# Function: update_state_category
# Purpose: Updates the state category of the nation to improve to the next state category - Done once a year
state_init_setup = {
	for_each_scope_loop = {
		array = global.states
		# Descending thresholds: first match wins, so each state sets its category
		# exactly once. States <= 300k keep their existing category (no else).
		if = {
			limit = { state_population_k > 65000 }
			set_state_category = state_18
		}
		else_if = {
			limit = { state_population_k > 52000 }
			set_state_category = state_17
		}
		else_if = {
			limit = { state_population_k > 42000 }
			set_state_category = state_16
		}
		else_if = {
			limit = { state_population_k > 34000 }
			set_state_category = state_15
		}
		else_if = {
			limit = { state_population_k > 27000 }
			set_state_category = state_14
		}
		else_if = {
			limit = { state_population_k > 23000 }
			set_state_category = state_13
		}
		else_if = {
			limit = { state_population_k > 19000 }
			set_state_category = state_12
		}
		else_if = {
			limit = { state_population_k > 16000 }
			set_state_category = state_11
		}
		else_if = {
			limit = { state_population_k > 13000 }
			set_state_category = state_10
		}
		else_if = {
			limit = { state_population_k > 10500 }
			set_state_category = state_09
		}
		else_if = {
			limit = { state_population_k > 8500 }
			set_state_category = state_08
		}
		else_if = {
			limit = { state_population_k > 6800 }
			set_state_category = state_07
		}
		else_if = {
			limit = { state_population_k > 5200 }
			set_state_category = state_06
		}
		else_if = {
			limit = { state_population_k > 3800 }
			set_state_category = state_05
		}
		else_if = {
			limit = { state_population_k > 2500 }
			set_state_category = state_04
		}
		else_if = {
			limit = { state_population_k > 1500 }
			set_state_category = state_03
		}
		else_if = {
			limit = { state_population_k > 800 }
			set_state_category = state_02
		}
		else_if = {
			limit = { state_population_k > 300 }
			set_state_category = state_01
		}
	}
}

# Set/Remove Improved Trade Agreement
# sender_nation --- the nation sending the trade agreement
# receiver_nation --- Nation retrieving the agreement
# remove_agreement -- OPTIONAL (Set to 1)
set_improved_trade_agreement = {
	if = {
		limit = {
			var:receiver_nation = {
				var:sender_nation = {
					NOT = { has_country_flag = trade_agreement@PREV }
				}
			}
			NOT = { check_variable = { remove_agreement = 1 } }
		}
		var:receiver_nation = {
			var:sender_nation = {
				add_opinion_modifier = { target = PREV modifier = mutual_trade_agreement }
				add_opinion_modifier = { target = PREV modifier = mutual_trade_opinion }
				reverse_add_opinion_modifier = { target = PREV modifier = mutual_trade_opinion }
				reverse_add_opinion_modifier = { target = PREV modifier = mutual_trade_agreement }

				hidden_effect = {
					add_to_variable = { signed_trade_agreements = 1 }
					set_country_flag = trade_agreement@PREV
					var:receiver_nation = {
						add_to_variable = { signed_trade_agreements = 1 }
						set_country_flag = trade_agreement@PREV
					}
				}
			}
		}
		custom_effect_tooltip = set_improved_trade_agreement_tt
	}
	if = {
		limit = {
			var:receiver_nation = {
				var:sender_nation = {
					has_country_flag = trade_agreement@PREV
				}
			}
			check_variable = { remove_agreement = 1 }
		}
		var:receiver_nation = {
			var:sender_nation = {
				remove_opinion_modifier = { target = PREV modifier = mutual_trade_agreement }
				remove_opinion_modifier = { target = PREV modifier = mutual_trade_opinion }
				add_opinion_modifier = { target = PREV modifier = broke_trade_agreement }

				clr_country_flag = trade_agreement@PREV
				add_to_variable = { signed_trade_agreements = -1 }
				var:receiver_nation = {
					remove_opinion_modifier = { target = PREV modifier = mutual_trade_agreement }
					remove_opinion_modifier = { target = PREV modifier = mutual_trade_opinion }
					add_opinion_modifier = { target = PREV modifier = broke_trade_agreement }
					clr_country_flag = trade_agreement@PREV
					add_to_variable = { signed_trade_agreements = -1 }
				}
			}
		}
		custom_effect_tooltip = remove_improved_trade_agreement_tt
	}
}

