-- ============================================================================
-- BreakPilot ComplAI — Finanzplan Database Schema
-- Mirrors Excel: "Breakpilot ComplAI Finanzplan.xlsm" (10 Reiter)
-- Monthly granularity: Jan 2026 – Dec 2030 (60 months)
-- Values stored as JSONB: {"m1": ..., "m2": ..., "m60": ...}
-- ============================================================================

-- Scenarios (extends existing pitch_fm_scenarios)
CREATE TABLE IF NOT EXISTS fp_scenarios (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  name TEXT NOT NULL DEFAULT 'Base Case',
  description TEXT,
  is_default BOOLEAN DEFAULT false,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- Insert default scenario
INSERT INTO fp_scenarios (name, description, is_default)
VALUES ('Base Case', 'Basisdaten aus Excel-Import', true)
ON CONFLICT DO NOTHING;

-- ============================================================================
-- KUNDEN (6 Segmente × ~20 Zeilen = ~120 Datenzeilen)
-- Each segment has: base customer count (editable) + module percentages
-- Formulas: module_count = ROUNDDOWN(base_count * percentage)
-- ============================================================================
CREATE TABLE fp_kunden (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  segment_name TEXT NOT NULL,        -- 'Care (Privat)', 'Horse (Händler)', etc.
  segment_index INT NOT NULL,        -- 1-6
  row_label TEXT NOT NULL,           -- 'Modul 1', 'Modul 2', ...
  row_index INT NOT NULL,            -- position within segment
  percentage NUMERIC(5,3),           -- multiplier (e.g. 0.9, 0.25)
  formula_type TEXT,                 -- 'literal', 'roundup_pct', 'rounddown_pct', 'cumulative', null
  is_editable BOOLEAN DEFAULT false, -- true for base inputs (Modul 1 per segment)
  values JSONB NOT NULL DEFAULT '{}', -- {m1: 0, m2: 0, ... m60: 0}
  excel_row INT,                     -- original Excel row number
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- Summary rows (aggregated across all 6 segments)
CREATE TABLE fp_kunden_summary (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  row_label TEXT NOT NULL,           -- 'Modul 1', 'Modul 2', ...
  row_index INT NOT NULL,
  values JSONB NOT NULL DEFAULT '{}', -- computed: sum of 6 segments
  excel_row INT,
  sort_order INT NOT NULL
);

