AGRI_plant_the_seeds = {
	if = { limit = { is_agrarian_economy = yes }
		add_ideas = agrarian_economy
		AGRI_difficulty_settings = yes
	}
}

AGRI_difficulty_settings = {
	if = { limit = { is_ai = no }
		if = {
			limit = { difficulty < 1 }
			add_to_variable = { agri_crop_price^0 = 10 }
			add_to_variable = { agri_crop_price^1 = 15 }
		}
		if = {
			limit = {
				difficulty > 0
				difficulty < 2
			}
			add_to_variable = { agri_crop_price^0 = 5 }
			add_to_variable = { agri_crop_price^1 = 10 }
		}
		if = {
			limit = {
				difficulty > 2
				difficulty < 4
			}
			add_to_variable = { agri_crop_price^0 = -5 }
			add_to_variable = { agri_crop_price^1 = -10 }
		}
		if = {
			limit = {
				difficulty > 3
				difficulty < 5
			}
			add_to_variable = { agri_crop_price^0 = -10 }
			add_to_variable = { agri_crop_price^1 = -15 }
		}
	}
	if = { limit = { is_ai = yes }
		if = {
			limit = {
				difficulty > 2
				difficulty < 4
			}
			add_to_variable = { agri_crop_price^0 = 5 }
			add_to_variable = { agri_crop_price^1 = 10 }
		}
		if = {
			limit = {
				difficulty > 3
				difficulty < 5
			}
			add_to_variable = { agri_crop_price^0 = 10 }
			add_to_variable = { agri_crop_price^1 = 15 }
		}
	}
	AGRI_update_math_variables = yes
}

AGRI_civil_war = {
	if = {
		limit = { FROM = { is_agrarian_economy = yes } }
		set_variable = { ROOT.agri_crop_allocation^0 = FROM.agri_crop_allocation^0 }
		set_variable = { ROOT.agri_crop_allocation^1 = FROM.agri_crop_allocation^1 }
		set_variable = { ROOT.agri_crop_price^0 = FROM.agri_crop_price^0 }
		set_variable = { ROOT.agri_crop_price^1 = FROM.agri_crop_price^1 }
		AGRI_plant_the_seeds = yes
	}
}

AGRI_allocation_change_effect = {
	add_to_variable = { agri_crop_allocation^crop_type = allocation_change }
	clamp_variable = {
		var = agri_crop_allocation^crop_type
		min = 0
		max = 1
	}
	custom_effect_tooltip = agri_allocation_change
}

AGRI_price_change_effect = {
	add_to_variable = { agri_crop_price^crop_type = price_change }
	clamp_variable = {
		var = agri_crop_price^crop_type
		min = 0
		max = 50
	}
	custom_effect_tooltip = agri_price_change
}

# Apply the same price_change (temp) to both crop types. Caller sets price_change.
AGRI_price_change_all_crops = {
	set_temp_variable = { crop_type = 0 }
	AGRI_price_change_effect = yes
	set_temp_variable = { crop_type = 1 }
	AGRI_price_change_effect = yes
}

# Shift land between crops: allocation_change (temp) goes to basic, its inverse to cash.
AGRI_shift_crop_allocation = {
	set_temp_variable = { crop_type = 0 }
	AGRI_allocation_change_effect = yes
	multiply_temp_variable = { allocation_change = -1 }
	set_temp_variable = { crop_type = 1 }
	AGRI_allocation_change_effect = yes
}

AGRI_protection_update = {
	add_to_variable = { AGRI_protection = AGRI_protections_change }
	custom_effect_tooltip = AGRI_protections_effect
}

# Alert agrarian neighbours (skipping our patron) and our patron about a drought,
# one effect per severity tier. Called from the AGRI.2 drought-response options.
AGRI_spread_drought_minor = {
	every_neighbor_country = {
		limit = { NOT = { check_variable = { PREV.influence_array^0 = THIS.id } } }
		country_event = { id = AGRI_neighbour.1 days = 2 }
	}
	var:influence_array^0 = { country_event = { id = AGRI_influencer.1 days = 2 } }
}

AGRI_spread_drought_major = {
	every_neighbor_country = {
		limit = { NOT = { check_variable = { PREV.influence_array^0 = THIS.id } } }
		country_event = { id = AGRI_neighbour.2 days = 2 }
	}
	var:influence_array^0 = { country_event = { id = AGRI_influencer.2 days = 2 } }
}

AGRI_spread_drought_extreme = {
	every_neighbor_country = {
		limit = { NOT = { check_variable = { PREV.influence_array^0 = THIS.id } } }
		country_event = { id = AGRI_neighbour.3 days = 2 }
	}
	var:influence_array^0 = { country_event = { id = AGRI_influencer.3 days = 2 } }
}

