include("../ho_basis.jl")
include("../EC.jl")

V_of_r(r) = 2 * exp(-(r-3)^2 / (1.5)^2)
Λ = 0
m = 1.0

μω_global = 0.5 * exp(-2im * pi / 9)
E_max = 30

H0 = get_3b_H_matrix(src, V_of_r, μω_global, E_max, Λ, m, true, true)

# Vp = perturbation to make the state artificially bound
Vp_of_r(r) = -exp(-(r/3)^2)
@time "Vp" Vp = get_3b_H_matrix(src, Vp_of_r, μω_global, E_max, Λ, m, false, true)

training_ref = -0.72763
extrapolating_ref = 4.0766890719636635 - 0.01275892774109674im

training_c = [2.0, 1.9, 1.8]
extrapolating_c = 0.0 : 0.2 : 1.2

EC = affine_EC(H0, Vp)
train!(EC, training_c; ref_eval=training_ref, CAEC=true, orthonormalize_threshold=0, pseudo_inv_rtol=1e-6)
extrapolate!(EC, extrapolating_c; ref_eval=extrapolating_ref)

exportCSV(EC, "temp/HO_B2R.csv")
plot(EC, "temp/HO_B2R.pdf")