getprop("ro.product.device") == "lancelot" || abort("E3004: This package is for \"lancelot\" devices; this is a \"" + getprop("ro.product.device") + "\".");
ui_print("Source: Redmi/lancelot_ru/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCRUXM:user/release-keys");
ui_print("Target: Redmi/lancelot_ru/lancelot:10/QP1A.190711.020/V12.0.2.0.QJCRUXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/lancelot_ru/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCRUXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/lancelot_ru/lancelot:10/QP1A.190711.020/V12.0.2.0.QJCRUXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/lancelot_ru/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCRUXM:user/release-keys or Redmi/lancelot_ru/lancelot:10/QP1A.190711.020/V12.0.2.0.QJCRUXM:user/release-keys; this device has " + getprop("ro.build.fingerprint") + ".");
show_progress(0.100000, 10);
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4b23efcf0b910751d7dbd07adf3897516b20b5f1",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:042e47dbedb708d053e4bdac57525e4f2d8003d7") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4b23efcf0b910751d7dbd07adf3897516b20b5f1\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:042e47dbedb708d053e4bdac57525e4f2d8003d7\" has unexpected contents.");
apply_patch_space(67108864) || abort("E3006: Not enough free space on /cache to apply patches.");
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59066208:deea0be6eacb6bcb71558a62464bec7ce5eee738",
                      "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b2aa1d49971d625f43b8a538719987a97a6b6465") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59066208:deea0be6eacb6bcb71558a62464bec7ce5eee738\" or \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b2aa1d49971d625f43b8a538719987a97a6b6465\" has unexpected contents.");
apply_patch_space(59066208) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "86,1,195,223,230,480,484,500,501,1808,2229,32768,32770,32929,32949,33991,33993,34008,34012,34016,34017,34177,34181,34189,34190,34203,34207,34211,34212,34224,34228,34232,34233,34265,35412,35416,35417,35425,35435,35441,35445,35449,35450,35570,35576,35582,35583,37733,37737,37766,37767,40763,40764,43341,43342,43373,43377,43381,43382,43481,43485,43489,49196,49210,49214,49218,49219,49221,49222,49378,49382,49388,98306,98465,163842,164001,229378,229537,294914,295073,622606,622612,652678,654663,665036,665179,665180") == "adefd6b12d7e398acdff337deac21837c5798bb3" || block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat")) then
ui_print("Verified system image...");
else
check_first_block(map_partition("system"));
ifelse (block_image_recover(map_partition("system"), "86,1,195,223,230,480,484,500,501,1808,2229,32768,32770,32929,32949,33991,33993,34008,34012,34016,34017,34177,34181,34189,34190,34203,34207,34211,34212,34224,34228,34232,34233,34265,35412,35416,35417,35425,35435,35441,35445,35449,35450,35570,35576,35582,35583,37733,37737,37766,37767,40763,40764,43341,43342,43373,43377,43381,43382,43481,43485,43489,49196,49210,49214,49218,49219,49221,49222,49378,49382,49388,98306,98465,163842,164001,229378,229537,294914,295073,622606,622612,652678,654663,665036,665179,665180") && block_image_verify(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat"), ui_print("system recovered successfully."), abort("E1004: system partition fails to recover"));
endif;
if (range_sha1(map_partition("vendor"), "62,1,76,813,819,837,838,843,844,846,847,1361,1362,1364,1365,1526,1527,1538,1542,1546,1547,1761,1762,1841,1842,1912,1913,2098,2099,2177,2178,2257,2258,2337,2338,3289,3290,4779,4780,5830,6451,7367,7368,8624,8628,8629,8631,8632,8634,10887,10889,10896,32770,32806,98306,98342,131101,131102,149410,149873,152252,152295,152296") == "a180843594c2856c197c02d45bb100eab245e452" || block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat")) then
ui_print("Verified vendor image...");
else
check_first_block(map_partition("vendor"));
ifelse (block_image_recover(map_partition("vendor"), "62,1,76,813,819,837,838,843,844,846,847,1361,1362,1364,1365,1526,1527,1538,1542,1546,1547,1761,1762,1841,1842,1912,1913,2098,2099,2177,2178,2257,2258,2337,2338,3289,3290,4779,4780,5830,6451,7367,7368,8624,8628,8629,8631,8632,8634,10887,10889,10896,32770,32806,98306,98342,131101,131102,149410,149873,152252,152295,152296") && block_image_verify(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat"), ui_print("vendor recovered successfully."), abort("E2004: vendor partition fails to recover"));
endif;
if (range_sha1(map_partition("product"), "130,1,81,4417,4421,6562,6565,8717,8718,9253,9259,9276,9277,15516,15517,16156,16160,16930,16931,19338,19339,19703,19707,20214,20215,20227,20231,20235,20236,27129,27130,27531,27532,32768,32770,32834,32841,34762,34763,42821,42822,54709,54710,55366,55367,62845,62846,65536,65543,68960,68961,68967,68968,83533,83534,98304,98306,98370,98377,99286,99287,100700,100701,107084,107085,114326,114327,117437,117441,117450,117451,117452,117453,117468,117469,117470,117471,117477,117478,117517,117521,117525,117527,117532,117535,117539,117541,117546,117547,117592,117593,117652,117655,118104,118105,118476,118477,120583,120585,131072,131103,142386,142387,151729,151731,157073,157074,161090,161092,161139,161141,161282,161284,162540,162542,163620,163622,163631,163842,163906,229378,229442,229447,229449,262145,262151,264539,265338,269546,269612,269613") == "e0887a6a28b379c1a4991f7f1d2f62a63def228e" || block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat")) then
ui_print("Verified product image...");
else
ifelse (block_image_recover(map_partition("product"), "130,1,81,4417,4421,6562,6565,8717,8718,9253,9259,9276,9277,15516,15517,16156,16160,16930,16931,19338,19339,19703,19707,20214,20215,20227,20231,20235,20236,27129,27130,27531,27532,32768,32770,32834,32841,34762,34763,42821,42822,54709,54710,55366,55367,62845,62846,65536,65543,68960,68961,68967,68968,83533,83534,98304,98306,98370,98377,99286,99287,100700,100701,107084,107085,114326,114327,117437,117441,117450,117451,117452,117453,117468,117469,117470,117471,117477,117478,117517,117521,117525,117527,117532,117535,117539,117541,117546,117547,117592,117593,117652,117655,118104,118105,118476,118477,120583,120585,131072,131103,142386,142387,151729,151731,157073,157074,161090,161092,161139,161141,161282,161284,162540,162542,163620,163622,163631,163842,163906,229378,229442,229447,229449,262145,262151,264539,265338,269546,269612,269613") && block_image_verify(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat"), ui_print("product recovered successfully."), abort("E2004: product partition fails to recover"));
endif;