AGRI_banked_changes_update_basic = {
	set_variable = { AGRI_pp_cost = { value = AGRI_banked_changes_cash  multiply = 1000 } }
	set_variable = { AGRI_pp_check = { value = AGRI_pp_cost  multiply = -1 } }
}

AGRI_banked_changes_update_cash = {
	set_variable = { AGRI_pp_cost = { value = AGRI_banked_changes_basic  multiply = 1000 } }
	set_variable = { AGRI_pp_check = { value = AGRI_pp_cost  multiply = -1 } }
}

AGRI_clear_banked_variables = {
	clear_variable = AGRI_banked_changes_basic
	clear_variable = AGRI_banked_changes_cash
	clear_variable = AGRI_pp_cost
}

# Bank an allocation shift toward basic crops (cash gets the inverse). Expects temp
# var AGRI_bank_delta (the signed basic-side change). A positive shift that collides
# with already-banked cash changes clears the bank first; the GUI buttons set the delta.
AGRI_bank_basic_change = {
	if = {
		limit = {
			check_variable = { AGRI_bank_delta > 0 }
			check_variable = { AGRI_banked_changes_cash > 0 }
		}
		AGRI_clear_banked_variables = yes
	}
	add_to_variable = { AGRI_banked_changes_basic = AGRI_bank_delta }
	set_temp_variable = { AGRI_bank_delta_inv = { value = AGRI_bank_delta  multiply = -1 } }
	add_to_variable = { AGRI_banked_changes_cash = AGRI_bank_delta_inv }
	AGRI_banked_changes_update_basic = yes
}

# Mirror of AGRI_bank_basic_change for cash crops. AGRI_bank_delta is the cash-side change.
AGRI_bank_cash_change = {
	if = {
		limit = {
			check_variable = { AGRI_bank_delta > 0 }
			check_variable = { AGRI_banked_changes_basic > 0 }
		}
		AGRI_clear_banked_variables = yes
	}
	add_to_variable = { AGRI_banked_changes_cash = AGRI_bank_delta }
	set_temp_variable = { AGRI_bank_delta_inv = { value = AGRI_bank_delta  multiply = -1 } }
	add_to_variable = { AGRI_banked_changes_basic = AGRI_bank_delta_inv }
	AGRI_banked_changes_update_cash = yes
}

AGRI_monthly_changes_math = {
	set_variable = { AGRI_monthly_changes_basic = { value = AGRI_banked_changes_basic  multiply = 0.5 } }
	set_variable = { AGRI_monthly_changes_cash = { value = AGRI_banked_changes_cash  multiply = 0.5 } }
}

AGRI_update_math_variables = {
	# Output = farm workers weighted by each crop's allocation share
	set_variable = { basic_crop_output = { value = agriculture_workers  multiply = agri_crop_allocation^0 } }
	set_variable = { cash_crop_output = { value = agriculture_workers  multiply = agri_crop_allocation^1 } }
	# Value = output times that crop's price
	set_variable = { basic_crop_total_value = { value = basic_crop_output  multiply = agri_crop_price^0 } }
	set_variable = { cash_crop_total_value = { value = cash_crop_output  multiply = agri_crop_price^1 } }
	# Combined income, scaled by the 1.85 productivity constant
	set_variable = { combined_crop_value = { value = basic_crop_total_value  add = cash_crop_total_value  multiply = 1.85 } }
	# Yearly harvest divides by literacy_rate (clamped >= 0.01 in the education system)
	set_variable = { yearly_harvest_value = { value = combined_crop_value  divide = literacy_rate } }
	# weekly income (yearly / 52 / 100), and the annual/weekly display figures
	set_variable = { weekly_harvest_billion = { value = yearly_harvest_value  multiply = 0.00019 } }
	set_variable = { annual_harvest_display = { value = yearly_harvest_value  multiply = 0.1 } }
	set_variable = { weekly_harvest_display = { value = yearly_harvest_value  multiply = 1.92308 } }
}

AGRI_plow_the_fields = {
	if = { # ALLOCATION CHANGES
		limit = {
			OR = {
				has_country_flag = agriculture_allocation_drift_basic
				has_country_flag = agriculture_allocation_drift_cash
			}
		}
		set_temp_variable = { allocation_change = AGRI_monthly_changes_basic }
		set_temp_variable = { crop_type = 0 }
		AGRI_allocation_change_effect = yes
		set_temp_variable = { allocation_change = AGRI_monthly_changes_cash }
		set_temp_variable = { crop_type = 1 }
		AGRI_allocation_change_effect = yes
	}
}