// ─── HALL GEOMETRY ────────────────────────────────────────────────────────────
// Confirmed measurements — SK-303 Version B + site survey
//
// PLAN  (square seating zone, all radii from geometric centre):
//   Overall seating plan:  20914 × 20914 mm   (half-width = 10457 mm)
//   Row 1 front edge:       2210 mm  (inner edge of first bench row)
//   Row pitch (FFL–FFL):     883 mm  × 8 main rows
//   Row 8 back face:        8411 mm  (per SK-303 drawing; includes ~20 mm bench thickness)
//   Back aisle:             2046 mm  (10457 − 8411 = 2046 ✓)
//   Corner rows:            4 rows per corner, same 883 mm pitch
//   Corner row 1 front:     620 mm from the circular seating edge
//
// SECTION:
//   CEILING IS FLAT — one horizontal plane at ceilFlat above the centre floor datum.
//   Measured floor-to-ceiling at row 8 back = 3600 mm; floor at row 8 = +700 mm
//   → flat ceiling at 3600 + 700 = 4300 mm above centre datum.
//   Corner zone ceiling is structurally lower at cornerCeilClearance floor-to-ceiling.
//
//   FLOOR IS DISHED — rises from 0 mm at centre (communion table zone)
//   to +700 mm at row 8 back face, slope ≈ 1:8.9.
//   The flat centre zone (r = 0 → row1Radius) is the communion table area.
//
// SPEAKERS:  All flush-mounted (no drop rods).  Hanging face at ceiling height.
//   Suggested power (Dudley Wilkin, 2010 Aberdeen layout):
//     Centre (spk 13):  6 W   — covers rows 1–3
//     Inner ring (1–8): 8 W   — covers rows 4–7
//     Outer ring (9–12):4 W   — covers row 8 + aisle back
//     Corner (2 per corner): 4 W

export const HALL_DEFAULTS = {
  // Plan
  hallWidth:           20914, // mm — confirmed seating plan dimension
  rows:                    8, // main circular rows
  row1Radius:           2210, // mm — centre to front edge of row 1 (inner edge)
  rowPitch:              883, // mm — FFL to FFL
  row8Back:             8411, // mm — centre to back face of row 8 (per SK-303)
  aisleWidth:           2046, // mm — back aisle behind row 8
  // Corner seating
  hasCornerRows:        true,
  cornerRows:              4, // rows in each corner zone
  cornerFrontOffset:     620, // mm — front of corner row 1 measured from circular seating edge
  // Ceiling — FLAT throughout main seating zone
  ceilFlat:             4300, // mm — absolute ceiling height above centre floor datum
  //   Derivation: floor-to-ceiling at row 8 back (3600 mm) + floor rise at row 8 (700 mm)
  cornerCeilClearance:  2900, // mm — floor-to-ceiling in corner zone (structural drop)
  // Floor — dished bowl, lowest at centre
  dishRise:              700, // mm — floor rise from centre datum to row 8 back face
  //   Slope: 700 mm over 6201 mm (row1Radius → row8Back) ≈ 1:8.9
  // Acoustic
  earHeight:            1100, // mm — seated ear height above local floor
  speedOfSound:          343, // m/s  (20 °C)
  tileGrid:              600, // mm — ceiling tile grid (constrains speaker positions)
};

// ─── SPEAKER RINGS ────────────────────────────────────────────────────────────
// All flush-mounted (dropRod = 0). Acoustic face is at the ceiling surface.
// Power settings per Dudley Wilkin's 2010 Aberdeen 8-row hall proposal.

export const SPEAKER_DEFAULTS = {
  centre: {
    enabled:     true,
    count:          1,
    radius:         0,   // mm — geometric centre of ceiling
    dropRod:        0,   // mm — flush (no rod)
    power:          6,   // W
    sensitivity:   88,   // dB / 1 W / 1 m  (Visaton FRS8M + G20SC combined)
    // phase codes: 1=all-normal, 4=quarter (quadrant), 8=eighth (per-speaker), -1=all-inverted
    phase:          1,   // single speaker — no alternating pattern applies
    label: 'Centre (×1)',
  },
  inner: {
    enabled:     true,
    count:          8,
    radius:      5720,   // mm — confirmed site measurement
    dropRod:        0,
    power:          8,   // W
    sensitivity:   88,
    phase:          4,   // 1/4 quadrant anti-phase (pairs of 2 reversed, 4 null lines)
    label: 'Inner Ring (×8)',
  },
  outer: {
    enabled:     true,
    count:          8,
    radius:      8600,   // mm — confirmed site measurement
    dropRod:        0,
    power:          4,   // W
    sensitivity:   88,
    phase:          4,   // 1/4 quadrant anti-phase
    label: 'Outer Ring (×8)',
  },
  corner: {
    enabled:     true,
    count:          8,   // 2 per corner × 4 corners
    radius:     10310,   // mm — confirmed; 1500 mm from side walls
    dropRod:        0,
    power:          4,   // W
    sensitivity:   88,
    phase:          4,   // 1/4 quadrant (adjacent corners alternate, 2 spk per corner)
    label: 'Corner (×8, 2/corner)',
  },
};

// ─── APPLICATION SETTINGS ─────────────────────────────────────────────────────

export const SETTINGS_DEFAULTS = {
  // LLM provider
  provider:        'ollama',
  ollamaHost:      'http://192.168.8.73',
  ollamaPort:      '11434',
  ollamaModel:     '',
  anthropicKey:    '',
  anthropicModel:  'claude-sonnet-4-6',
  // REW API
  rewHost:         'http://127.0.0.1',
  rewPort:         '4735',
  // LLM behaviour
  maxTokens:        2048,
  temperature:       0.3,
  systemPrompt: [
    'You are an expert acoustic consultant specialising in distributed ceiling speaker systems',
    'for large assembly halls. You have deep knowledge of accoustic ceiling speaker layout and design,',
    'including the MS6 speaker (Visaton FRS8M + G20SC drivers), the MIDAS MR12 active crossover',
    'with its 433 Hz gap at 3 kHz, anti-phasing techniques, and the Haas effect in multi-speaker',
    'environments. Analyse the provided coverage data and give specific, technical, actionable',
    'recommendations.',
  ].join(' '),
};