#!/usr/bin/python2.7
#author: Bryan Bishop <kanzure@gmail.com>
#date: 2012-01-07
#insert TX_FAR targets into pokered.asm
import extract_maps
from analyze_texts import analyze_texts
from pretty_map_headers import map_name_cleaner, make_text_label, map_constants, find_all_tx_fars, tx_far_pretty_printer, tx_far_label_maker
import pretty_map_headers
from analyze_incbins import asm, offset_to_pointer, find_incbin_to_replace_for, split_incbin_line_into_three, generate_diff_insert, load_asm, isolate_incbins, process_incbins, reset_incbins, apply_diff
import analyze_incbins
import os, sys
import subprocess
spacing = "    "
tx_fars = None

def find_tx_far_entry(map_id, text_id):
    for tx_far_line in tx_fars:
        if tx_far_line[0] == map_id and tx_far_line[1] == text_id:
            return tx_far_line

def insert_tx_far(map_id, text_id, tx_far_line=None):
    "inserts a tx_far"
    global tx_fars
    if tx_far_line == None:
        tx_far_line = find_tx_far_entry(map_id, text_id)
    text_pointer = tx_far_line[2]
    start_address = tx_far_line[3]
    tx_far_object = tx_far_line[4]
    end_address = tx_far_object[1]["end_address"] + 1 #the end byte; +1 because of a bug somewhere :(

    line_number = find_incbin_to_replace_for(start_address)
    if line_number == None:
        print "skipping tx_far for map_id=" + str(map_id) + " text_id=" + str(text_id) + " text_pointer=" + hex(text_pointer) + " tx_far_start_address=" + hex(start_address)
        return

    #also do a name check
    label = tx_far_label_maker(extract_maps.map_headers[map_id]["name"], text_id)
    if (label + ":") in "\n".join(analyze_incbins.asm):
        print "skipping tx_far for map_id=" + str(map_id) + " text_id=" + str(text_id) + " text_pointer=" + hex(text_pointer) + " tx_far_start_address=" + hex(start_address)
        return
    
    newlines = split_incbin_line_into_three(line_number, start_address, end_address - start_address)
    tx_far_asm = tx_far_pretty_printer(tx_far_line)

    newlines = newlines.split("\n")
    if len(newlines) == 2: index = 0 #replace the 1st line with new content
    elif len(newlines) == 3: index = 1 #replace the 2nd line with new content
    
    newlines[index] = tx_far_asm

    if len(newlines) == 3 and newlines[2][-2:] == "$0":
        #get rid of the last incbin line if it is only including 0 bytes
        del newlines[2]
        #note that this has to be done after adding in the new asm
    newlines = "\n".join(line for line in newlines)
    newlines = newlines.replace("$x", "$") #where does this keep coming from??

    #signs are dumb; cluster the labels please
    if "\"needs fulfilled!\", $55" in newlines:
        newlines = "\n" + label + ": "
        line_number += 1
    if ("STRENGTH to move!" in newlines) or ("it the way it is." in newlines):
        newlines = "\n" + label + ": "
        line_number += 1
    if "@\"" in newlines and not "@@\"" in newlines:
        newlines = newlines.replace("@", "@@")

    #Char52 doesn't work yet? oh well
    newlines = newlines.replace("Char52", "$52")

    diff = generate_diff_insert(line_number, newlines)
    print "working on map_id=" + str(map_id) + " text_id=" + str(text_id)
    print diff
    apply_diff(diff)

def insert_all_tx_far_targets():
    for tx_far in tx_fars:
        map_id = tx_far[0]
        text_id = tx_far[1]
        #if map_id <= 185: continue #i'm just trying to get it going faster

        insert_tx_far(map_id, text_id, tx_far_line=tx_far)

        reset_incbins()
        analyze_incbins.reset_incbins()
        asm = None
        incbin_lines = []
        processed_incbins = {}
        analyze_incbins.asm = None
        analyze_incbins.incbin_lines = []
        analyze_incbins.processed_incbins = {}

