systems(system_id),
    governance_type TEXT,
    dominant_faction TEXT,
    primary_fault_line TEXT,
    secondary_fault_line TEXT,
    assembly_presence TEXT,
    commission_presence TEXT,
    syndic_presence TEXT,
    syndic_type TEXT,
    separatist_presence TEXT,
    separatist_type TEXT,
    institute_presence TEXT,
    guardians_presence TEXT
);

-- Cultural voice
CREATE TABLE IF NOT EXISTS system_culture (
    system_id TEXT PRIMARY KEY REFERENCES star_systems(system_id),
    cultural_register TEXT,
    cultural_register_secondary TEXT,
    ambient_anxiety TEXT,
    local_pride TEXT,
    atmospheric_tone TEXT,
    atmospheric_tone_secondary TEXT,
    active_situation TEXT,
    silence_threshold TEXT,
    primary_archetype TEXT,
    secondary_archetype TEXT,
    narrative_notable INTEGER  -- boolean 0/1
);

-- Authored prose (supply_dependency, faction_notes, silence_topic,
-- narrative_hook, calibration_note) lives in wiki markdown files only.
-- No DB mirror — read the file if you need the text.

-- Celestial bodies — planets, moons, gas giants, asteroid belts, oort clouds
-- Naming convention:
--   GJ-{n}b/c/d...    — planets (innermost first)
--   GJ-{n}Ab/c/d...   — planets orbiting primary (binary systems)
--   GJ-{n}d-1          — first moon of third planet
--   GJ-{n}-oort        — oort cloud region
--   GJ-{n}-belt        — asteroid belt
CREATE TABLE IF NOT EXISTS bodies (
    body_id TEXT PRIMARY KEY,
    system_id TEXT NOT NULL REFERENCES star_systems(system_id),
    parent_body_id TEXT REFERENCES bodies(body_id),  -- NULL for planets; parent planet for moons

    -- Classification
    body_type TEXT NOT NULL,            -- planet, moon, gas_giant, asteroid_belt, oort_cloud
    orbit_index INTEGER,               -- innermost = 1 (planets around star, moons around planet)
    proper_name TEXT,                   -- "Xin Chengdu", NULL for unnamed

    -- Physical
    mass_class TEXT,                    -- terrestrial, super_earth, ice_giant, gas_giant, dwarf
    atmosphere TEXT,                    -- breathable, thin, toxic, none, dense
    surface_gravity REAL,              -- in g (Earth = 1.0), NULL for gas giants
    orbital_period_days REAL,          -- orbital period in Earth days, NULL for oort/belt
    rotation_period_hours REAL,        -- rotation period in Earth hours (Earth = 24), NULL for tidally locked/gas giants
    planet_class TEXT,                 -- temperate, arid, frozen, oceanic, volcanic, barren, etc.
    hydrosphere TEXT,                  -- ocean, ice, rivers, none, subsurface

    -- Settlement
    inhabited INTEGER NOT NULL DEFAULT 0,
    population INTEGER DEFAULT 0,
    economic_role TEXT,                -- manufacturing, agricultural, extraction, research, transit
    founding_age_years INTEGER,
    settlement_pattern TEXT,           -- urban_concentrated, dispersed_rural, orbital_only, domed, cave

    -- Cultural (inherited from system, can override)
    cultural_corridor TEXT,            -- override system corridor if different
    industrial_corridor TEXT,          -- MVG, Gate_Corp, DSMC, Prometheus, Agricultural_Syndic

    -- Rendering
    terrain_reference TEXT,            -- heightmap path when authored, NULL otherwise
    screenshot_path TEXT,              -- planetary shader screenshot path

    updated_at TEXT DEFAULT (datetime('now'))
);

-- Stations and orbital facilities
-- Naming: GJ-{n}b-S1 (first station orbiting planet b), GJ-{n}-oort-S1 (horizon station)
CREATE TABLE IF NOT EXISTS stations (
    station_id TEXT PRIMARY KEY,
    system_id TEXT NOT NULL REFERENCES star_systems(system_id),
    orbits_body_id TEXT REFERENCES bodies(body_id),

    -- Classification
    station_type TEXT NOT NULL,         -- horizon, commercial, military, research, industrial, agricultural, transit
    proper_name TEXT,                   -- "Chengdu Orbital", "Horizon Station"

    -- Settlement
    population INTEGER DEFAULT 0,
    economic_role TEXT,
    governance_type TEXT,              -- can differ from system governance

    -- Infrastructure
    docking_class TEXT,                -- major, standard, restricted, none
    has_gate_infrastructure INTEGER DEFAULT 0,
    district_count INTEGER DEFAULT 1,

    updated_at TEXT DEFAULT (datetime('now'))
);

-- Corporations, combines, and major economic entities
-- Source: wiki/corporations/ pages (canonical)
CREATE TABLE IF NOT EXISTS corporations (
    corp_id TEXT PRIMARY KEY,           -- slug from wiki (e.g., "gate-corporation", "vethara")
    proper_name TEXT NOT NULL,          -- display name
    corp_type TEXT NOT NULL,            -- corporation, combine, syndic, institution, independent
    scope TEXT,                         -- reach-wide, sector, system, local
    headquarters_system TEXT REFERENCES star_systems(system_id),
    headquarters_body TEXT,             -- body_id or station_id
    specialization TEXT,                -- primary product/service
    parent_corp TEXT REFERENCES corporations(corp_id),
    notes TEXT,
    updated_at TEXT DEFAULT (datetime('now'))
);

-- Indexes
-- astronomical_id removed: system_id IS the GJ catalog number
CREATE INDEX IF NOT EXISTS idx_star_systems_sector ON star_systems(geographic_sector);
CREATE INDEX IF NOT EXISTS idx_star_systems_wave ON system_history(settlement_wave);
CREATE INDEX IF NOT EXISTS idx_star_systems_topology ON system_gates(gate_topology);
CREATE INDEX IF NOT EXISTS idx_star_systems_star_type ON star_systems(star_type);
CREATE INDEX IF NOT EXISTS idx_star_systems_volatility ON star_systems(system_volatility);
CREATE INDEX IF NOT EXISTS idx_historical_events_system ON historical_events(system_id);
CREATE INDEX IF NOT EXISTS idx_system_factions_dominant ON system_factions(dominant_faction);
CREATE INDEX IF NOT EXISTS idx_system_economy_tier ON system_economy(economic_tier);
CREATE INDEX IF NOT EXISTS idx_system_culture_archetype ON system_culture(primary_archetype);
CREATE INDEX IF NOT EXISTS idx_bodies_system ON bodies(system_id);
CREATE INDEX IF NOT EXISTS idx_bodies_parent ON bodies(parent_body_id);
CREATE INDEX IF NOT EXISTS idx_bodies_type ON bodies(body_type);
CREATE INDEX IF NOT EXISTS idx_bodies_inhabited ON bodies(inhabited);
CREATE INDEX IF NOT EXISTS idx_stations_system ON stations(system_id);
CREATE INDEX IF NOT EXISTS idx_stations_orbits ON stations(orbits_body_id);
CREATE INDEX IF NOT EXISTS idx_stations_type ON stations(station_type);
CREATE INDEX IF NOT EXISTS idx_corps_system ON corporations(headquarters_system);
CREATE INDEX IF NOT EXISTS idx_corps_type ON corporations(corp_type);