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/lancelot:10/QP1A.190711.020/V11.0.4.0.QJCCNXM:user/release-keys");
ui_print("Target: Redmi/lancelot/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCCNXM:user/release-keys");
ui_print("Verifying current system...");
getprop("ro.build.fingerprint") == "Redmi/lancelot/lancelot:10/QP1A.190711.020/V11.0.4.0.QJCCNXM:user/release-keys" ||
    getprop("ro.build.fingerprint") == "Redmi/lancelot/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCCNXM:user/release-keys" ||
    abort("E3001: Package expects build fingerprint of Redmi/lancelot/lancelot:10/QP1A.190711.020/V11.0.4.0.QJCCNXM:user/release-keys or Redmi/lancelot/lancelot:10/QP1A.190711.020/V12.0.1.0.QJCCNXM: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:b066cfc81c28addb55cdf7435963b08236847e2a",
                      "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4bb9e10dcaf04b0b085685d43dff8674d8f2e63b") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:b066cfc81c28addb55cdf7435963b08236847e2a\" or \"EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4bb9e10dcaf04b0b085685d43dff8674d8f2e63b\" has unexpected contents.");
apply_patch_space(170192896) || abort("E3006: Not enough free space on /cache to apply patches.");
patch_partition_check("EMMC:/dev/block/platform/bootdevice/by-name/md1img:59003104:b190ef6bd86c541d3da3d6382b1a5ae227a46bac",
                      "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59009216:35c9a2a10856061157011495c78fe230a6a137ac") ||
    abort("E3005: \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59003104:b190ef6bd86c541d3da3d6382b1a5ae227a46bac\" or \"EMMC:/dev/block/platform/bootdevice/by-name/md1img:59009216:35c9a2a10856061157011495c78fe230a6a137ac\" has unexpected contents.");
apply_patch_space(59003104) || abort("E3006: Not enough free space on /cache to apply patches.");
show_progress(0.100000, 70);
if (range_sha1(map_partition("system"), "158,1,216,217,32770,32941,98306,98477,155093,155366,155368,155382,155453,155503,155505,155514,163842,164013,229378,229549,288211,288212,294914,295085,413329,413333,414440,414444,470425,470786,474885,474888,474916,474982,476750,476754,480205,480208,480342,480344,483470,483478,489255,489282,503117,503150,531204,535189,535794,535925,536058,536191,537035,537165,537298,537431,542383,542391,542438,543479,606435,606442,606937,606942,606947,606958,611599,611605,611608,611628,611664,611679,611681,611684,611699,611702,611707,611708,611716,611720,611731,611732,611758,611760,611766,611768,611781,611783,611797,611799,611817,611819,611878,611880,611897,611902,611905,611915,611952,611967,611968,611971,611981,611982,611984,611985,611987,611989,611991,611992,611994,611995,612003,612008,612018,612019,612047,612049,612055,612058,612060,612061,612070,612072,612088,612090,612117,612119,612123,612124,612148,612149,612165,612168,612170,612171,612184,612185,612219,612222,612268,612269,612290,612292,612304,612305,612706,612708,655373,655378,688129,688146,698881,698892,698898,700995,712103,712254,712255") == "72d31d61e02af5bd5086f4406f2ff350286a4274" || 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"), "158,1,216,217,32770,32941,98306,98477,155093,155366,155368,155382,155453,155503,155505,155514,163842,164013,229378,229549,288211,288212,294914,295085,413329,413333,414440,414444,470425,470786,474885,474888,474916,474982,476750,476754,480205,480208,480342,480344,483470,483478,489255,489282,503117,503150,531204,535189,535794,535925,536058,536191,537035,537165,537298,537431,542383,542391,542438,543479,606435,606442,606937,606942,606947,606958,611599,611605,611608,611628,611664,611679,611681,611684,611699,611702,611707,611708,611716,611720,611731,611732,611758,611760,611766,611768,611781,611783,611797,611799,611817,611819,611878,611880,611897,611902,611905,611915,611952,611967,611968,611971,611981,611982,611984,611985,611987,611989,611991,611992,611994,611995,612003,612008,612018,612019,612047,612049,612055,612058,612060,612061,612070,612072,612088,612090,612117,612119,612123,612124,612148,612149,612165,612168,612170,612171,612184,612185,612219,612222,612268,612269,612290,612292,612304,612305,612706,612708,655373,655378,688129,688146,698881,698892,698898,700995,712103,712254,712255") && 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"), "34,1,5562,5565,32770,32814,59892,59893,70637,70646,79081,79095,85152,85167,98306,98350,100112,100118,142301,142314,163842,163886,163907,163912,169819,169839,181342,181344,181384,181396,183029,183591,186504,186555,186556") == "9b5208e4429aaa225e514ba6f461cfe9297a6620" || 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"), "34,1,5562,5565,32770,32814,59892,59893,70637,70646,79081,79095,85152,85167,98306,98350,100112,100118,142301,142314,163842,163886,163907,163912,169819,169839,181342,181344,181384,181396,183029,183591,186504,186555,186556") && 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"), "10,1,32770,32782,32796,32797,49184,49334,50120,50146,50147") == "aa2348c0ce7d6613ea94f9e95fa77ef3fbb9ad77" || 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"), "10,1,32770,32782,32796,32797,49184,49334,50120,50146,50147") && 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:b066cfc81c28addb55cdf7435963b08236847e2a",
                "EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4bb9e10dcaf04b0b085685d43dff8674d8f2e63b",
                package_extract_file("boot.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/boot:67108864:4bb9e10dcaf04b0b085685d43dff8674d8f2e63b");
show_progress(0.600000, 600);

# --- Start patching dynamic partitions ---


# 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.");

# Update dynamic partition metadata

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

# 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:59003104:b190ef6bd86c541d3da3d6382b1a5ae227a46bac",
                "EMMC:/dev/block/platform/bootdevice/by-name/md1img:59009216:35c9a2a10856061157011495c78fe230a6a137ac",
                package_extract_file("patch/md1img.img.p")) ||
    abort("E3008: Failed to apply patch to EMMC:/dev/block/platform/bootdevice/by-name/md1img:59009216:35c9a2a10856061157011495c78fe230a6a137ac");
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();