# ROOT = the country that was just puppeted, FROM = its new overlord.
reapply_agreement_opinion_modifiers = {
	if = {
		limit = { has_country_flag = trade_agreement@FROM }
		add_opinion_modifier = { target = FROM modifier = mutual_trade_agreement }
		add_opinion_modifier = { target = FROM modifier = mutual_trade_opinion }
		reverse_add_opinion_modifier = { target = FROM modifier = mutual_trade_opinion }
		reverse_add_opinion_modifier = { target = FROM modifier = mutual_trade_agreement }
	}
	if = {
		limit = { has_country_flag = mutual_investment_treaty_@FROM }
		add_opinion_modifier = { target = FROM modifier = mutual_investment_treaty_opinion }
		add_opinion_modifier = { target = FROM modifier = mutual_investment_treaty_trade_opinion }
		reverse_add_opinion_modifier = { target = FROM modifier = mutual_investment_treaty_opinion }
		reverse_add_opinion_modifier = { target = FROM modifier = mutual_investment_treaty_trade_opinion }
	}
}

quarterly_inflation_calculation = {
	#Get and set the basic civilian economic growth for this quarter, and grab our old inflation rate
	set_temp_variable = { last_inflation_rate = inflation_rate_var }

	set_temp_variable = {
		gdpc_inflation_adjuster = {
			value = gdp_per_capita
			multiply = 0.01
			multiply = last_quarter_gdpc_growth_rate
		}
	}

	if = {
		limit = { has_idea = depression }
		set_temp_variable = { cycle_inflation_adjustment = -0.035 }
	} else_if = {
		limit = { has_idea = recession }
		set_temp_variable = { cycle_inflation_adjustment = -0.025 }
	} else_if = {
		limit = { has_idea = stagnation }
		set_temp_variable = { cycle_inflation_adjustment = -0.015 }
	} else_if = {
		limit = { has_idea = stable_growth }
		set_temp_variable = { cycle_inflation_adjustment = 0 }
	} else_if = {
		limit = { has_idea = fast_growth }
		set_temp_variable = { cycle_inflation_adjustment = 0.015 }
	} else = {
		set_temp_variable = { cycle_inflation_adjustment = 0.025 }
	}

	set_temp_variable = {
		inflation_rate_adjuster = {
			value = last_quarter_gdpc_growth_rate
			multiply = { value = tax_rate multiply = 0.01 }
			subtract = {
				value = cb_policy_rate
				subtract = {
					value = inflation_rate_var
					multiply = 100
					max = 2
				}
				multiply = 0.003
			}
			add = gdpc_inflation_adjuster
			add = {
				value = cycle_inflation_adjustment
				multiply = { value = display_expense multiply = 0.01 }
			}
			add = {
				value = treasury_rate
				multiply = -0.01
				multiply = gdpc_inflation_adjuster
			}
			multiply = { value = 1 add = print_money_base_add }
		}
	}
	set_variable = { print_money_base_add = 0 }

	#Calculation of the quarterly rate finished, now move to calculate the yearly average off those numbers
	#Check to make sure the array has only 4 items, and add up the value
	set_temp_variable = { total_elements = year_quarter_inflation_tracker^num }

	if = { limit = { check_variable = { total_elements > 3 } }
		remove_from_array = {
			array = year_quarter_inflation_tracker
			index = 0
		}
	}