        load_asm()
        isolate_incbins()
        process_incbins()

def all_texts_are_tx_fars(map_id):
    map2 = extract_maps.map_headers[map_id]
    for text_id in map2["texts"]:
        txt = map2["texts"][text_id]
        if not "TX_FAR" in txt[0].keys(): return False
    return True

def texts_label_pretty_printer(map_id):
    "output a texts label for map if all texts are TX_FARs and in the asm already"
    #extract_maps.map_headers[map_id]["texts"][text_id][0]["TX_FAR"]
    if not all_texts_are_tx_fars(map_id): return None
    map2 = extract_maps.map_headers[map_id]

    #pointer to the list of texts
    texts_list_pointer = int(map2["texts_pointer"], 16)

    #get the label for this texts list
    base_label = map_name_cleaner(map2["name"], None)[:-2]
    label = base_label + "Texts"

    #make up a label for each text
    text_labels = []
    text_id = 1
    for text in map2["texts"].keys():
        text_label = base_label + "Text" + str(text_id)
        text_labels.append(text_label)
        text_id += 1
    
    output = label + ": ; " + hex(texts_list_pointer)
    output += "\n"
    output += spacing + "dw "

    first = True
    for labela in text_labels:
        if not first:
            output += ", " + labela
        else:
            output += labela
            first = False

    return output

def insert_texts_label(map_id):
    if not all_texts_are_tx_fars(map_id): return None
    map2 = extract_maps.map_headers[map_id]
    
    base_label = map_name_cleaner(map2["name"], None)[:-2]
    label = base_label + "Texts"
    texts_pointer = int(map2["texts_pointer"], 16)

    insert_asm = texts_label_pretty_printer(map_id)

    line_number = find_incbin_to_replace_for(texts_pointer)
    if line_number == None:
        print "skipping texts label for map_id=" + str(map_id) + " texts_pointer=" + hex(texts_pointer) + " because the address is taken"
        return

    #also do a name check
    if (label + ":") in "\n".join(analyze_incbins.asm):
        print "skipping texts label for map_id=" + str(map_id) + " texts_pointer=" + hex(texts_pointer) + " because the label is already used"
        return
    
    newlines = split_incbin_line_into_three(line_number, texts_pointer, len(map2["referenced_texts"])*2 )

    newlines = newlines.split("\n")
    if len(newlines) == 2: index = 0 #replace the 1st line with new content
    elif len(newlines) == 3: index = 1 #replace the 2nd line with new content
    
    newlines[index] = insert_asm

    if len(newlines) == 3 and newlines[2][-2:] == "$0":
        #get rid of the last incbin line if it is only including 0 bytes
        del newlines[2]
        #note that this has to be done after adding in the new asm
    newlines = "\n".join(line for line in newlines)
    newlines = newlines.replace("$x", "$")

    diff = generate_diff_insert(line_number, newlines)
    print "working on map_id=" + str(map_id) + " texts_pointer=" + hex(texts_pointer)
    print diff
    #apply_diff(diff)

#untested as of 2012-01-07
def insert_all_texts_labels():
    for map_id in extract_maps.map_headers.keys():
        if map_id not in extract_maps.bad_maps:
            if len(extract_maps.map_headers[map_id]["referenced_texts"]) > 0:
                insert_texts_label(map_id)
        
                reset_incbins()
                analyze_incbins.reset_incbins()
                asm = None
                incbin_lines = []
                processed_incbins = {}
                analyze_incbins.asm = None
                analyze_incbins.incbin_lines = []
                analyze_incbins.processed_incbins = {}
        
                load_asm()
                isolate_incbins()
                process_incbins()

def txt_to_tx_far_pretty_printer(address, label, target_label, include_byte=False):
    output = "\n" + label + ": ; " + hex(address) + "\n"
    output += spacing + "TX_FAR " + target_label + "\n"
    if include_byte:
        output += spacing + "db $50\n"
    return output