# ---- start making changes here ----

ui_print("Patching boot image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4b23efcf0b910751d7dbd07adf3897516b20b5f1",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:042e47dbedb708d053e4bdac57525e4f2d8003d7",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:042e47dbedb708d053e4bdac57525e4f2d8003d7");
show_progress(0.600000, 600);

# --- Start patching dynamic partitions ---


# Update dynamic partition metadata

assert(update_dynamic_partitions(package_extract_file("dynamic_partitions_op_list")));

# Patch partition product

ui_print("Patching product image after verification.");
block_image_update(map_partition("product"), package_extract_file("product.transfer.list"), "product.new.dat", "product.patch.dat") ||
  abort("E2001: Failed to update product image.");

# Patch partition vendor

ui_print("Patching vendor image after verification.");
block_image_update(map_partition("vendor"), package_extract_file("vendor.transfer.list"), "vendor.new.dat", "vendor.patch.dat") ||
  abort("E2001: Failed to update vendor image.");

# Patch partition system

ui_print("Patching system image after verification.");
block_image_update(map_partition("system"), package_extract_file("system.transfer.list"), "system.new.dat", "system.patch.dat") ||
  abort("E1001: Failed to update system image.");

# --- End patching dynamic partitions ---

show_progress(0.100000, 2);
show_mtupdate_stage("/cache/recovery/last_mtupdate_stage");
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "1") ,
(
ui_print("start to update general image");
package_extract_file("logo.bin", "/dev/block/platform/bootdevice/by-name/logo");
package_extract_file("dtbo.img", "/dev/block/platform/bootdevice/by-name/dtbo");
package_extract_file("exaid.img", "/dev/block/platform/bootdevice/by-name/exaid");
ui_print("Patching md1img image...");
show_progress(0.100000, 10);
patch_partition("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59066208:deea0be6eacb6bcb71558a62464bec7ce5eee738",
                "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b2aa1d49971d625f43b8a538719987a97a6b6465",
                package_extract_file("patch/md1img.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/md1img:59070448:b2aa1d49971d625f43b8a538719987a97a6b6465");
package_extract_file("spmfw.img", "/dev/block/platform/bootdevice/by-name/spmfw");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "1");
),
ui_print("general images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "3") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "2") then

ui_print("start to update alt loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_2");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp2");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk2");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee2");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot1"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot1/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot1"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "2");
endif;

switch_active("sspm_1", "sspm_2");
switch_active("scp1", "scp2");
switch_active("lk", "lk2");
switch_active("tee1", "tee2");
switch_active("preloader", "preloader2");
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "3");
),
ui_print("alt loder images are already updated");
);
ifelse (
less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "5") ,
(
if less_than_int(get_mtupdate_stage("/cache/recovery/last_mtupdate_stage"), "4") then

ui_print("start to update main loader image");
package_extract_file("sspm.img", "/dev/block/platform/bootdevice/by-name/sspm_1");
package_extract_file("scp.img", "/dev/block/platform/bootdevice/by-name/scp1");
package_extract_file("lk.img", "/dev/block/platform/bootdevice/by-name/lk");
package_extract_file("tee.img", "/dev/block/platform/bootdevice/by-name/tee1");
if get_storage_type() then 
 assert(package_extract_file("preloader_ufs.img", "/dev/block/mmcblk0boot0"));
else 
 assert(set_emmc_writable("/sys/block/mmcblk0boot0/force_ro"),
        package_extract_file("preloader_emmc.img", "/dev/block/mmcblk0boot0"));
endif;
set_mtupdate_stage("/cache/recovery/last_mtupdate_stage", "4");
endif;

switch_active("sspm_2", "sspm_1");
switch_active("scp2", "scp1");
switch_active("lk2", "lk");
switch_active("tee2", "tee1");
switch_active("preloader2", "preloader");
),
ui_print("main loader images are already updated");
);
delete("/cache/recovery/last_mtupdate_stage");
package_extract_file("vbmeta_system.img", "/dev/block/platform/bootdevice/by-name/vbmeta_system");
package_extract_file("vbmeta.img", "/dev/block/platform/bootdevice/by-name/vbmeta");
package_extract_file("vbmeta_vendor.img", "/dev/block/platform/bootdevice/by-name/vbmeta_vendor");
post_ota_action();
