BEGIN;

-- 1. Insert or Update Sirius System
WITH new_system AS (
    INSERT INTO "public"."star_systems" (
        "name", 
        "name_zh", 
        "host_star_name", 
        "distance_pc", 
        "distance_ly", 
        "ra", 
        "dec", 
        "position_x", 
        "position_y", 
        "position_z", 
        "spectral_type", 
        "magnitude", 
        "color", 
        "description", 
        "planet_count"
    ) VALUES (
        'Sirius', 
        '天狼星', 
        'Sirius A', 
        2.64, 
        8.6, 
        101.287, 
        -16.716, 
        -0.495, 
        2.479, 
        -0.759, 
        'A1V', 
        -1.46, 
        '#FFFFFF', 
        '天狼星（Sirius，α CMa）是夜空中最亮的恒星，距离太阳系约 8.6 光年。它是一个联星系统，包含一颗蓝矮星（天狼星 A）和一颗白矮星（天狼星 B）。', 
        0
    )
    ON CONFLICT (name) DO UPDATE SET
        distance_pc = EXCLUDED.distance_pc,
        distance_ly = EXCLUDED.distance_ly,
        ra = EXCLUDED.ra,
        dec = EXCLUDED.dec,
        position_x = EXCLUDED.position_x,
        position_y = EXCLUDED.position_y,
        position_z = EXCLUDED.position_z,
        spectral_type = EXCLUDED.spectral_type,
        magnitude = EXCLUDED.magnitude,
        color = EXCLUDED.color,
        description = EXCLUDED.description
    RETURNING id
)
-- 2. Insert Celestial Bodies (Sirius A and Sirius B) linked to the system
INSERT INTO "public"."celestial_bodies" (
    "id", 
    "name", 
    "name_zh", 
    "type", 
    "system_id", 
    "description", 
    "extra_data",
    "is_active"
) 
SELECT 
    'sirius_a', 
    'Sirius A', 
    '天狼星 A', 
    'star', 
    id, 
    '天狼星 A 是天狼星系统的主星，是一颗光谱型 A1V 的蓝矮星，其质量约为太阳的 2 倍，光度约为太阳的 25 倍。', 
    '{"spectral_type": "A1V", "radius_solar": 1.71, "mass_solar": 2.06, "temperature_k": 9940}'::jsonb,
    true
FROM new_system
UNION ALL
SELECT 
    'sirius_b', 
    'Sirius B', 
    '天狼星 B', 
    'star', 
    id, 
    '天狼星 B 是天狼星 A 的伴星，是一颗微弱的白矮星。它是人类发现的第一颗白矮星，质量与太阳相当，但体积仅与地球相当。', 
    '{"spectral_type": "DA2", "radius_solar": 0.0084, "mass_solar": 1.02, "temperature_k": 25200}'::jsonb,
    true
FROM new_system
ON CONFLICT (id) DO UPDATE SET
    system_id = EXCLUDED.system_id,
    name = EXCLUDED.name,
    name_zh = EXCLUDED.name_zh,
    type = EXCLUDED.type,
    description = EXCLUDED.description,
    extra_data = EXCLUDED.extra_data,
    is_active = EXCLUDED.is_active;

COMMIT;