#version 330 core
out vec4 fragColor;


//uniform float light_power;
uniform vec3 lightColor;
uniform vec3 objectColor;
//uniform vec3 view_pos;

in vec3 FragPos;
in vec3 Normal;
in vec3 LightPos;

const float light_power = 12.0;
const float ambientStrength = 0.1;
const float shininess = 64.0;
const float screenGamma = 2.2; // Assume the monitor is calibrated to the sRGB color space

void main()
{
    // FragColor = vec4(1.0f, 0.0f, 0.0f, 1.0f);

//    fragColor = vec4(dot(LightPos, Normal) * lightColor, 1.0);
    vec3 norm = normalize(Normal);
    vec3 lightDir = normalize(LightPos - FragPos);

    float diff = max(dot(norm, lightDir), 0.0);
    vec3 diffuse = diff * lightColor;

    vec3 ambient = ambientStrength * lightColor;

    vec3 result = (ambient + diffuse) * objectColor;
    fragColor = vec4(result, 1.0);

//        vec3 lightDir = LightPos - FragPos;
//        float distance = length(lightDir);
//        vec3 norm = normalize(Normal);
//        vec3 ambient = ambientStrength * lightColor;
//
//        distance = distance * distance;
//        lightDir = normalize(lightDir);
//
//        float lambertian = max(dot(norm, lightDir), 0.0);
//        vec3 diffuse = lambertian * lightColor;
//        float specular = 0.0;
//
//        if (lambertian > 0.0)
//        {
//            vec3 viewDir = normalize(-FragPos);
//
//            vec3 halfDir = normalize(lightDir + viewDir);
//            float specAngle = max(dot(halfDir, norm), 0.0);
//            specular = pow(specAngle, shininess);
//        }
//
//        vec3 colorLinear = (ambient + (diffuse * light_power) + (specular * light_power)) * objectColor;
//
//        // vec3 colorGammaCorrected = pow(colorLinear, vec3(1.0 / screenGamma));
//
//        fragColor = vec4(colorLinear, 1.0);

        // vec3 norm = normalize(Normal);
}