-- ============================================================================
-- UMSATZERLOESE (Revenue = Quantity × Price)
-- Section 1 (rows 3-23): Computed revenue per module
-- Section 2 (rows 27-46): Quantity (from Kunden)
-- Section 3 (rows 49-73): Prices (editable VK excl. MwSt.)
-- ============================================================================
CREATE TABLE fp_umsatzerloese (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  section TEXT NOT NULL,             -- 'revenue', 'quantity', 'price'
  row_label TEXT NOT NULL,           -- 'Modul 1', 'Modul 2', ...
  row_index INT NOT NULL,
  is_editable BOOLEAN DEFAULT false, -- only prices are editable
  values JSONB NOT NULL DEFAULT '{}',
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- MATERIALAUFWAND (sehr einfach: nur Mac Mini + Mac Studio)
-- Cost = Quantity × Unit Cost (EK)
-- Mac Mini EK: 3.200 EUR, VK: 4.800 EUR (50% Aufschlag)
-- Mac Studio EK: 13.000 EUR, VK: 19.500 EUR (50% Aufschlag)
-- ============================================================================
CREATE TABLE fp_materialaufwand (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  section TEXT NOT NULL,             -- 'cost', 'quantity', 'unit_cost'
  row_label TEXT NOT NULL,
  row_index INT NOT NULL,
  is_editable BOOLEAN DEFAULT false, -- only unit costs are editable
  values JSONB NOT NULL DEFAULT '{}',
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- PERSONALKOSTEN (20 Positionen)
-- Structured: Name, Position, Start, End, Brutto, Raise%
-- Computed: monthly salary × AG-Sozialversicherung
-- ============================================================================
CREATE TABLE fp_personalkosten (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  person_name TEXT NOT NULL,
  person_nr TEXT,                    -- '001', '002', ...
  position TEXT,                     -- 'GF', 'Vertrieb', 'Entwicklung', ...
  start_date DATE,
  end_date DATE,                     -- null = permanent
  brutto_monthly NUMERIC(10,2),      -- Bruttogehalt/Monat
  annual_raise_pct NUMERIC(5,2) DEFAULT 3.0,
  ag_sozial_pct NUMERIC(5,2) DEFAULT 20.425, -- AG-Anteil Sozialversicherung
  is_editable BOOLEAN DEFAULT true,
  -- Computed monthly values
  values_brutto JSONB NOT NULL DEFAULT '{}',   -- monthly brutto
  values_sozial JSONB NOT NULL DEFAULT '{}',   -- monthly AG-Sozial
  values_total JSONB NOT NULL DEFAULT '{}',    -- brutto + sozial
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- BETRIEBLICHE AUFWENDUNGEN (~40 Kostenposten)
-- Most are fixed monthly values (editable)
-- Some are computed (Summen, Abschreibungen)
-- ============================================================================
CREATE TABLE fp_betriebliche_aufwendungen (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  category TEXT NOT NULL,            -- 'raumkosten', 'versicherungen', 'marketing', etc.
  row_label TEXT NOT NULL,
  row_index INT NOT NULL,
  is_editable BOOLEAN DEFAULT true,
  is_sum_row BOOLEAN DEFAULT false,  -- true for category subtotals
  formula_desc TEXT,                 -- e.g. 'SUM(rows 9-18)', '=Personalkosten!Y4'
  values JSONB NOT NULL DEFAULT '{}',
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- INVESTITIONEN (Anlagegüter mit AfA)
-- Each item: name, amount, purchase date, useful life, depreciation
-- ============================================================================
CREATE TABLE fp_investitionen (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  item_name TEXT NOT NULL,
  category TEXT,                     -- 'gwg', 'ausstattung', etc.
  purchase_amount NUMERIC(12,2) NOT NULL,
  purchase_date DATE,
  afa_years INT,                     -- useful life in years
  afa_end_date DATE,                 -- computed end date
  is_editable BOOLEAN DEFAULT true,
  -- Computed: monthly investment amount (in purchase month) and depreciation
  values_invest JSONB NOT NULL DEFAULT '{}',   -- investment amount per month
  values_afa JSONB NOT NULL DEFAULT '{}',      -- monthly depreciation
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- SONST. BETRIEBLICHE ERTRAEGE (6 Kategorien × 3 Zeilen)
-- ============================================================================
CREATE TABLE fp_sonst_ertraege (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  category TEXT NOT NULL,            -- '1-Interne Kostenstellen', '2-Entwicklung National', etc.
  row_label TEXT,
  row_index INT NOT NULL,
  is_editable BOOLEAN DEFAULT true,
  is_sum_row BOOLEAN DEFAULT false,
  values JSONB NOT NULL DEFAULT '{}',
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- LIQUIDITAET (computed from all above)
-- ============================================================================
CREATE TABLE fp_liquiditaet (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  row_label TEXT NOT NULL,
  row_type TEXT NOT NULL,            -- 'einzahlung', 'auszahlung', 'ueberschuss', 'kontostand'
  is_editable BOOLEAN DEFAULT false, -- only Eigenkapital, Fremdkapital, Entnahmen editable
  formula_desc TEXT,
  values JSONB NOT NULL DEFAULT '{}',
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- GUV JAHRESABSCHLUSS (annual summary, 5 years)
-- ============================================================================
CREATE TABLE fp_guv (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  row_label TEXT NOT NULL,
  row_index INT NOT NULL,
  is_sum_row BOOLEAN DEFAULT false,
  formula_desc TEXT,
  values JSONB NOT NULL DEFAULT '{}', -- {y2026: ..., y2027: ..., y2030: ...}
  excel_row INT,
  sort_order INT NOT NULL,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- ============================================================================
-- CELL OVERRIDES (for scenario-specific manual edits)
-- ============================================================================
CREATE TABLE fp_cell_overrides (
  id SERIAL PRIMARY KEY,
  scenario_id UUID REFERENCES fp_scenarios(id) ON DELETE CASCADE,
  sheet_name TEXT NOT NULL,          -- 'kunden', 'personalkosten', etc.
  row_id INT NOT NULL,               -- references the id in the sheet table
  month_key TEXT NOT NULL,           -- 'm1', 'm2', ... 'm60' or 'y2026', etc.
  override_value NUMERIC,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  UNIQUE(scenario_id, sheet_name, row_id, month_key)
);

-- ============================================================================
-- INDEXES
-- ============================================================================
CREATE INDEX idx_fp_kunden_scenario ON fp_kunden(scenario_id);
CREATE INDEX idx_fp_kunden_summary_scenario ON fp_kunden_summary(scenario_id);
CREATE INDEX idx_fp_umsatz_scenario ON fp_umsatzerloese(scenario_id);
CREATE INDEX idx_fp_material_scenario ON fp_materialaufwand(scenario_id);
CREATE INDEX idx_fp_personal_scenario ON fp_personalkosten(scenario_id);
CREATE INDEX idx_fp_betrieb_scenario ON fp_betriebliche_aufwendungen(scenario_id);
CREATE INDEX idx_fp_invest_scenario ON fp_investitionen(scenario_id);
CREATE INDEX idx_fp_sonst_scenario ON fp_sonst_ertraege(scenario_id);
CREATE INDEX idx_fp_liquid_scenario ON fp_liquiditaet(scenario_id);
CREATE INDEX idx_fp_guv_scenario ON fp_guv(scenario_id);
CREATE INDEX idx_fp_overrides_lookup ON fp_cell_overrides(scenario_id, sheet_name, row_id);