def insert_text_label_tx_far(map_id, text_id):
    if map_id in extract_maps.bad_maps:
        print "bad map id=" + str(map_id)
        return
    map2 = extract_maps.map_headers[map_id]
    if map2["texts"][text_id] == {0: {}}: return None

    base_label = map_name_cleaner(map2["name"], None)[:-2]
    label = base_label + "Text" + str(text_id)
    target_label = "_" + label
    start_address = map2["texts"][text_id][0]["start_address"]
    include_byte = False
    print map2["texts"][text_id]
    if "type" in map2["texts"][text_id][1].keys():
        if map2["texts"][text_id][1]["type"] == 0x50:
            include_byte = True
    tx_far_asm = txt_to_tx_far_pretty_printer(start_address, label, target_label, include_byte=include_byte)
    
    line_number = find_incbin_to_replace_for(start_address)
    if line_number == None:
        print "skipping text label that calls TX_FAR for map_id=" + str(map_id) + " text_id=" + hex(text_id) + " because the address is taken"
        return

    #also do a name check
    if ("\n".join(analyze_incbins.asm)).count(label + ":") > 1:
        print "skipping text label that calls TX_FAR for map_id=" + str(map_id) + " text_id" + hex(text_id) + " because the label is already used (" + label + ":)"
        return
    
    extra = 0
    if include_byte: extra += 1
    newlines = split_incbin_line_into_three(line_number, start_address, 4 + extra )

    newlines = newlines.split("\n")
    if len(newlines) == 2: index = 0 #replace the 1st line with new content
    elif len(newlines) == 3: index = 1 #replace the 2nd line with new content
    
    newlines[index] = tx_far_asm

    if len(newlines) == 3 and newlines[2][-2:] == "$0":
        #get rid of the last incbin line if it is only including 0 bytes
        del newlines[2]
        #note that this has to be done after adding in the new asm
    newlines = "\n".join(line for line in newlines)

    newlines = newlines.replace("$x", "$")

    diff = generate_diff_insert(line_number, newlines)
    print "working on map_id=" + str(map_id) + " text_id=" + str(text_id)
    print diff
    apply_diff(diff)

def insert_all_text_labels():
    for map_id in extract_maps.map_headers.keys():
        if map_id < 40: continue #skip
        if map_id not in extract_maps.bad_maps:
            for text_id in extract_maps.map_headers[map_id]["referenced_texts"]:
                insert_text_label_tx_far(map_id, text_id)
        
                reset_incbins()
                analyze_incbins.reset_incbins()
                asm = None
                incbin_lines = []
                processed_incbins = {}
                analyze_incbins.asm = None
                analyze_incbins.incbin_lines = []
                analyze_incbins.processed_incbins = {}
        
                load_asm()
                isolate_incbins()
                process_incbins()

if __name__ == "__main__":
    #load map headers and object data
    extract_maps.load_rom()
    extract_maps.load_map_pointers()
    extract_maps.read_all_map_headers()

    #load texts (these two have different formats)
    all_texts = pretty_map_headers.analyze_texts.analyze_texts()
    pretty_map_headers.all_texts = all_texts
    tx_fars = pretty_map_headers.find_all_tx_fars()

    #load incbins
    reset_incbins()

    #insert _ViridianCityText10
    #insert_tx_far(1, 10)

    #just me testing a pokemart sign duplicate
    #insert_tx_far(3, 14)

    #this is the big one
    #insert_all_tx_far_targets()
    
    #for map_id in extract_maps.map_headers.keys():
    #    if map_id not in extract_maps.bad_maps:
    #        if len(extract_maps.map_headers[map_id]["referenced_texts"]) > 0:
    #            texts_label_pretty_printer(map_id)
    
    #insert_texts_label(240)
    #insert_all_texts_label()

    #insert_text_label_tx_far(240, 1)
    insert_all_text_labels()