	#Add this to the array, so we can average yearly inflation. this should stop rapid swings up and down, slowing movement
	add_to_array = { year_quarter_inflation_tracker = inflation_rate_adjuster }
	set_temp_variable = { new_inflation_rate = 0 }
	#Reset the tracker here; this will prevent divide by 0, and give the most current number before division
	set_temp_variable = { total_elements = year_quarter_inflation_tracker^num }

	for_each_loop = {
		array = year_quarter_inflation_tracker
		value = v

		add_to_temp_variable = { new_inflation_rate = v }
	}

	#Maximum inflation movement per quarter of 10%. This means that the max you can move in a year is 40% in either direction
	#This is a balance mechanic, both for gameplay, and for when you eat a whole country and your finances go crazy. On quick quarterly spike, and then back down
	#Hard cap inflation at -200% to 200%
	set_temp_variable = {
		new_inflation_rate = {
			value = new_inflation_rate
			divide = total_elements
			max = { value = last_inflation_rate subtract = 0.1 }
			min = { value = last_inflation_rate add = 0.1 }
			clamp = { min = -2 max = 2 }
		}
	}
	set_variable = { inflation_rate_var = new_inflation_rate }
	if = { limit = { is_debug = yes }
		log = "[GetDateText]: [THIS.GetName]: DEBUG: Inflation Update: Current Inflation Rate: [?THIS.inflation_rate_var|%]"
		log = "[GetDateText]: [THIS.GetName]: DEBUG: Inflation Update: Last Four Quarters: [?THIS.year_quarter_inflation_tracker^0|%] - [?THIS.year_quarter_inflation_tracker^1|%] - [?THIS.year_quarter_inflation_tracker^2|%] - [?THIS.year_quarter_inflation_tracker^3|%]"
	}
	calculate_inflation_effects = yes

	#AI-only: adjust cb_policy_rate once per quarter based on current inflation level
	#Uses the same 60-day cooldown flag as the player GUI buttons
	if = {
		limit = {
			is_ai = yes
			NOT = { has_country_flag = temp_cb_rate_changed }
		}
		if = {
			limit = {
				check_variable = { inflation_rate_var > 0.10 }
				check_variable = { cb_policy_rate < 20 }
			}
			add_to_variable = { cb_policy_rate = 1 }
			set_country_flag = { flag = temp_cb_rate_changed value = 1 days = 60 }
		}
		else_if = {
			limit = {
				check_variable = { inflation_rate_var > 0.05 }
				check_variable = { cb_policy_rate < 15 }
			}
			add_to_variable = { cb_policy_rate = 1 }
			set_country_flag = { flag = temp_cb_rate_changed value = 1 days = 60 }
		}
		else_if = {
			limit = {
				check_variable = { inflation_rate_var < 0.01 }
				check_variable = { cb_policy_rate > 1 }
			}
			subtract_from_variable = { cb_policy_rate = 1 }
			set_country_flag = { flag = temp_cb_rate_changed value = 1 days = 60 }
		}
	}
}

calculate_inflation_effects = {
	set_variable = {
		inflation_rate_prod_var = {
			value = inflation_rate_var
			multiply = 1.25
		}
	}
	set_variable = {
		inflation_rate_econ_var = {
			value = inflation_rate_var
			multiply = 1.25
		}
	}
	set_variable = {
		inflation_construction_speed_var = {
			value = inflation_rate_var
			multiply = 1.70
		}
	}
	set_variable = {
		inflation_rate_output_var = {
			value = inflation_rate_var
			multiply = -1.35
		}
	}
	set_variable = {
		trade_law_cost_var = {
			value = inflation_rate_var
			multiply = 1.5
		}
	}
	set_variable = {
		inflation_goods_var = {
			value = inflation_rate_var
			multiply = -0.4
		}
	}

	set_variable = { inflation_corruption_var = inflation_rate_var }

	# Combined inflation cost: economic rate + currency exchange pressure
	# Currency can reduce inflation but must not cause deflation
	set_variable = {
		inflation_cost_combined_var = {
			value = inflation_rate_var
			add = currency_inflation_feed
			clamp = { min = 0 max = 10000 }
		}
	}
}